Hello,
I'm testing a pair of new servers we just bought.
They are HP DL585 dual Opteron 844 with 8G RAM, RAID1 over 2x72G SCSI disks
(HP CISS driver) and running 2.6.11. In /proc/driver/cciss/cciss0 we have:
cciss0: HP Smart Array 5i Controller
Board ID: 0x40800e11
Firmware Version: 2.56
IRQ: 18
Logical drives: 1
Current Q depth: 0
Current # commands on controller: 0
Max Q depth since init: 6
Max # commands on controller since init: 190
Max SG entries since init: 31
cciss/c0d0: 72.83GB RAID 1(1+0)
As a test, I'm running bonnie++ while two md5sum are checksumming /dev/zero.
I see 98% CPU is correctly allocated on the two md5sum processes, but when
bonnie is in the "Writing intelligently phase" the system appears noticeably
unresponsive (high latency) and bonnie and pdflush are uninterruptible almost
all the time (D in top output). If I try to kill -9 bonnie++, it goes on
consuming I/O bandwith for several tens of seconds, before finally dieing.
Unresponsiveness is not 2.6.11 specific (we've seen the same thing on 2.6.10
and 2.6.8), not I/O scheduler specific ("as" and "deadline" behave the same)
and not CPU/SMP specific (reproduced on single P4 HT and single P3), but only
on these two DL585 servers we've seen bonnie++ resisting kill -9 for tens of
seconds.
Of course on request I can provide any other useful info.
Any help is appreciated.
TIA,
Simone Piunno
--
Simone Piunno, chief architect
Wireless Solutions SPA - DADA group
Europe HQ, via Castiglione 25 Bologna
web:http://www.dada-ws.com tel:+39512966811 fax:+39512966800
On Friday 11 March 2005 13:08, Simone Piunno wrote:
>
> Hello,
>
> I'm testing a pair of new servers we just bought.
> They are HP DL585 dual Opteron 844 with 8G RAM, RAID1 over 2x72G SCSI disks
> (HP CISS driver) and running 2.6.11. In /proc/driver/cciss/cciss0 we have:
>
> cciss0: HP Smart Array 5i Controller
> Board ID: 0x40800e11
> Firmware Version: 2.56
> IRQ: 18
> Logical drives: 1
> Current Q depth: 0
> Current # commands on controller: 0
> Max Q depth since init: 6
> Max # commands on controller since init: 190
> Max SG entries since init: 31
> cciss/c0d0: 72.83GB RAID 1(1+0)
>
> As a test, I'm running bonnie++ while two md5sum are checksumming /dev/zero.
> I see 98% CPU is correctly allocated on the two md5sum processes, but when
> bonnie is in the "Writing intelligently phase" the system appears noticeably
> unresponsive (high latency) and bonnie and pdflush are uninterruptible almost
> all the time (D in top output). If I try to kill -9 bonnie++, it goes on
> consuming I/O bandwith for several tens of seconds, before finally dieing.
>
> Unresponsiveness is not 2.6.11 specific (we've seen the same thing on 2.6.10
> and 2.6.8), not I/O scheduler specific ("as" and "deadline" behave the same)
> and not CPU/SMP specific (reproduced on single P4 HT and single P3), but only
> on these two DL585 servers we've seen bonnie++ resisting kill -9 for tens of
> seconds.
>
> Of course on request I can provide any other useful info.
> Any help is appreciated.
I think Alt-SysRq-T will be interesting to see
--
vda
Alle 12:35, venerd? 11 marzo 2005, Denis Vlasenko ha scritto:
> >
> > Unresponsiveness is not 2.6.11 specific (we've seen the same thing on
> > 2.6.10 and 2.6.8), not I/O scheduler specific ("as" and "deadline" behave
> > the same) and not CPU/SMP specific (reproduced on single P4 HT and single
> > P3), but only on these two DL585 servers we've seen bonnie++ resisting
> > kill -9 for tens of seconds.
> >
> > Of course on request I can provide any other useful info.
> > Any help is appreciated.
>
> I think Alt-SysRq-T will be interesting to see
Unfortunately this machine is on a remote location, so we don't have access to
keyboard. In some days we will be able to have a report of Alt-SysRq-T, but
until this of course we can provide any information that can be gathered on
a remote shell.
--
Fabio Coatti Wireless Solutions SpA - DADA group
Services Manager Europe HQ, via Castiglione 25 Bologna
http://www.wseurope.com Tel: +390512966811 Fax: +390512966800
Fabio Coatti wrote:
> Alle 12:35, venerd? 11 marzo 2005, Denis Vlasenko ha scritto:
>
>>>Unresponsiveness is not 2.6.11 specific (we've seen the same thing on
>>>2.6.10 and 2.6.8), not I/O scheduler specific ("as" and "deadline" behave
>>>the same) and not CPU/SMP specific (reproduced on single P4 HT and single
>>>P3), but only on these two DL585 servers we've seen bonnie++ resisting
>>>kill -9 for tens of seconds.
>>>
>>>Of course on request I can provide any other useful info.
>>>Any help is appreciated.
>>
>>I think Alt-SysRq-T will be interesting to see
>
> Unfortunately this machine is on a remote location, so we don't have access to
> keyboard. In some days we will be able to have a report of Alt-SysRq-T, but
> until this of course we can provide any information that can be gathered on
> a remote shell.
echo t > /proc/sysrq-trigger
will do the job equivalently.
Baruch
Alle 14:29, venerd? 11 marzo 2005, Baruch Even ha scritto:
> echo t > /proc/sysrq-trigger
Before killing bonnie:
0>{keventd_create_kthread+0}
<ffffffff801452d0>{kthread+0} <ffffffff8010e07b>{child_rip+0}
aio/0 S ffff8100f577a200 0 295 13 296 292
(L-TLB)
ffff81000c0e3e58 0000000000000046 0000000000000071 0000000000000070
ffff8101ffe58130 ffff8101ffe58820 ffff8101ffe58a98 0000000000000000
0000000000000000 0000000000010000
Call Trace:<ffffffff801453f0>{keventd_create_kthread+0}
<ffffffff80141150>{worker_thread+0}
<ffffffff80141281>{worker_thread+305}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff801453f0>{keventd_create_kthread+0}
<ffffffff80141150>{worker_thread+0}
<ffffffff801453f0>{keventd_create_kthread+0}
<ffffffff801453a9>{kthread+217} <ffffffff8010e083>{child_rip+8}
<ffffffff801453f0>{keventd_create_kthread+0} <ffffffff801452d0>{kthread+0}
<ffffffff8010e07b>{child_rip+0}
aio/1 S 00000000017116c9 0 296 13 307 295
(L-TLB)
ffff81000c0e5e58 0000000000000046 0000000100000000 0000000000000189
ffff81000c010e10 ffff8101ffe58130 ffff8101ffe583a8 0000000000000001
0000000000000000 0000000000010000
Call Trace:<ffffffff801453f0>{keventd_create_kthread+0}
<ffffffff80141150>{worker_thread+0}
<ffffffff80141281>{worker_thread+305}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff801453f0>{keventd_create_kthread+0}
<ffffffff80141150>{worker_thread+0}
<ffffffff801453f0>{keventd_create_kthread+0}
<ffffffff801453a9>{kthread+217} <ffffffff8010e083>{child_rip+8}
<ffffffff801453f0>{keventd_create_kthread+0} <ffffffff801452d0>{kthread+0}
<ffffffff8010e07b>{child_rip+0}
kswapd1 S 0000000001743095 0 293 1 294 204
(L-TLB)
ffff81000c0e1ea8 0000000000000046 0000000100000002 00000000000001ee
ffff81000c010e10 ffff8101ffe59600 ffff8101ffe59878 0000000000000001
0000000000000001 0000000000000000
Call Trace:<ffffffff801589d5>{kswapd+293}
<ffffffff801459d0>{autoremove_wake_function+0}
<ffffffff801459d0>{autoremove_wake_function+0} <ffffffff8010e083>{child_rip+8}
<ffffffff801588b0>{kswapd+0} <ffffffff8010e07b>{child_rip+0}
kswapd0 S 0000000001740ba5 0 294 1 303 293
(L-TLB)
ffff8101ffe5bea8 0000000000000046 0000000000000078 0000000000000176
ffff8100f5795580 ffff8101ffe58f10 ffff8101ffe59188 0000000000000000
0000000000000000 0000000000000000
Call Trace:<ffffffff801589d5>{kswapd+293}
<ffffffff801459d0>{autoremove_wake_function+0}
<ffffffff801459d0>{autoremove_wake_function+0} <ffffffff8010e083>{child_rip+8}
<ffffffff801588b0>{kswapd+0} <ffffffff8010e07b>{child_rip+0}
jfsIO S 0000000000000000 0 303 1 304 294
(L-TLB)
ffff8100048bdeb8 0000000000000046 0000000000000075 00000000000001ad
ffff81000c011500 ffff81000c0f7640 ffff81000c0f78b8 ffffffff805c03e0
ffffffff805c03e8 0000000000000296
Call Trace:<ffffffff8026878b>{jfsIOWait+283}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff8012c020>{default_wake_function+0} <ffffffff8010e083>{child_rip+8}
<ffffffff80268670>{jfsIOWait+0} <ffffffff8010e07b>{child_rip+0}
jfsCommit S ffffffff806ec6a8 0 304 1 305 303
(L-TLB)
ffff8101ffee5eb8 0000000000000046 0000000000000075 00000000000001ae
ffff81000c011500 ffff81000c0f6f50 ffff81000c0f71c8 ffffffff805c03e0
ffffffff805c03e8 0000000000000296
Call Trace:<ffffffff8026b811>{jfs_lazycommit+593}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff8012c020>{default_wake_function+0} <ffffffff8010e083>{child_rip+8}
<ffffffff8026b5c0>{jfs_lazycommit+0} <ffffffff8010e07b>{child_rip+0}
jfsCommit S 0000000000000000 0 305 1 306 304
(L-TLB)
ffff8100048bfeb8 0000000000000046 0000000000000075 000000000000012f
ffff81000c011500 ffff81000c0f6860 ffff81000c0f6ad8 ffffffff805c03e0
ffffffff805c03e8 0000000000000296
Call Trace:<ffffffff8026b811>{jfs_lazycommit+593}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff8012c020>{default_wake_function+0} <ffffffff8010e083>{child_rip+8}
<ffffffff8026b5c0>{jfs_lazycommit+0} <ffffffff8010e07b>{child_rip+0}
jfsSync S 0000000000000001 0 306 1 311 305
(L-TLB)
ffff8101ffee7ea8 0000000000000046 0000000000000075 0000000000000183
ffff81000c011500 ffff81000c0f6170 ffff81000c0f63e8 ffffffff805c03e0
ffffffff805c03e8 0000000000000296
Call Trace:<ffffffff8026bc88>{jfs_sync+600}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff8012c020>{default_wake_function+0} <ffffffff8010e083>{child_rip+8}
<ffffffff8026ba30>{jfs_sync+0} <ffffffff8010e07b>{child_rip+0}
xfslogd/0 S ffff81000c0c3e00 0 307 13 308 296
(L-TLB)
ffff8101ffee9e58 0000000000000046 0000000000000071 000000000000007c
ffff8100048c0f90 ffff8100048c1680 ffff8100048c18f8 0000000000000000
0000000000000000 0000000000010000
Call Trace:<ffffffff801453f0>{keventd_create_kthread+0}
<ffffffff80141150>{worker_thread+0}
<ffffffff80141281>{worker_thread+305}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff801453f0>{keventd_create_kthread+0}
<ffffffff80141150>{worker_thread+0}
<ffffffff801453f0>{keventd_create_kthread+0}
<ffffffff801453a9>{kthread+217} <ffffffff8010e083>{child_rip+8}
<ffffffff801453f0>{keventd_create_kthread+0} <ffffffff801452d0>{kthread+0}
<ffffffff8010e07b>{child_rip+0}
xfslogd/1 S ffff8100048e77f0 0 308 13 309 307
(L-TLB)
ffff8100048c3e58 0000000000000046 000000010000007d 000000000000008f
ffff8101ffeee1f0 ffff8100048c0f90 ffff8100048c1208 0000000000000001
0000000000000096 0000000000000003
Call Trace:<ffffffff8012c0e3>{__wake_up+67}
<ffffffff802c4560>{pagebuf_iodone_work+0}
<ffffffff802c4560>{pagebuf_iodone_work+0}
<ffffffff80141281>{worker_thread+305}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff801453f0>{keventd_create_kthread+0}
<ffffffff80141150>{worker_thread+0}
<ffffffff801453f0>{keventd_create_kthread+0} <ffffffff801453a9>{kthread+217}
<ffffffff8010e083>{child_rip+8} <ffffffff801453f0>{keventd_create_kthread+0}
<ffffffff801452d0>{kthread+0} <ffffffff8010e07b>{child_rip+0}
xfsdatad/0 S ffff81000c0c3c00 0 309 13 310 308
(L-TLB)
ffff8101ffeebe58 0000000000000046 0000000000000071 0000000000000064
ffff8100048c01b0 ffff8100048c08a0 ffff8100048c0b18 0000000000000000
0000000000000000 0000000000010000
Call Trace:<ffffffff801453f0>{keventd_create_kthread+0}
<ffffffff80141150>{worker_thread+0}
<ffffffff80141281>{worker_thread+305}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff801453f0>{keventd_create_kthread+0}
<ffffffff80141150>{worker_thread+0}
<ffffffff801453f0>{keventd_create_kthread+0}
<ffffffff801453a9>{kthread+217} <ffffffff8010e083>{child_rip+8}
<ffffffff801453f0>{keventd_create_kthread+0} <ffffffff801452d0>{kthread+0}
<ffffffff8010e07b>{child_rip+0}
xfsdatad/1 S 00000000018038d0 0 310 13 309
(L-TLB)
ffff8101ffeede58 0000000000000046 0000000100000000 0000000000000125
ffff81000c010e10 ffff8100048c01b0 ffff8100048c0428 0000000000000001
0000000000000000 0000000000010000
Call Trace:<ffffffff801453f0>{keventd_create_kthread+0}
<ffffffff80141150>{worker_thread+0}
<ffffffff80141281>{worker_thread+305}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff801453f0>{keventd_create_kthread+0}
<ffffffff80141150>{worker_thread+0}
<ffffffff801453f0>{keventd_create_kthread+0}
<ffffffff801453a9>{kthread+217} <ffffffff8010e083>{child_rip+8}
<ffffffff801453f0>{keventd_create_kthread+0} <ffffffff801452d0>{kthread+0}
<ffffffff8010e07b>{child_rip+0}
xfsbufd S 00000001000c5d03 0 311 1 387 306
(L-TLB)
ffff8100048c7e98 0000000000000046 000000000000007d 0000000000000103
ffff8101ff515540 ffff8101ffeef6c0 ffff8101ffeef938 ffff8100f526c428
ffff8100f526aaf0 0000000000000292
Call Trace:<ffffffff8013921d>{__mod_timer+317}
<ffffffff804a0c26>{schedule_timeout+166}
<ffffffff80139de0>{process_timeout+0} <ffffffff802c5a99>{pagebuf_daemon+153}
<ffffffff8010e083>{child_rip+8} <ffffffff801182e0>{flat_send_IPI_mask+0}
<ffffffff802c5a00>{pagebuf_daemon+0} <ffffffff8010e07b>{child_rip+0}
kseriod S 0000000002b6872e 0 387 1 460 311
(L-TLB)
ffff8100048edeb8 0000000000000046 0000000000000077 00000000000001f8
ffff8100f5795580 ffff8101ffeeefd0 ffff8101ffeef248 0000000000001158
ffff8100f5795580 ffff8101ffeeefd0
Call Trace:<ffffffff80354ce7>{serio_thread+455}
<ffffffff801459d0>{autoremove_wake_function+0}
<ffffffff801459d0>{autoremove_wake_function+0} <ffffffff8010e083>{child_rip+8}
<ffffffff80354b20>{serio_thread+0} <ffffffff8010e07b>{child_rip+0}
xfssyncd S 00000001000c7054 0 460 1 675 387
(L-TLB)
ffff8101ffc79e88 0000000000000046 000000010000007d 00000000000004f8
ffff8101ffeee1f0 ffff8100f56f9700 ffff8100f56f9978 0000000000000000
ffff8101051515d8 0000000000000296
Call Trace:<ffffffff8013921d>{__mod_timer+317}
<ffffffff804a0c26>{schedule_timeout+166}
<ffffffff80139de0>{process_timeout+0} <ffffffff802cac79>{xfssyncd+153}
<ffffffff802cb1e0>{linvfs_fill_super+0} <ffffffff8010e083>{child_rip+8}
<ffffffff802cb1e0>{linvfs_fill_super+0} <ffffffff802b9cd0>{xfs_root+0}
<ffffffff802cabe0>{xfssyncd+0} <ffffffff8010e07b>{child_rip+0}
xfssyncd S 00000001000cae78 0 675 1 676 460
(L-TLB)
ffff8101ff295e88 0000000000000046 000000010000007d 0000000000000505
ffff8101ffeee1f0 ffff8101ff539150 ffff8101ff5393c8 0000000000000000
ffff81010510ac98 0000000000000296
Call Trace:<ffffffff8013921d>{__mod_timer+317}
<ffffffff804a0c26>{schedule_timeout+166}
<ffffffff80139de0>{process_timeout+0} <ffffffff802cac79>{xfssyncd+153}
<ffffffff802cb1e0>{linvfs_fill_super+0} <ffffffff8010e083>{child_rip+8}
<ffffffff802cb1e0>{linvfs_fill_super+0} <ffffffff802b9cd0>{xfs_root+0}
<ffffffff802cabe0>{xfssyncd+0} <ffffffff8010e07b>{child_rip+0}
xfssyncd S 00000001000caed9 0 676 1 1512 675
(L-TLB)
ffff8101ff2b7e88 0000000000000046 000000010000007d 000000000000045d
ffff8101ff538a60 ffff8101053c03b0 ffff8101053c0628 0000000000000000
ffff81010510a5d8 0000000000000296
Call Trace:<ffffffff8013921d>{__mod_timer+317}
<ffffffff804a0c26>{schedule_timeout+166}
<ffffffff80139de0>{process_timeout+0} <ffffffff802cac79>{xfssyncd+153}
<ffffffff802cb1e0>{linvfs_fill_super+0} <ffffffff8010e083>{child_rip+8}
<ffffffff802cb1e0>{linvfs_fill_super+0} <ffffffff802b9cd0>{xfs_root+0}
<ffffffff802cabe0>{xfssyncd+0} <ffffffff8010e07b>{child_rip+0}
syslog-ng R running task 0 1512 1 1728 676 (NOTLB)
ntpd S ffff810004929380 0 1728 1 1822 1512
(NOTLB)
ffff8101febc1d88 0000000000000086 000000010000007d 000000000000141a
ffff8101ffeee1f0 ffff8101053d71d0 ffff8101053d7448 ffff8101053d71d0
00000010febc1db8 0000000000000282
Call Trace:<ffffffff804a0b9e>{schedule_timeout+30}
<ffffffff8014573c>{add_wait_queue+28}
<ffffffff803dabf3>{datagram_poll+35} <ffffffff80413b2f>{udp_poll+15}
<ffffffff80182477>{do_select+999} <ffffffff80181fa0>{__pollwait+0}
<ffffffff80182845>{sys_select+885} <ffffffff8010d2f9>{sys_rt_sigreturn+553}
<ffffffff8010d4ca>{system_call+126}
master S 00000101aa142085 0 1822 1 1839 1875 1728
(NOTLB)
ffff8101fe0d5d88 0000000000000086 0000000100000074 00000000000019c9
ffff8100f56f9010 ffff8101ff538370 ffff8101ff5385e8 0000000000000282
0000000100000000 0000000000000296
Call Trace:<ffffffff8013921d>{__mod_timer+317}
<ffffffff804a0c26>{schedule_timeout+166}
<ffffffff80139de0>{process_timeout+0} <ffffffff80182477>{do_select+999}
<ffffffff80181fa0>{__pollwait+0} <ffffffff8012c0e3>{__wake_up+67}
<ffffffff80182845>{sys_select+885} <ffffffff8010d4ca>{system_call+126}
pickup S 00000001000ddceb 0 1839 1822 1840
(NOTLB)
ffff8101fe5efd88 0000000000000082 000000010000007d 00000000000000a3
ffff8101ffeee1f0 ffff8100f56f9010 ffff8100f56f9288 0000000000000000
00000000000000d0 0000000000000296
Call Trace:<ffffffff8013921d>{__mod_timer+317}
<ffffffff804a0c26>{schedule_timeout+166}
<ffffffff80139de0>{process_timeout+0} <ffffffff80182477>{do_select+999}
<ffffffff80181fa0>{__pollwait+0} <ffffffff80182845>{sys_select+885}
<ffffffff8010d4ca>{system_call+126}
qmgr S 000000ef4b3774bc 0 1840 1822 1839
(NOTLB)
ffff8101fe123d88 0000000000000082 0000000100000286 0000000000001609
ffff81000c010e10 ffff8101053d78c0 ffff8101053d7b38 0000000000000000
00000000000000d0 0000000000000296
Call Trace:<ffffffff8013921d>{__mod_timer+317}
<ffffffff804a0c26>{schedule_timeout+166}
<ffffffff80139de0>{process_timeout+0} <ffffffff80182477>{do_select+999}
<ffffffff80181fa0>{__pollwait+0} <ffffffff80182845>{sys_select+885}
<ffffffff8010d4ca>{system_call+126}
sshd S ffff8101fdc0bc80 0 1875 1 1995 1915 1822
(NOTLB)
ffff8101fdc3bd88 0000000000000082 0000000100000074 0000000000000717
ffff810004ae0170 ffff8101053a67a0 ffff8101053a6a18 0000000000000000
00000000000000d0 0000000000000286
Call Trace:<ffffffff804a0b9e>{schedule_timeout+30}
<ffffffff80150bce>{__get_free_pages+14}
<ffffffff8014573c>{add_wait_queue+28} <ffffffff80182477>{do_select+999}
<ffffffff80181fa0>{__pollwait+0} <ffffffff80182845>{sys_select+885}
<ffffffff8010d4ca>{system_call+126}
cron S 00000001000cae17 0 1915 1 1932 1875
(NOTLB)
ffff8101fe2d5ee8 0000000000000082 000000010000007a 00000000000007f4
ffff8101ff538a60 ffff8101ff514760 ffff8101ff5149d8 0000000000000000
0000000000000008 0000000000000292
Call Trace:<ffffffff8013921d>{__mod_timer+317}
<ffffffff804a0c26>{schedule_timeout+166}
<ffffffff80139de0>{process_timeout+0} <ffffffff80139ed2>{sys_nanosleep+194}
<ffffffff8010d4ca>{system_call+126}
agetty S ffff8101ff314000 0 1932 1 1934 1915
(NOTLB)
ffff81010520dd78 0000000000000082 0000000000000075 00000000000066f3
ffff8101ff539840 ffff8101ffeee8e0 ffff8101ffeeeb58 0000000000000001
00000000000000ff ffffffff8032de34
Call Trace:<ffffffff8032de34>{tty_ldisc_deref+116}
<ffffffff804a0b9e>{schedule_timeout+30}
<ffffffff80130949>{release_console_sem+393}
<ffffffff8014573c>{add_wait_queue+28}
<ffffffff80333c67>{read_chan+1143} <ffffffff8012c020>{default_wake_function+0}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff8032de34>{tty_ldisc_deref+116}
<ffffffff8032e286>{tty_read+214} <ffffffff8016f0a1>{vfs_read+193}
<ffffffff8016f383>{sys_read+83} <ffffffff8010d4ca>{system_call+126}
agetty S ffff8101fe363000 0 1934 1 1935 1932
(NOTLB)
ffff8101fefa7d78 0000000000000082 0000000100000075 0000000000003c4c
ffff8101053a60b0 ffff8100f56f8230 ffff8100f56f84a8 0000000000000001
00000000000000ff ffffffff8032de34
Call Trace:<ffffffff8032de34>{tty_ldisc_deref+116}
<ffffffff804a0b9e>{schedule_timeout+30}
<ffffffff80130949>{release_console_sem+393}
<ffffffff8014573c>{add_wait_queue+28}
<ffffffff80333c67>{read_chan+1143} <ffffffff8012c020>{default_wake_function+0}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff8032de34>{tty_ldisc_deref+116}
<ffffffff8032e286>{tty_read+214} <ffffffff8016f0a1>{vfs_read+193}
<ffffffff8016f383>{sys_read+83} <ffffffff8010d4ca>{system_call+126}
agetty S ffff8101fe9c1000 0 1935 1 1936 1934
(NOTLB)
ffff8101fe953d78 0000000000000082 0000000000000075 0000000000004254
ffff8101ffeee8e0 ffff8101053d8720 ffff8101053d8998 0000000000000001
00000000000000ff ffffffff8032de34
Call Trace:<ffffffff8032de34>{tty_ldisc_deref+116}
<ffffffff804a0b9e>{schedule_timeout+30}
<ffffffff80130949>{release_console_sem+393}
<ffffffff8014573c>{add_wait_queue+28}
<ffffffff80333c67>{read_chan+1143} <ffffffff8012c020>{default_wake_function+0}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff8032de34>{tty_ldisc_deref+116}
<ffffffff8032e286>{tty_read+214} <ffffffff8016f0a1>{vfs_read+193}
<ffffffff8016f383>{sys_read+83} <ffffffff8010d4ca>{system_call+126}
agetty S 00000006ce68f5ba 0 1936 1 1937 1935
(NOTLB)
ffff8101fe8c5d78 0000000000000082 0000000100000074 0000000000002e90
ffff8101053a6e90 ffff8101053a60b0 ffff8101053a6328 0000000000000001
00000000000000ff ffffffff8032de34
Call Trace:<ffffffff8032de34>{tty_ldisc_deref+116}
<ffffffff804a0b9e>{schedule_timeout+30}
<ffffffff80130949>{release_console_sem+393}
<ffffffff8014573c>{add_wait_queue+28}
<ffffffff80333c67>{read_chan+1143} <ffffffff8012c020>{default_wake_function+0}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff8032de34>{tty_ldisc_deref+116}
<ffffffff8032e286>{tty_read+214} <ffffffff8016f0a1>{vfs_read+193}
<ffffffff8016f383>{sys_read+83} <ffffffff8010d4ca>{system_call+126}
agetty S 00000006ce6ced34 0 1937 1 1938 1936
(NOTLB)
ffff8101fe95dd78 0000000000000086 0000000100000004 00000000000028c8
ffff81000c010e10 ffff8101053a6e90 ffff8101053a7108 0000000000000001
00000000000000ff ffffffff8032de34
Call Trace:<ffffffff8032de34>{tty_ldisc_deref+116}
<ffffffff804a0b9e>{schedule_timeout+30}
<ffffffff80130949>{release_console_sem+393}
<ffffffff8014573c>{add_wait_queue+28}
<ffffffff80333c67>{read_chan+1143} <ffffffff8012c020>{default_wake_function+0}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff8032de34>{tty_ldisc_deref+116}
<ffffffff8032e286>{tty_read+214} <ffffffff8016f0a1>{vfs_read+193}
<ffffffff8016f383>{sys_read+83} <ffffffff8010d4ca>{system_call+126}
agetty S 00000006ce79c7c7 0 1938 1 1937
(NOTLB)
ffff8101fe903d78 0000000000000086 0000000000000005 0000000000002440
ffffffff80512a80 ffff8101ff539840 ffff8101ff539ab8 0000000000000000
00000000000000ff ffffffff8032de34
Call Trace:<ffffffff8032de34>{tty_ldisc_deref+116}
<ffffffff804a0b9e>{schedule_timeout+30}
<ffffffff80130949>{release_console_sem+393}
<ffffffff8014573c>{add_wait_queue+28}
<ffffffff80333c67>{read_chan+1143} <ffffffff8012c020>{default_wake_function+0}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff8032de34>{tty_ldisc_deref+116}
<ffffffff8032e286>{tty_read+214} <ffffffff8016f0a1>{vfs_read+193}
<ffffffff8016f383>{sys_read+83} <ffffffff8010d4ca>{system_call+126}
sshd S 7fffffffffffffff 0 1995 1875 1997 2004
(NOTLB)
ffff8101fe391be8 0000000000000086 0000000100000075 000000000000003f
ffff8101ff514e50 ffff8101ff514070 ffff8101ff5142e8 ffff8101ff6a3000
ffff8100f550c4c0 ffffffff8044bf77
Call Trace:<ffffffff8044bf77>{unix_stream_sendmsg+711}
<ffffffff804a0b9e>{schedule_timeout+30}
<ffffffff80145863>{prepare_to_wait+35}
<ffffffff8044c5dd>{unix_stream_recvmsg+621}
<ffffffff801459d0>{autoremove_wake_function+0}
<ffffffff8044bf77>{unix_stream_sendmsg+711}
<ffffffff801459d0>{autoremove_wake_function+0}
<ffffffff803d43c6>{sock_aio_read+278}
<ffffffff802f574d>{__up_read+29} <ffffffff802a25b8>{xfs_iunlock+104}
<ffffffff8016efad>{do_sync_read+173} <ffffffff801779c9>{cdev_get+9}
<ffffffff80177b42>{chrdev_open+338} <ffffffff8016e566>{dentry_open+230}
<ffffffff801459d0>{autoremove_wake_function+0}
<ffffffff8016e64e>{filp_open+62}
<ffffffff8016f0b4>{vfs_read+212} <ffffffff8016f383>{sys_read+83}
<ffffffff8010d4ca>{system_call+126}
sshd S 000000f4d37eed09 0 1997 1995 1998
(NOTLB)
ffff8101fe2edd88 0000000000000082 0000000100000073 0000000000000a23
ffff8101053d6ae0 ffff8101ff514e50 ffff8101ff5150c8 ffffffff805c9a80
0000000000000000 0000000000000001
Call Trace:<ffffffff804a0b9e>{schedule_timeout+30}
<ffffffff8032de34>{tty_ldisc_deref+116}
<ffffffff8032f130>{tty_poll+176} <ffffffff80182477>{do_select+999}
<ffffffff80181fa0>{__pollwait+0} <ffffffff80182845>{sys_select+885}
<ffffffff8010d4ca>{system_call+126}
bash S 000000f4d3886297 0 1998 1997 2040
(NOTLB)
ffff8101fdcade58 0000000000000082 0000000100000074 0000000000003b0c
ffff8101ffeee1f0 ffff8101053d6ae0 ffff8101053d6d58 ffffffff8012a6eb
0000000000000000 0000000000000001
Call Trace:<ffffffff8012a6eb>{try_to_wake_up+555}
<ffffffff80134375>{do_wait+3477}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff8010d4ca>{system_call+126}
sshd S 7fffffffffffffff 0 2004 1875 2006 2013 1995
(NOTLB)
ffff8101fdc4bbe8 0000000000000086 0000000100000075 000000000000003e
ffff8101053d63f0 ffff810004a65600 ffff810004a65878 ffff8101ff6e1c00
ffff8101feed7a80 ffffffff8044bf77
Call Trace:<ffffffff8044bf77>{unix_stream_sendmsg+711}
<ffffffff804a0b9e>{schedule_timeout+30}
<ffffffff80145863>{prepare_to_wait+35}
<ffffffff8044c5dd>{unix_stream_recvmsg+621}
<ffffffff801459d0>{autoremove_wake_function+0}
<ffffffff8044bf77>{unix_stream_sendmsg+711}
<ffffffff801459d0>{autoremove_wake_function+0}
<ffffffff803d43c6>{sock_aio_read+278}
<ffffffff802f574d>{__up_read+29} <ffffffff802a25b8>{xfs_iunlock+104}
<ffffffff8016efad>{do_sync_read+173} <ffffffff801779c9>{cdev_get+9}
<ffffffff80177b42>{chrdev_open+338} <ffffffff8016e566>{dentry_open+230}
<ffffffff801459d0>{autoremove_wake_function+0}
<ffffffff8016e64e>{filp_open+62}
<ffffffff8016f0b4>{vfs_read+212} <ffffffff8016f383>{sys_read+83}
<ffffffff8010d4ca>{system_call+126}
sshd S ffff8101053d2580 0 2006 2004 2007
(NOTLB)
ffff8101fdca7d88 0000000000000086 000000010000007d 0000000000000e88
ffff8101ffeee1f0 ffff8101053d63f0 ffff8101053d6668 ffffffff805c9a80
0000000000000000 0000000000000001
Call Trace:<ffffffff804a0b9e>{schedule_timeout+30}
<ffffffff8032de34>{tty_ldisc_deref+116}
<ffffffff8032f130>{tty_poll+176} <ffffffff80182477>{do_select+999}
<ffffffff80181fa0>{__pollwait+0} <ffffffff80182845>{sys_select+885}
<ffffffff8010d4ca>{system_call+126}
bash S 000000f5d3de228e 0 2007 2006 2041
(NOTLB)
ffff8101fdd0be58 0000000000000082 0000000000000075 000000000000366c
ffff8101ff515540 ffff8101053d9500 ffff8101053d9778 ffffffff8012a6eb
0000000000000000 0000000000000001
Call Trace:<ffffffff8012a6eb>{try_to_wake_up+555}
<ffffffff80134375>{do_wait+3477}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff8010d4ca>{system_call+126}
sshd S 7fffffffffffffff 0 2013 1875 2015 2022 2004
(NOTLB)
ffff8101fdc8bbe8 0000000000000082 0000000100000075 000000000000004a
ffff810004a64f10 ffff810004a64130 ffff810004a643a8 ffff8101fff81600
ffff8101feefb980 ffffffff8044bf77
Call Trace:<ffffffff8044bf77>{unix_stream_sendmsg+711}
<ffffffff804a0b9e>{schedule_timeout+30}
<ffffffff80145863>{prepare_to_wait+35}
<ffffffff8044c5dd>{unix_stream_recvmsg+621}
<ffffffff801459d0>{autoremove_wake_function+0}
<ffffffff8044bf77>{unix_stream_sendmsg+711}
<ffffffff801459d0>{autoremove_wake_function+0}
<ffffffff803d43c6>{sock_aio_read+278}
<ffffffff802f574d>{__up_read+29} <ffffffff802a25b8>{xfs_iunlock+104}
<ffffffff8016efad>{do_sync_read+173} <ffffffff801779c9>{cdev_get+9}
<ffffffff80177b42>{chrdev_open+338} <ffffffff8016e566>{dentry_open+230}
<ffffffff801459d0>{autoremove_wake_function+0}
<ffffffff8016e64e>{filp_open+62}
<ffffffff8016f0b4>{vfs_read+212} <ffffffff8016f383>{sys_read+83}
<ffffffff8010d4ca>{system_call+126}
sshd S ffff8101053d2b80 0 2015 2013 2016
(NOTLB)
ffff8101fdd03d88 0000000000000086 000000010000007b 0000000000000f48
ffff8101ff538a60 ffff810004a64f10 ffff810004a65188 ffffffff805c9a80
0000000000000000 0000000000000001
Call Trace:<ffffffff804a0b9e>{schedule_timeout+30}
<ffffffff8032de34>{tty_ldisc_deref+116}
<ffffffff8032f130>{tty_poll+176} <ffffffff80182477>{do_select+999}
<ffffffff80181fa0>{__pollwait+0} <ffffffff80182845>{sys_select+885}
<ffffffff8010d4ca>{system_call+126}
bash S 000000f805c8e919 0 2016 2015 2042
(NOTLB)
ffff8101fdd91e58 0000000000000082 0000000000000075 00000000000039af
ffff8101ff538a60 ffff8101053d8030 ffff8101053d82a8 ffffffff8012a6eb
0000000000000000 0000000000000001
Call Trace:<ffffffff8012a6eb>{try_to_wake_up+555}
<ffffffff80134375>{do_wait+3477}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff8010d4ca>{system_call+126}
sshd S 7fffffffffffffff 0 2022 1875 2024 2031 2013
(NOTLB)
ffff8101fdd17be8 0000000000000086 0000000100000075 0000000000000042
ffff810004a64820 ffff810004ae1640 ffff810004ae18b8 ffff8101ff6a3600
ffff8101fef4d680 ffffffff8044bf77
Call Trace:<ffffffff8044bf77>{unix_stream_sendmsg+711}
<ffffffff804a0b9e>{schedule_timeout+30}
<ffffffff80145863>{prepare_to_wait+35}
<ffffffff8044c5dd>{unix_stream_recvmsg+621}
<ffffffff801459d0>{autoremove_wake_function+0}
<ffffffff8044bf77>{unix_stream_sendmsg+711}
<ffffffff801459d0>{autoremove_wake_function+0}
<ffffffff803d43c6>{sock_aio_read+278}
<ffffffff802f574d>{__up_read+29} <ffffffff802a25b8>{xfs_iunlock+104}
<ffffffff8016efad>{do_sync_read+173} <ffffffff801779c9>{cdev_get+9}
<ffffffff80177b42>{chrdev_open+338} <ffffffff8016e566>{dentry_open+230}
<ffffffff801459d0>{autoremove_wake_function+0}
<ffffffff8016e64e>{filp_open+62}
<ffffffff8016f0b4>{vfs_read+212} <ffffffff8016f383>{sys_read+83}
<ffffffff8010d4ca>{system_call+126}
sshd S 00000101f1a03a59 0 2024 2022 2025
(NOTLB)
ffff8101fdda5d88 0000000000000082 0000000100000074 0000000000001df5
ffff810004ae0860 ffff810004a64820 ffff810004a64a98 ffffffff805c9a80
0000000000000000 0000000000000001
Call Trace:<ffffffff804a0b9e>{schedule_timeout+30}
<ffffffff8032de34>{tty_ldisc_deref+116}
<ffffffff8032f130>{tty_poll+176} <ffffffff80182477>{do_select+999}
<ffffffff80181fa0>{__pollwait+0} <ffffffff80182845>{sys_select+885}
<ffffffff8010d4ca>{system_call+126}
bash S 000000fcb9e5834b 0 2025 2024 2045
(NOTLB)
ffff8101fde17e58 0000000000000082 0000000000000074 00000000000029c0
ffff8100f56f8920 ffff8101053d8e10 ffff8101053d9088 ffffffff8012a6eb
0000000000000000 0000000000000001
Call Trace:<ffffffff8012a6eb>{try_to_wake_up+555}
<ffffffff80134375>{do_wait+3477}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff8010d4ca>{system_call+126}
sshd S 7fffffffffffffff 0 2031 1875 2033 2022
(NOTLB)
ffff8101fde59be8 0000000000000082 0000000100000075 0000000000000040
ffff810004ae0f50 ffff810004ae0170 ffff810004ae03e8 ffff8101ff6e1400
ffff8101feefb980 ffffffff8044bf77
Call Trace:<ffffffff8044bf77>{unix_stream_sendmsg+711}
<ffffffff804a0b9e>{schedule_timeout+30}
<ffffffff80145863>{prepare_to_wait+35}
<ffffffff8044c5dd>{unix_stream_recvmsg+621}
<ffffffff801459d0>{autoremove_wake_function+0}
<ffffffff8044bf77>{unix_stream_sendmsg+711}
<ffffffff801459d0>{autoremove_wake_function+0}
<ffffffff803d43c6>{sock_aio_read+278}
<ffffffff802f574d>{__up_read+29} <ffffffff802a25b8>{xfs_iunlock+104}
<ffffffff8016efad>{do_sync_read+173} <ffffffff801779c9>{cdev_get+9}
<ffffffff80177b42>{chrdev_open+338} <ffffffff8016e566>{dentry_open+230}
<ffffffff801459d0>{autoremove_wake_function+0}
<ffffffff8016e64e>{filp_open+62}
<ffffffff8016f0b4>{vfs_read+212} <ffffffff8016f383>{sys_read+83}
<ffffffff8010d4ca>{system_call+126}
sshd S 000000f36435fbf4 0 2033 2031 2034
(NOTLB)
ffff8101fde1dd88 0000000000000086 0000000100000286 00000000000009b5
ffff81000c010e10 ffff810004ae0f50 ffff810004ae11c8 0000000000000000
0000000000000000 0000000000000001
Call Trace:<ffffffff804a0b9e>{schedule_timeout+30}
<ffffffff8032de34>{tty_ldisc_deref+116}
<ffffffff8032f130>{tty_poll+176} <ffffffff80182477>{do_select+999}
<ffffffff80181fa0>{__pollwait+0} <ffffffff80182845>{sys_select+885}
<ffffffff8010d4ca>{system_call+126}
bash S 000000f36435ca31 0 2034 2033
(NOTLB)
ffff8101fdeadd78 0000000000000086 0000000000000000 0000000000073c59
ffffffff80512a80 ffff8101053a7580 ffff8101053a77f8 0000000000000001
ffff810100143c30 ffffffff8014d16c
Call Trace:<ffffffff8014d16c>{filemap_nopage+396}
<ffffffff804a0b9e>{schedule_timeout+30}
<ffffffff8014573c>{add_wait_queue+28} <ffffffff80333c67>{read_chan+1143}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff8032e286>{tty_read+214} <ffffffff8016f0a1>{vfs_read+193}
<ffffffff8016f383>{sys_read+83} <ffffffff8010d4ca>{system_call+126}
md5sum R running task 0 2040 1998 (NOTLB)
md5sum R running task 0 2041 2007 (NOTLB)
bonnie++ R running task 0 2042 2016 (NOTLB)
su S ffff8100f56f8a30 0 2045 2025 2046
(NOTLB)
ffff8100f5261e58 0000000000000086 000000000000007d 000000000000095c
ffff8101ff515540 ffff8100f56f8920 ffff8100f56f8b98 ffffffff8010c5bf
0000000000000000 0000000000000000
Call Trace:<ffffffff8010c5bf>{copy_thread+79}
<ffffffff80141eaf>{attach_pid+47}
<ffffffff80134375>{do_wait+3477} <ffffffff8012aab0>{finish_task_switch+64}
<ffffffff8013db31>{do_sigaction+577}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff8013dea1>{sys_rt_sigaction+113}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff8010d4ca>{system_call+126}
bash R running task 0 2046 2045 (NOTLB)
After killall -9 bonnie++:
ffffffff801459d0>{autoremove_wake_function+0} <ffffffff8010e083>{child_rip+8}
<ffffffff801588b0>{kswapd+0} <ffffffff8010e07b>{child_rip+0}
kswapd0 S 0000010e4d18709e 0 294 1 303 293
(L-TLB)
ffff8101ffe5bea8 0000000000000046 0000000000000073 0000000000021cf9
ffff8101ffeef6c0 ffff8101ffe58f10 ffff8101ffe59188 0000000000000000
0000000000000000 ffff8101ffe5bf10
Call Trace:<ffffffff801589d5>{kswapd+293}
<ffffffff801459d0>{autoremove_wake_function+0}
<ffffffff801459d0>{autoremove_wake_function+0} <ffffffff8010e083>{child_rip+8}
<ffffffff801588b0>{kswapd+0} <ffffffff8010e07b>{child_rip+0}
jfsIO S 0000000000000000 0 303 1 304 294
(L-TLB)
ffff8100048bdeb8 0000000000000046 0000000000000075 00000000000001ad
ffff81000c011500 ffff81000c0f7640 ffff81000c0f78b8 ffffffff805c03e0
ffffffff805c03e8 0000000000000296
Call Trace:<ffffffff8026878b>{jfsIOWait+283}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff8012c020>{default_wake_function+0} <ffffffff8010e083>{child_rip+8}
<ffffffff80268670>{jfsIOWait+0} <ffffffff8010e07b>{child_rip+0}
jfsCommit S ffffffff806ec6a8 0 304 1 305 303
(L-TLB)
ffff8101ffee5eb8 0000000000000046 0000000000000075 00000000000001ae
ffff81000c011500 ffff81000c0f6f50 ffff81000c0f71c8 ffffffff805c03e0
ffffffff805c03e8 0000000000000296
Call Trace:<ffffffff8026b811>{jfs_lazycommit+593}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff8012c020>{default_wake_function+0} <ffffffff8010e083>{child_rip+8}
<ffffffff8026b5c0>{jfs_lazycommit+0} <ffffffff8010e07b>{child_rip+0}
jfsCommit S 0000000000000000 0 305 1 306 304
(L-TLB)
ffff8100048bfeb8 0000000000000046 0000000000000075 000000000000012f
ffff81000c011500 ffff81000c0f6860 ffff81000c0f6ad8 ffffffff805c03e0
ffffffff805c03e8 0000000000000296
Call Trace:<ffffffff8026b811>{jfs_lazycommit+593}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff8012c020>{default_wake_function+0} <ffffffff8010e083>{child_rip+8}
<ffffffff8026b5c0>{jfs_lazycommit+0} <ffffffff8010e07b>{child_rip+0}
jfsSync S 0000000000000001 0 306 1 311 305
(L-TLB)
ffff8101ffee7ea8 0000000000000046 0000000000000075 0000000000000183
ffff81000c011500 ffff81000c0f6170 ffff81000c0f63e8 ffffffff805c03e0
ffffffff805c03e8 0000000000000296
Call Trace:<ffffffff8026bc88>{jfs_sync+600}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff8012c020>{default_wake_function+0} <ffffffff8010e083>{child_rip+8}
<ffffffff8026ba30>{jfs_sync+0} <ffffffff8010e07b>{child_rip+0}
xfslogd/0 S ffff81000c0c3e00 0 307 13 308 296
(L-TLB)
ffff8101ffee9e58 0000000000000046 0000000000000071 000000000000007c
ffff8100048c0f90 ffff8100048c1680 ffff8100048c18f8 0000000000000000
0000000000000000 0000000000010000
Call Trace:<ffffffff801453f0>{keventd_create_kthread+0}
<ffffffff80141150>{worker_thread+0}
<ffffffff80141281>{worker_thread+305}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff801453f0>{keventd_create_kthread+0}
<ffffffff80141150>{worker_thread+0}
<ffffffff801453f0>{keventd_create_kthread+0}
<ffffffff801453a9>{kthread+217} <ffffffff8010e083>{child_rip+8}
<ffffffff801453f0>{keventd_create_kthread+0} <ffffffff801452d0>{kthread+0}
<ffffffff8010e07b>{child_rip+0}
xfslogd/1 S ffff8100048e79b0 0 308 13 309 307
(L-TLB)
ffff8100048c3e58 0000000000000046 000000010000007d 0000000000000378
ffff8101ffeee1f0 ffff8100048c0f90 ffff8100048c1208 0000000000000001
0000000000000096 0000000000000003
Call Trace:<ffffffff8012c0e3>{__wake_up+67}
<ffffffff802c4560>{pagebuf_iodone_work+0}
<ffffffff802c4560>{pagebuf_iodone_work+0}
<ffffffff80141281>{worker_thread+305}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff801453f0>{keventd_create_kthread+0}
<ffffffff80141150>{worker_thread+0}
<ffffffff801453f0>{keventd_create_kthread+0} <ffffffff801453a9>{kthread+217}
<ffffffff8010e083>{child_rip+8} <ffffffff801453f0>{keventd_create_kthread+0}
<ffffffff801452d0>{kthread+0} <ffffffff8010e07b>{child_rip+0}
xfsdatad/0 S ffff81000c0c3c00 0 309 13 310 308
(L-TLB)
ffff8101ffeebe58 0000000000000046 0000000000000071 0000000000000064
ffff8100048c01b0 ffff8100048c08a0 ffff8100048c0b18 0000000000000000
0000000000000000 0000000000010000
Call Trace:<ffffffff801453f0>{keventd_create_kthread+0}
<ffffffff80141150>{worker_thread+0}
<ffffffff80141281>{worker_thread+305}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff801453f0>{keventd_create_kthread+0}
<ffffffff80141150>{worker_thread+0}
<ffffffff801453f0>{keventd_create_kthread+0}
<ffffffff801453a9>{kthread+217} <ffffffff8010e083>{child_rip+8}
<ffffffff801453f0>{keventd_create_kthread+0} <ffffffff801452d0>{kthread+0}
<ffffffff8010e07b>{child_rip+0}
xfsdatad/1 S 00000000018038d0 0 310 13 309
(L-TLB)
ffff8101ffeede58 0000000000000046 0000000100000000 0000000000000125
ffff81000c010e10 ffff8100048c01b0 ffff8100048c0428 0000000000000001
0000000000000000 0000000000010000
Call Trace:<ffffffff801453f0>{keventd_create_kthread+0}
<ffffffff80141150>{worker_thread+0}
<ffffffff80141281>{worker_thread+305}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff801453f0>{keventd_create_kthread+0}
<ffffffff80141150>{worker_thread+0}
<ffffffff801453f0>{keventd_create_kthread+0}
<ffffffff801453a9>{kthread+217} <ffffffff8010e083>{child_rip+8}
<ffffffff801453f0>{keventd_create_kthread+0} <ffffffff801452d0>{kthread+0}
<ffffffff8010e07b>{child_rip+0}
xfsbufd S 00000001000d6cfc 0 311 1 387 306
(L-TLB)
ffff8100048c7e98 0000000000000046 000000000000007d 000000000000005e
ffff8101ff515540 ffff8101ffeef6c0 ffff8101ffeef938 0000000000000010
0000000000000292 0000000000000292
Call Trace:<ffffffff8013921d>{__mod_timer+317}
<ffffffff804a0c26>{schedule_timeout+166}
<ffffffff80139de0>{process_timeout+0} <ffffffff802c5a99>{pagebuf_daemon+153}
<ffffffff8010e083>{child_rip+8} <ffffffff801182e0>{flat_send_IPI_mask+0}
<ffffffff802c5a00>{pagebuf_daemon+0} <ffffffff8010e07b>{child_rip+0}
kseriod S 0000000002b6872e 0 387 1 460 311
(L-TLB)
ffff8100048edeb8 0000000000000046 0000000000000077 00000000000001f8
ffff8100f5795580 ffff8101ffeeefd0 ffff8101ffeef248 0000000000001158
ffff8100f5795580 ffff8101ffeeefd0
Call Trace:<ffffffff80354ce7>{serio_thread+455}
<ffffffff801459d0>{autoremove_wake_function+0}
<ffffffff801459d0>{autoremove_wake_function+0} <ffffffff8010e083>{child_rip+8}
<ffffffff80354b20>{serio_thread+0} <ffffffff8010e07b>{child_rip+0}
xfssyncd S 00000001000dcfe4 0 460 1 675 387
(L-TLB)
ffff8101ffc79e88 0000000000000046 000000010000007d 0000000000000461
ffff8101ffeee1f0 ffff8100f56f9700 ffff8100f56f9978 0000000000000000
ffff8101051515d8 0000000000000296
Call Trace:<ffffffff8013921d>{__mod_timer+317}
<ffffffff804a0c26>{schedule_timeout+166}
<ffffffff80139de0>{process_timeout+0} <ffffffff802cac79>{xfssyncd+153}
<ffffffff802cb1e0>{linvfs_fill_super+0} <ffffffff8010e083>{child_rip+8}
<ffffffff802cb1e0>{linvfs_fill_super+0} <ffffffff802b9cd0>{xfs_root+0}
<ffffffff802cabe0>{xfssyncd+0} <ffffffff8010e07b>{child_rip+0}
xfssyncd S 00000001000d98d8 0 675 1 676 460
(L-TLB)
ffff8101ff295e88 0000000000000046 000000010000007d 0000000000000417
ffff8101ffeee1f0 ffff8101ff539150 ffff8101ff5393c8 0000000000000000
ffff81010510ac98 0000000000000296
Call Trace:<ffffffff8013921d>{__mod_timer+317}
<ffffffff804a0c26>{schedule_timeout+166}
<ffffffff80139de0>{process_timeout+0} <ffffffff802cac79>{xfssyncd+153}
<ffffffff802cb1e0>{linvfs_fill_super+0} <ffffffff8010e083>{child_rip+8}
<ffffffff802cb1e0>{linvfs_fill_super+0} <ffffffff802b9cd0>{xfs_root+0}
<ffffffff802cabe0>{xfssyncd+0} <ffffffff8010e07b>{child_rip+0}
xfssyncd S 00000001000d99e8 0 676 1 1512 675
(L-TLB)
ffff8101ff2b7e88 0000000000000046 000000010000007d 00000000000003ef
ffff8101ffeee1f0 ffff8101053c03b0 ffff8101053c0628 0000000000000000
ffff81010510a5d8 0000000000000296
Call Trace:<ffffffff8013921d>{__mod_timer+317}
<ffffffff804a0c26>{schedule_timeout+166}
<ffffffff80139de0>{process_timeout+0} <ffffffff802cac79>{xfssyncd+153}
<ffffffff802cb1e0>{linvfs_fill_super+0} <ffffffff8010e083>{child_rip+8}
<ffffffff802cb1e0>{linvfs_fill_super+0} <ffffffff802b9cd0>{xfs_root+0}
<ffffffff802cabe0>{xfssyncd+0} <ffffffff8010e07b>{child_rip+0}
syslog-ng R running task 0 1512 1 1728 676 (NOTLB)
ntpd S ffff810004929380 0 1728 1 1822 1512
(NOTLB)
ffff8101febc1d88 0000000000000086 000000010000007d 0000000000001127
ffff8101ffeee1f0 ffff8101053d71d0 ffff8101053d7448 ffff8101053d71d0
00000010fd1c6128 0000000000000286
Call Trace:<ffffffff804a0b9e>{schedule_timeout+30}
<ffffffff8014573c>{add_wait_queue+28}
<ffffffff803dabf3>{datagram_poll+35} <ffffffff80413b2f>{udp_poll+15}
<ffffffff80182477>{do_select+999} <ffffffff80181fa0>{__pollwait+0}
<ffffffff80182845>{sys_select+885} <ffffffff8010d2f9>{sys_rt_sigreturn+553}
<ffffffff8010d4ca>{system_call+126}
master S 0000010f9dd79b07 0 1822 1 1839 1875 1728
(NOTLB)
ffff8101fe0d5d88 0000000000000086 0000000100000074 00000000000019b2
ffff8100f56f9010 ffff8101ff538370 ffff8101ff5385e8 0000000000000282
0000000100000000 0000000000000296
Call Trace:<ffffffff8013921d>{__mod_timer+317}
<ffffffff804a0c26>{schedule_timeout+166}
<ffffffff80139de0>{process_timeout+0} <ffffffff80182477>{do_select+999}
<ffffffff80181fa0>{__pollwait+0} <ffffffff8012c0e3>{__wake_up+67}
<ffffffff80182845>{sys_select+885} <ffffffff8010d4ca>{system_call+126}
pickup S 00000001000ec74c 0 1839 1822 1840
(NOTLB)
ffff8101fe5efd88 0000000000000082 000000010000007d 00000000000000a4
ffff8101ffeee1f0 ffff8100f56f9010 ffff8100f56f9288 0000000000000000
00000000000000d0 0000000000000296
Call Trace:<ffffffff8013921d>{__mod_timer+317}
<ffffffff804a0c26>{schedule_timeout+166}
<ffffffff80139de0>{process_timeout+0} <ffffffff80182477>{do_select+999}
<ffffffff80181fa0>{__pollwait+0} <ffffffff80182845>{sys_select+885}
<ffffffff8010d4ca>{system_call+126}
qmgr S 000000ef4b3774bc 0 1840 1822 1839
(NOTLB)
ffff8101fe123d88 0000000000000082 0000000100000286 0000000000001609
ffff81000c010e10 ffff8101053d78c0 ffff8101053d7b38 0000000000000000
00000000000000d0 0000000000000296
Call Trace:<ffffffff8013921d>{__mod_timer+317}
<ffffffff804a0c26>{schedule_timeout+166}
<ffffffff80139de0>{process_timeout+0} <ffffffff80182477>{do_select+999}
<ffffffff80181fa0>{__pollwait+0} <ffffffff80182845>{sys_select+885}
<ffffffff8010d4ca>{system_call+126}
sshd S ffff8101fdc0bc80 0 1875 1 1995 1915 1822
(NOTLB)
ffff8101fdc3bd88 0000000000000082 0000000100000074 0000000000000717
ffff810004ae0170 ffff8101053a67a0 ffff8101053a6a18 0000000000000000
00000000000000d0 0000000000000286
Call Trace:<ffffffff804a0b9e>{schedule_timeout+30}
<ffffffff80150bce>{__get_free_pages+14}
<ffffffff8014573c>{add_wait_queue+28} <ffffffff80182477>{do_select+999}
<ffffffff80181fa0>{__pollwait+0} <ffffffff80182845>{sys_select+885}
<ffffffff8010d4ca>{system_call+126}
cron S 00000001000d9882 0 1915 1 1932 1875
(NOTLB)
ffff8101fe2d5ee8 0000000000000082 000000010000007d 0000000000001a70
ffff8101ffeee1f0 ffff8101ff514760 ffff8101ff5149d8 00000000422989b1
0000000000000000 0000000000000292
Call Trace:<ffffffff8013921d>{__mod_timer+317}
<ffffffff804a0c26>{schedule_timeout+166}
<ffffffff80139de0>{process_timeout+0} <ffffffff80139ed2>{sys_nanosleep+194}
<ffffffff8010d4ca>{system_call+126}
agetty S ffff8101ff314000 0 1932 1 1934 1915
(NOTLB)
ffff81010520dd78 0000000000000082 0000000000000075 00000000000066f3
ffff8101ff539840 ffff8101ffeee8e0 ffff8101ffeeeb58 0000000000000001
00000000000000ff ffffffff8032de34
Call Trace:<ffffffff8032de34>{tty_ldisc_deref+116}
<ffffffff804a0b9e>{schedule_timeout+30}
<ffffffff80130949>{release_console_sem+393}
<ffffffff8014573c>{add_wait_queue+28}
<ffffffff80333c67>{read_chan+1143} <ffffffff8012c020>{default_wake_function+0}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff8032de34>{tty_ldisc_deref+116}
<ffffffff8032e286>{tty_read+214} <ffffffff8016f0a1>{vfs_read+193}
<ffffffff8016f383>{sys_read+83} <ffffffff8010d4ca>{system_call+126}
agetty S ffff8101fe363000 0 1934 1 1935 1932
(NOTLB)
ffff8101fefa7d78 0000000000000082 0000000100000075 0000000000003c4c
ffff8101053a60b0 ffff8100f56f8230 ffff8100f56f84a8 0000000000000001
00000000000000ff ffffffff8032de34
Call Trace:<ffffffff8032de34>{tty_ldisc_deref+116}
<ffffffff804a0b9e>{schedule_timeout+30}
<ffffffff80130949>{release_console_sem+393}
<ffffffff8014573c>{add_wait_queue+28}
<ffffffff80333c67>{read_chan+1143} <ffffffff8012c020>{default_wake_function+0}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff8032de34>{tty_ldisc_deref+116}
<ffffffff8032e286>{tty_read+214} <ffffffff8016f0a1>{vfs_read+193}
<ffffffff8016f383>{sys_read+83} <ffffffff8010d4ca>{system_call+126}
agetty S ffff8101fe9c1000 0 1935 1 1936 1934
(NOTLB)
ffff8101fe953d78 0000000000000082 0000000000000075 0000000000004254
ffff8101ffeee8e0 ffff8101053d8720 ffff8101053d8998 0000000000000001
00000000000000ff ffffffff8032de34
Call Trace:<ffffffff8032de34>{tty_ldisc_deref+116}
<ffffffff804a0b9e>{schedule_timeout+30}
<ffffffff80130949>{release_console_sem+393}
<ffffffff8014573c>{add_wait_queue+28}
<ffffffff80333c67>{read_chan+1143} <ffffffff8012c020>{default_wake_function+0}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff8032de34>{tty_ldisc_deref+116}
<ffffffff8032e286>{tty_read+214} <ffffffff8016f0a1>{vfs_read+193}
<ffffffff8016f383>{sys_read+83} <ffffffff8010d4ca>{system_call+126}
agetty S 00000006ce68f5ba 0 1936 1 1937 1935
(NOTLB)
ffff8101fe8c5d78 0000000000000082 0000000100000074 0000000000002e90
ffff8101053a6e90 ffff8101053a60b0 ffff8101053a6328 0000000000000001
00000000000000ff ffffffff8032de34
Call Trace:<ffffffff8032de34>{tty_ldisc_deref+116}
<ffffffff804a0b9e>{schedule_timeout+30}
<ffffffff80130949>{release_console_sem+393}
<ffffffff8014573c>{add_wait_queue+28}
<ffffffff80333c67>{read_chan+1143} <ffffffff8012c020>{default_wake_function+0}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff8032de34>{tty_ldisc_deref+116}
<ffffffff8032e286>{tty_read+214} <ffffffff8016f0a1>{vfs_read+193}
<ffffffff8016f383>{sys_read+83} <ffffffff8010d4ca>{system_call+126}
agetty S 00000006ce6ced34 0 1937 1 1938 1936
(NOTLB)
ffff8101fe95dd78 0000000000000086 0000000100000004 00000000000028c8
ffff81000c010e10 ffff8101053a6e90 ffff8101053a7108 0000000000000001
00000000000000ff ffffffff8032de34
Call Trace:<ffffffff8032de34>{tty_ldisc_deref+116}
<ffffffff804a0b9e>{schedule_timeout+30}
<ffffffff80130949>{release_console_sem+393}
<ffffffff8014573c>{add_wait_queue+28}
<ffffffff80333c67>{read_chan+1143} <ffffffff8012c020>{default_wake_function+0}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff8032de34>{tty_ldisc_deref+116}
<ffffffff8032e286>{tty_read+214} <ffffffff8016f0a1>{vfs_read+193}
<ffffffff8016f383>{sys_read+83} <ffffffff8010d4ca>{system_call+126}
agetty S 00000006ce79c7c7 0 1938 1 1937
(NOTLB)
ffff8101fe903d78 0000000000000086 0000000000000005 0000000000002440
ffffffff80512a80 ffff8101ff539840 ffff8101ff539ab8 0000000000000000
00000000000000ff ffffffff8032de34
Call Trace:<ffffffff8032de34>{tty_ldisc_deref+116}
<ffffffff804a0b9e>{schedule_timeout+30}
<ffffffff80130949>{release_console_sem+393}
<ffffffff8014573c>{add_wait_queue+28}
<ffffffff80333c67>{read_chan+1143} <ffffffff8012c020>{default_wake_function+0}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff8032de34>{tty_ldisc_deref+116}
<ffffffff8032e286>{tty_read+214} <ffffffff8016f0a1>{vfs_read+193}
<ffffffff8016f383>{sys_read+83} <ffffffff8010d4ca>{system_call+126}
sshd S 7fffffffffffffff 0 1995 1875 1997 2004
(NOTLB)
ffff8101fe391be8 0000000000000086 0000000100000075 000000000000003f
ffff8101ff514e50 ffff8101ff514070 ffff8101ff5142e8 ffff8101ff6a3000
ffff8100f550c4c0 ffffffff8044bf77
Call Trace:<ffffffff8044bf77>{unix_stream_sendmsg+711}
<ffffffff804a0b9e>{schedule_timeout+30}
<ffffffff80145863>{prepare_to_wait+35}
<ffffffff8044c5dd>{unix_stream_recvmsg+621}
<ffffffff801459d0>{autoremove_wake_function+0}
<ffffffff8044bf77>{unix_stream_sendmsg+711}
<ffffffff801459d0>{autoremove_wake_function+0}
<ffffffff803d43c6>{sock_aio_read+278}
<ffffffff802f574d>{__up_read+29} <ffffffff802a25b8>{xfs_iunlock+104}
<ffffffff8016efad>{do_sync_read+173} <ffffffff801779c9>{cdev_get+9}
<ffffffff80177b42>{chrdev_open+338} <ffffffff8016e566>{dentry_open+230}
<ffffffff801459d0>{autoremove_wake_function+0}
<ffffffff8016e64e>{filp_open+62}
<ffffffff8016f0b4>{vfs_read+212} <ffffffff8016f383>{sys_read+83}
<ffffffff8010d4ca>{system_call+126}
sshd S 000000f4d37eed09 0 1997 1995 1998
(NOTLB)
ffff8101fe2edd88 0000000000000082 0000000100000073 0000000000000a23
ffff8101053d6ae0 ffff8101ff514e50 ffff8101ff5150c8 ffffffff805c9a80
0000000000000000 0000000000000001
Call Trace:<ffffffff804a0b9e>{schedule_timeout+30}
<ffffffff8032de34>{tty_ldisc_deref+116}
<ffffffff8032f130>{tty_poll+176} <ffffffff80182477>{do_select+999}
<ffffffff80181fa0>{__pollwait+0} <ffffffff80182845>{sys_select+885}
<ffffffff8010d4ca>{system_call+126}
bash S 000000f4d3886297 0 1998 1997 2040
(NOTLB)
ffff8101fdcade58 0000000000000082 0000000100000074 0000000000003b0c
ffff8101ffeee1f0 ffff8101053d6ae0 ffff8101053d6d58 ffffffff8012a6eb
0000000000000000 0000000000000001
Call Trace:<ffffffff8012a6eb>{try_to_wake_up+555}
<ffffffff80134375>{do_wait+3477}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff8010d4ca>{system_call+126}
sshd S 7fffffffffffffff 0 2004 1875 2006 2013 1995
(NOTLB)
ffff8101fdc4bbe8 0000000000000086 0000000100000075 000000000000003e
ffff8101053d63f0 ffff810004a65600 ffff810004a65878 ffff8101ff6e1c00
ffff8101feed7a80 ffffffff8044bf77
Call Trace:<ffffffff8044bf77>{unix_stream_sendmsg+711}
<ffffffff804a0b9e>{schedule_timeout+30}
<ffffffff80145863>{prepare_to_wait+35}
<ffffffff8044c5dd>{unix_stream_recvmsg+621}
<ffffffff801459d0>{autoremove_wake_function+0}
<ffffffff8044bf77>{unix_stream_sendmsg+711}
<ffffffff801459d0>{autoremove_wake_function+0}
<ffffffff803d43c6>{sock_aio_read+278}
<ffffffff802f574d>{__up_read+29} <ffffffff802a25b8>{xfs_iunlock+104}
<ffffffff8016efad>{do_sync_read+173} <ffffffff801779c9>{cdev_get+9}
<ffffffff80177b42>{chrdev_open+338} <ffffffff8016e566>{dentry_open+230}
<ffffffff801459d0>{autoremove_wake_function+0}
<ffffffff8016e64e>{filp_open+62}
<ffffffff8016f0b4>{vfs_read+212} <ffffffff8016f383>{sys_read+83}
<ffffffff8010d4ca>{system_call+126}
sshd S ffff8101053d2580 0 2006 2004 2007
(NOTLB)
ffff8101fdca7d88 0000000000000086 000000010000007d 0000000000000e88
ffff8101ffeee1f0 ffff8101053d63f0 ffff8101053d6668 ffffffff805c9a80
0000000000000000 0000000000000001
Call Trace:<ffffffff804a0b9e>{schedule_timeout+30}
<ffffffff8032de34>{tty_ldisc_deref+116}
<ffffffff8032f130>{tty_poll+176} <ffffffff80182477>{do_select+999}
<ffffffff80181fa0>{__pollwait+0} <ffffffff80182845>{sys_select+885}
<ffffffff8010d4ca>{system_call+126}
bash S 000000f5d3de228e 0 2007 2006 2041
(NOTLB)
ffff8101fdd0be58 0000000000000082 0000000000000075 000000000000366c
ffff8101ff515540 ffff8101053d9500 ffff8101053d9778 ffffffff8012a6eb
0000000000000000 0000000000000001
Call Trace:<ffffffff8012a6eb>{try_to_wake_up+555}
<ffffffff80134375>{do_wait+3477}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff8010d4ca>{system_call+126}
sshd S 7fffffffffffffff 0 2013 1875 2015 2022 2004
(NOTLB)
ffff8101fdc8bbe8 0000000000000082 0000000100000075 000000000000004a
ffff810004a64f10 ffff810004a64130 ffff810004a643a8 ffff8101fff81600
ffff8101feefb980 ffffffff8044bf77
Call Trace:<ffffffff8044bf77>{unix_stream_sendmsg+711}
<ffffffff804a0b9e>{schedule_timeout+30}
<ffffffff80145863>{prepare_to_wait+35}
<ffffffff8044c5dd>{unix_stream_recvmsg+621}
<ffffffff801459d0>{autoremove_wake_function+0}
<ffffffff8044bf77>{unix_stream_sendmsg+711}
<ffffffff801459d0>{autoremove_wake_function+0}
<ffffffff803d43c6>{sock_aio_read+278}
<ffffffff802f574d>{__up_read+29} <ffffffff802a25b8>{xfs_iunlock+104}
<ffffffff8016efad>{do_sync_read+173} <ffffffff801779c9>{cdev_get+9}
<ffffffff80177b42>{chrdev_open+338} <ffffffff8016e566>{dentry_open+230}
<ffffffff801459d0>{autoremove_wake_function+0}
<ffffffff8016e64e>{filp_open+62}
<ffffffff8016f0b4>{vfs_read+212} <ffffffff8016f383>{sys_read+83}
<ffffffff8010d4ca>{system_call+126}
sshd S ffff8101053d2b80 0 2015 2013 2016
(NOTLB)
ffff8101fdd03d88 0000000000000086 000000010000007d 00000000000028ce
ffff8101ffeee1f0 ffff810004a64f10 ffff810004a65188 ffffffff805c9a80
0000000000000000 0000000000000001
Call Trace:<ffffffff804a0b9e>{schedule_timeout+30}
<ffffffff8032de34>{tty_ldisc_deref+116}
<ffffffff8032f130>{tty_poll+176} <ffffffff80182477>{do_select+999}
<ffffffff80181fa0>{__pollwait+0} <ffffffff80182845>{sys_select+885}
<ffffffff8010d4ca>{system_call+126}
bash S 000000f805c8e919 0 2016 2015 2042
(NOTLB)
ffff8101fdd91e58 0000000000000082 0000000000000075 00000000000039af
ffff8101ff538a60 ffff8101053d8030 ffff8101053d82a8 ffffffff8012a6eb
0000000000000000 0000000000000001
Call Trace:<ffffffff8012a6eb>{try_to_wake_up+555}
<ffffffff80134375>{do_wait+3477}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff8010d4ca>{system_call+126}
sshd S 7fffffffffffffff 0 2022 1875 2024 2031 2013
(NOTLB)
ffff8101fdd17be8 0000000000000086 0000000100000075 0000000000000042
ffff810004a64820 ffff810004ae1640 ffff810004ae18b8 ffff8101ff6a3600
ffff8101fef4d680 ffffffff8044bf77
Call Trace:<ffffffff8044bf77>{unix_stream_sendmsg+711}
<ffffffff804a0b9e>{schedule_timeout+30}
<ffffffff80145863>{prepare_to_wait+35}
<ffffffff8044c5dd>{unix_stream_recvmsg+621}
<ffffffff801459d0>{autoremove_wake_function+0}
<ffffffff8044bf77>{unix_stream_sendmsg+711}
<ffffffff801459d0>{autoremove_wake_function+0}
<ffffffff803d43c6>{sock_aio_read+278}
<ffffffff802f574d>{__up_read+29} <ffffffff802a25b8>{xfs_iunlock+104}
<ffffffff8016efad>{do_sync_read+173} <ffffffff801779c9>{cdev_get+9}
<ffffffff80177b42>{chrdev_open+338} <ffffffff8016e566>{dentry_open+230}
<ffffffff801459d0>{autoremove_wake_function+0}
<ffffffff8016e64e>{filp_open+62}
<ffffffff8016f0b4>{vfs_read+212} <ffffffff8016f383>{sys_read+83}
<ffffffff8010d4ca>{system_call+126}
sshd S 00000112092e5643 0 2024 2022 2025
(NOTLB)
ffff8101fdda5d88 0000000000000082 0000000100000074 0000000000001db3
ffff810004ae0860 ffff810004a64820 ffff810004a64a98 ffffffff805c9a80
0000000000000000 0000000000000001
Call Trace:<ffffffff804a0b9e>{schedule_timeout+30}
<ffffffff8032de34>{tty_ldisc_deref+116}
<ffffffff8032f130>{tty_poll+176} <ffffffff80182477>{do_select+999}
<ffffffff80181fa0>{__pollwait+0} <ffffffff80182845>{sys_select+885}
<ffffffff8010d4ca>{system_call+126}
bash S 000000fcb9e5834b 0 2025 2024 2045
(NOTLB)
ffff8101fde17e58 0000000000000082 0000000000000074 00000000000029c0
ffff8100f56f8920 ffff8101053d8e10 ffff8101053d9088 ffffffff8012a6eb
0000000000000000 0000000000000001
Call Trace:<ffffffff8012a6eb>{try_to_wake_up+555}
<ffffffff80134375>{do_wait+3477}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff8010d4ca>{system_call+126}
sshd S 7fffffffffffffff 0 2031 1875 2033 2022
(NOTLB)
ffff8101fde59be8 0000000000000082 0000000100000075 0000000000000040
ffff810004ae0f50 ffff810004ae0170 ffff810004ae03e8 ffff8101ff6e1400
ffff8101feefb980 ffffffff8044bf77
Call Trace:<ffffffff8044bf77>{unix_stream_sendmsg+711}
<ffffffff804a0b9e>{schedule_timeout+30}
<ffffffff80145863>{prepare_to_wait+35}
<ffffffff8044c5dd>{unix_stream_recvmsg+621}
<ffffffff801459d0>{autoremove_wake_function+0}
<ffffffff8044bf77>{unix_stream_sendmsg+711}
<ffffffff801459d0>{autoremove_wake_function+0}
<ffffffff803d43c6>{sock_aio_read+278}
<ffffffff802f574d>{__up_read+29} <ffffffff802a25b8>{xfs_iunlock+104}
<ffffffff8016efad>{do_sync_read+173} <ffffffff801779c9>{cdev_get+9}
<ffffffff80177b42>{chrdev_open+338} <ffffffff8016e566>{dentry_open+230}
<ffffffff801459d0>{autoremove_wake_function+0}
<ffffffff8016e64e>{filp_open+62}
<ffffffff8016f0b4>{vfs_read+212} <ffffffff8016f383>{sys_read+83}
<ffffffff8010d4ca>{system_call+126}
sshd S ffff8101fdd465c0 0 2033 2031 2034
(NOTLB)
ffff8101fde1dd88 0000000000000086 000000010000007d 0000000000000da6
ffff8101ffeee1f0 ffff810004ae0f50 ffff810004ae11c8 ffffffff805c9a80
0000000000000000 0000000000000001
Call Trace:<ffffffff804a0b9e>{schedule_timeout+30}
<ffffffff8032de34>{tty_ldisc_deref+116}
<ffffffff8032f130>{tty_poll+176} <ffffffff80182477>{do_select+999}
<ffffffff80181fa0>{__pollwait+0} <ffffffff80182845>{sys_select+885}
<ffffffff8010d4ca>{system_call+126}
bash S ffff8101fde7b000 0 2034 2033
(NOTLB)
ffff8101fdeadd78 0000000000000086 000000000000007d 000000000000fc66
ffff8101ff515540 ffff8101053a7580 ffff8101053a77f8 ffff8101fde7b018
0000000000000096 ffffffff8032de34
Call Trace:<ffffffff8032de34>{tty_ldisc_deref+116}
<ffffffff804a0b9e>{schedule_timeout+30}
<ffffffff8014573c>{add_wait_queue+28} <ffffffff80333c67>{read_chan+1143}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff8032de34>{tty_ldisc_deref+116} <ffffffff8032e286>{tty_read+214}
<ffffffff8016f0a1>{vfs_read+193} <ffffffff8016f383>{sys_read+83}
<ffffffff8010d4ca>{system_call+126}
md5sum R running task 0 2040 1998 (NOTLB)
md5sum R running task 0 2041 2007 (NOTLB)
bonnie++ D ffff81010383f820 0 2042 2016
(NOTLB)
ffff8100f51d7248 0000000000000082 000000010000007d 000000000003bd42
ffff8101ffeee1f0 ffff8101ff538a60 ffff8101ff538cd8 0000000000000292
0000000000000292 0000000000000282
Call Trace:<ffffffff804a0b11>{io_schedule+49}
<ffffffff80365a8e>{get_request_wait+174}
<ffffffff801459d0>{autoremove_wake_function+0}
<ffffffff801459d0>{autoremove_wake_function+0}
<ffffffff8036697c>{__make_request+812}
<ffffffff80366f82>{generic_make_request+546}
<ffffffff801459d0>{autoremove_wake_function+0}
<ffffffff8014f1e4>{mempool_alloc+164}
<ffffffff801459d0>{autoremove_wake_function+0}
<ffffffff801459d0>{autoremove_wake_function+0}
<ffffffff80367088>{submit_bio+232} <ffffffff80173ee7>{bio_alloc+359}
<ffffffff804a1355>{_spin_unlock_irqrestore+5}
<ffffffff80171bbb>{submit_bh+283}
<ffffffff802c24d1>{xfs_submit_page+209}
<ffffffff802c220b>{xfs_map_at_offset+123}
<ffffffff802c2751>{xfs_convert_page+545} <ffffffff80367088>{submit_bio+232}
<ffffffff8014c415>{find_trylock_page+85}
<ffffffff802c302d>{xfs_page_state_convert+1501}
<ffffffff80285890>{xfs_bmbt_get_startblock+0}
<ffffffff802858d9>{xfs_bmbt_get_state+9}
<ffffffff802c35c8>{linvfs_writepage+184}
<ffffffff80192ea7>{mpage_writepages+535}
<ffffffff802c3510>{linvfs_writepage+0}
<ffffffff80191afb>{__writeback_single_inode+491}
<ffffffff8019226c>{sync_sb_inodes+508}
<ffffffff80192530>{writeback_inodes+144}
<ffffffff80151d61>{balance_dirty_pages_ratelimited+225}
<ffffffff8014de48>{generic_file_buffered_write+1160}
<ffffffff80135415>{current_fs_time+85} <ffffffff802f5630>{__up_write+48}
<ffffffff802c9f2e>{xfs_write+1854} <ffffffff8015069e>{buffered_rmqueue+654}
<ffffffff802c5e18>{linvfs_aio_write+104} <ffffffff8016f1bd>{do_sync_write+173}
<ffffffff8011b89c>{do_page_fault+1276}
<ffffffff801459d0>{autoremove_wake_function+0}
<ffffffff8019d9de>{dnotify_parent+46} <ffffffff8016f2b4>{vfs_write+196}
<ffffffff8016f413>{sys_write+83} <ffffffff8010d4ca>{system_call+126}
su S ffff8100f56f8a30 0 2045 2025 2046
(NOTLB)
ffff8100f5261e58 0000000000000086 000000000000007d 000000000000095c
ffff8101ff515540 ffff8100f56f8920 ffff8100f56f8b98 ffffffff8010c5bf
0000000000000000 0000000000000000
Call Trace:<ffffffff8010c5bf>{copy_thread+79}
<ffffffff80141eaf>{attach_pid+47}
<ffffffff80134375>{do_wait+3477} <ffffffff8012aab0>{finish_task_switch+64}
<ffffffff8013db31>{do_sigaction+577}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff8013dea1>{sys_rt_sigaction+113}
<ffffffff8012c020>{default_wake_function+0}
<ffffffff8010d4ca>{system_call+126}
bash R running task 0 2046 2045 (NOTLB)
--
Simone Piunno, chief architect
Wireless Solutions SPA - DADA group
Europe HQ, via Castiglione 25 Bologna
web:http://www.dada-ws.com tel:+39512966811 fax:+39512966800
On Fri, Mar 11 2005, Simone Piunno wrote:
> Alle 14:29, venerd? 11 marzo 2005, Baruch Even ha scritto:
>
> > echo t > /proc/sysrq-trigger
>
> Before killing bonnie:
I'm guessing your problem is that bonnie dirtied tons of data before you
killed it, so it has to flush it out. If you run out of request entries,
you will get to sleep uninterruptibly on those while the data is
flushing. I don't see anything unexpected here, it is normal behaviour.
> bonnie++ D ffff81010383f820 0 2042 2016
> (NOTLB)
> ffff8100f51d7248 0000000000000082 000000010000007d 000000000003bd42
> ffff8101ffeee1f0 ffff8101ff538a60 ffff8101ff538cd8 0000000000000292
> 0000000000000292 0000000000000282
> Call Trace:<ffffffff804a0b11>{io_schedule+49}
> <ffffffff80365a8e>{get_request_wait+174}
> <ffffffff801459d0>{autoremove_wake_function+0}
> <ffffffff801459d0>{autoremove_wake_function+0}
> <ffffffff8036697c>{__make_request+812}
This is what is happening here, after you kill it.
--
Jens Axboe
Alle 16:16, venerd? 11 marzo 2005, Jens Axboe ha scritto:
> On Fri, Mar 11 2005, Simone Piunno wrote:
> > Alle 14:29, venerd? 11 marzo 2005, Baruch Even ha scritto:
> > > echo t > /proc/sysrq-trigger
> >
> > Before killing bonnie:
>
> I'm guessing your problem is that bonnie dirtied tons of data before you
> killed it, so it has to flush it out. If you run out of request entries,
> you will get to sleep uninterruptibly on those while the data is
> flushing. I don't see anything unexpected here, it is normal behaviour.
The real issue here is that under heavy I/O activity (bonnie is a good way to
emphasize the concept), even caused by only one task, the system becomes
quite unresponsive and "sluggish". The same can be seen under a gentoo
"emerge --metadata", and slocate has the same effect.
The problem is not only related to desktop, but i.e. on a dual opteron il
takes several seconds to have an "ls" output (on a nearly empty dir) or
simply to log in using ssh.
It seems to me that I/O scheduler gives high priority to the running process
and any other request is delayed to the point that the responsiveness of a
desktop becomes poor (say, to open a "K" menu takes several seconds on a pIV
2.8G HT).
In every case, we seen that the I/O bound processes are stuck in "D" state,
the same stands for pdflush and kswapd.
--
Fabio Coatti Wireless Solutions SpA - DADA group
Services Manager Europe HQ, via Castiglione 25 Bologna
http://www.wseurope.com Tel: +390512966811 Fax: +390512966800
On Fri, Mar 11 2005, Fabio Coatti wrote:
> Alle 16:16, venerd? 11 marzo 2005, Jens Axboe ha scritto:
> > On Fri, Mar 11 2005, Simone Piunno wrote:
> > > Alle 14:29, venerd? 11 marzo 2005, Baruch Even ha scritto:
> > > > echo t > /proc/sysrq-trigger
> > >
> > > Before killing bonnie:
> >
> > I'm guessing your problem is that bonnie dirtied tons of data before you
> > killed it, so it has to flush it out. If you run out of request entries,
> > you will get to sleep uninterruptibly on those while the data is
> > flushing. I don't see anything unexpected here, it is normal behaviour.
>
> The real issue here is that under heavy I/O activity (bonnie is a good
> way to emphasize the concept), even caused by only one task, the
> system becomes quite unresponsive and "sluggish". The same can be seen
> under a gentoo "emerge --metadata", and slocate has the same effect.
> The problem is not only related to desktop, but i.e. on a dual opteron
> il takes several seconds to have an "ls" output (on a nearly empty
> dir) or simply to log in using ssh. It seems to me that I/O scheduler
> gives high priority to the running process and any other request is
> delayed to the point that the responsiveness of a desktop becomes poor
> (say, to open a "K" menu takes several seconds on a pIV 2.8G HT). In
> every case, we seen that the I/O bound processes are stuck in "D"
> state, the same stands for pdflush and kswapd.
I'd guess that your problem is queueing, if you have a ton of pending
requests in the hardware it will take forever to get a new request
through. There's nothing the io scheduler can do to help you there,
really. The /proc/driver/cciss/cciss0 you originall posted, was that
from before or after running bonnie++? I have no latency experience with
cciss, at least IDE/SATA/SCSI should work alright.
Actually the CFQ that will be in the next -mm release could help you
out, it limits the hardware queue for latency reasons.
--
Jens Axboe
Alle 16:54, venerd? 11 marzo 2005, Jens Axboe ha scritto:
> I'd guess that your problem is queueing, if you have a ton of pending
> requests in the hardware it will take forever to get a new request
> through. There's nothing the io scheduler can do to help you there,
> really. The /proc/driver/cciss/cciss0 you originall posted, was that
> from before or after running bonnie++? I have no latency experience with
> cciss, at least IDE/SATA/SCSI should work alright.
It was after running bonnie++.
--
Simone Piunno, chief architect
Wireless Solutions SPA - DADA group
Europe HQ, via Castiglione 25 Bologna
web:http://www.dada-ws.com tel:+39512966811 fax:+39512966800
On Fri, Mar 11 2005, Simone Piunno wrote:
> Alle 16:54, venerd? 11 marzo 2005, Jens Axboe ha scritto:
>
> > I'd guess that your problem is queueing, if you have a ton of pending
> > requests in the hardware it will take forever to get a new request
> > through. There's nothing the io scheduler can do to help you there,
> > really. The /proc/driver/cciss/cciss0 you originall posted, was that
> > from before or after running bonnie++? I have no latency experience with
> > cciss, at least IDE/SATA/SCSI should work alright.
>
> It was after running bonnie++.
Are you sure? It lists only 190 commands run since it initialized,
that's basically nothing. 6 was the highest depth, should not be enough
to cause serious latency issues unless it was constantly at 6.
--
Jens Axboe
Alle 17:00, venerd? 11 marzo 2005, Jens Axboe ha scritto:
> > It was after running bonnie++.
>
> Are you sure? It lists only 190 commands run since it initialized,
> that's basically nothing.
Yes I'm sure!
Isn't this number the MAX value ever samplef for "Current # commands on
controller"? It doesn't seem to be the counter of how many commands were
processed since start.
To doublecheck, I're run bonnie one more time.
This one was taken while bonnie was running:
cciss0: HP Smart Array 5i Controller
Board ID: 0x40800e11
Firmware Version: 2.56
IRQ: 18
Logical drives: 1
Current Q depth: 0
Current # commands on controller: 132
Max Q depth since init: 147
Max # commands on controller since init: 190
Max SG entries since init: 31
rereading the file, the only moving number was "Current # commands on
controller", basically oscillating between 10 and 150.
> 6 was the highest depth, should not be enough to cause serious latency
> issues unless it was constantly at 6.
As you see, after more runs Max Q raised to 147, but I'm sure it was 6 after
that first run, and in that 1st run responsiveness was already sluggish.
Anyway, I wouldn't focus too much on CCISS, cause the only thing that's
specific of this hardware is the long delay killing bonnie.
Bad responsiveness has been found almost everywhere else.
--
Simone Piunno, chief architect
Wireless Solutions SPA - DADA group
Europe HQ, via Castiglione 25 Bologna
web:http://www.dada-ws.com tel:+39512966811 fax:+39512966800