I just booted 2.5.26 to textmode, logged in as root and left it there. After
a while I got this. After that, floppy access etc fails.
buffer layer error at page-writeback.c:420
Pass this trace through ksymoops for reporting
c11f9e5c 000001a4 c3f06f20 c1080720 c3f06f20 c3f06f48 c11f9e84 c012775e
c1080720 c1080720 c11f9ec4 c0151ea4 c1080720 00000000 c011ce66
00000001
c11f9eac c3f06f38 c0127700 00000000 00000000 00000000 00000000
c3f06ea0
Call Trace: [<c012775e>] [<c0151ea4>] [<c011ce66>] [<c0127700>] [<c0135710>]
[<c0150fd9>] [<c0151268>] [<c01513ac>] [<c013561d>] [<c01352bd>]
[<c0105000>] [<c01352f1>] [<c01355c0>] [<c01075fe>] [<c01352e0>]
buffer layer error at page-writeback.c:432
Pass this trace through ksymoops for reporting
c11f9e5c 000001b0 c3f06f20 c1080720 c3f06f20 c3f06f48 c11f9e84 c012775e
c1080720 c1080720 c11f9ec4 c0151ea4 c1080720 00000000 c011ce66
00000001
c11f9eac c3f06f38 c0127700 00000000 00000000 00000000 00000000
c3f06ea0
Call Trace: [<c012775e>] [<c0151ea4>] [<c011ce66>] [<c0127700>] [<c0135710>]
[<c0150fd9>] [<c0151268>] [<c01513ac>] [<c013561d>] [<c01352bd>]
[<c0105000>]
[<c01352f1>] [<c01355c0>] [<c01075fe>] [<c01352e0>]
ksymoops:
Warning (Oops_read): Code line not seen, dumping what data is available
Trace; c012775e <fail_writepage+5e/70>
Trace; c0151ea4 <mpage_writepages+1d4/260>
Trace; c011ce66 <update_wall_time+16/40>
Trace; c0127700 <fail_writepage+0/70>
Trace; c0135710 <generic_writepages+20/30>
Trace; c0150fd9 <__sync_single_inode+89/1b0>
Trace; c0151268 <sync_sb_inodes+e8/1d0>
Trace; c01513ac <writeback_unlocked_inodes+5c/60>
Trace; c013561d <wb_kupdate+5d/a0>
Trace; c01352bd <__pdflush+19d/1c0>
Trace; c0105000 <_stext+0/0>
Trace; c01352f1 <pdflush+11/20>
Trace; c01355c0 <wb_kupdate+0/a0>
Trace; c01075fe <kernel_thread+2e/40>
Trace; c01352e0 <pdflush+0/20>
Trace; c012775e <fail_writepage+5e/70>
Trace; c0151ea4 <mpage_writepages+1d4/260>
Trace; c011ce66 <update_wall_time+16/40>
Trace; c0127700 <fail_writepage+0/70>
Trace; c0135710 <generic_writepages+20/30>
Trace; c0150fd9 <__sync_single_inode+89/1b0>
Trace; c0151268 <sync_sb_inodes+e8/1d0>
Trace; c01513ac <writeback_unlocked_inodes+5c/60>
Trace; c013561d <wb_kupdate+5d/a0>
Trace; c01352bd <__pdflush+19d/1c0>
Trace; c0105000 <_stext+0/0>
Trace; c01352f1 <pdflush+11/20>
Trace; c01355c0 <wb_kupdate+0/a0>
Trace; c01075fe <kernel_thread+2e/40>
Trace; c01352e0 <pdflush+0/20>
-- v --
[email protected]
On Sun, Jul 21, 2002 at 03:08:37PM +0300, you [Ville Herva] wrote:
> I just booted 2.5.26 to textmode, logged in as root and left it there. After
> a while I got this. After that, floppy access etc fails.
Sorry, forgot to mention this is under vmware. It can of course have huge
influence, although 2.4 runs solid under it.
root = hdc = cdrom ext2,
/tmp = ramdisk
ATA/ATAPI device driver v7.0.0
ATA: PCI bus speed 33.3MHz
ATA: Intel Corp. 82371AB PIIX4 IDE, PCI slot 00:07.1
ATA: chipset rev.: 1
ATA: non-legacy mode: IRQ probe delayed
PIIX: Intel Corp. 82371AB PIIX4 IDE UDMA33 controller on pci00:07.1
ide0: BM-DMA at 0x1020-0x1027, BIOS settings: hda:DMA, hdb:DMA
ide1: BM-DMA at 0x1028-0x102f, BIOS settings: hdc:DMA, hdd:pio
hda: VMware Virtual IDE Hard Drive, DISK drive
hdb: VMware Virtual IDE CDROM Drive, ATAPI CD/DVD-ROM drive
hdc: VMware Virtual IDE CDROM Drive, ATAPI CD/DVD-ROM drive
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
ide1 at 0x170-0x177,0x376 on irq 15
hda: 81648 sectors w/32KiB Cache, CHS=81/16/63, UDMA(33)
hda: unknown partition table
hdb: ATAPI 1X CD-ROM drive, 32kB Cache, UDMA(33)
Uniform CD-ROM driver Revision: 3.12
hdc: ATAPI 1X CD-ROM drive, 32kB Cache, UDMA(33)
-- v --
[email protected]
Ville Herva wrote:
>
> I just booted 2.5.26 to textmode, logged in as root and left it there. After
> a while I got this.
urgh. OK, thanks. It's that dang ramdisk driver again.
I'll take a look.
> After that, floppy access etc fails.
That would probably be unrelated - the message is just a
warning/debug thing.
-
On Sun, Jul 21, 2002 at 11:32:59PM -0700, you [Andrew Morton] wrote:
> Ville Herva wrote:
> >
> > I just booted 2.5.26 to textmode, logged in as root and left it there. After
> > a while I got this.
>
> urgh. OK, thanks. It's that dang ramdisk driver again.
> I'll take a look.
I'm not sure how to reproduce it (the machine was idle for hours before it
took place), but I'll be happy to test should you come up with a fix.
> > After that, floppy access etc fails.
>
> That would probably be unrelated - the message is just a
> warning/debug thing.
Well, in that case, here's the kernel log snippet. At the time, I tried
something like dmesg > /dev/fd0. And /dev/fd0 should exist - I booted from
it (kernel copied onto it, no lilo). The rootfs is on /dev/hdc (cdrom),
ext2. No modules, vanilla 2.5.26. And, no I didn't change the floppy in
between.
---------------------------------------------------------------------------
VFS: Disk change detected on device fd(2,0)
generic_make_request: Trying to access nonexistent block-device fd(2,0) (0)
Unable to handle kernel NULL pointer dereference at virtual address 0000008c
printing eip:
c01adc5d
*pde = 00000000
Oops: 0000
CPU: 0
EIP: 0010:[<c01adc5d>] Not tainted
EFLAGS: 00000082
eax: 00000000 ebx: 00000000 ecx: 00000001 edx: c2adde0c
esi: c2adde28 edi: c105f7a4 ebp: c2addde8 esp: c2addde0
ds: 0018 es: 0018 ss: 0018
Process dd (pid: 719, threadinfo=c2adc000 task=c2fa75a0)
Stack: c2adde28 c2adde08 c2adde74 c01b7279 00000000 c2adde28 00000000 c2adde10
c01b110c 00000001 00000001 c2adde0c c2adde0c c01b12cf c105f7a4 00000400
00000000 c01152c5 00000000 00000000 c3f2a180 00000000 00000000 00000001
Call Trace: [<c01b7279>] [<c01b110c>] [<c01b12cf>] [<c01152c5>] [<c01b71c0>]
[<c01b72d8>] [<c013da13>] [<c01b6e81>] [<c013db0f>] [<c013d589>] [<c013d6b4>]
[<c013de17>] [<c01367fe>] [<c0136646>] [<c0136a85>] [<c0109117>]
Code: 8b 93 8c 00 00 00 8d 8b 8c 00 00 00 39 ca 74 39 8b 41 04 89
floppy driver state
-------------------
now=6216204 last interrupt=521 diff=6215683 last called handler=c01b2d20
timeout_message=lock fdc
last output bytes:
0 0 0
0 0 0
0 0 0
8 80 517
8 80 517
8 80 517
8 80 517
e 80 519
13 80 519
0 90 519
1a 90 520
0 90 520
12 80 520
0 90 520
14 80 520
18 80 520
8 80 521
8 80 521
8 80 521
8 80 521
last result at 521
last redo_fd_request at 521
status=80
fdc_busy=1
cont=00000000
CURRENT=00000000
command_status=-1
floppy0: floppy timeout called
no cont in shutdown!
floppy0: timeout handler died: floppy shutdown
Ksymoops:
>>EIP; c01adc5d <generic_unplug_device+d/60> <=====
Trace; c01b7279 <__floppy_read_block_0+a9/e0>
Trace; c01b110c <set_fdc+6c/e0>
Trace; c01b12cf <_lock_fdc+14f/160>
Trace; c01152c5 <call_console_drivers+65/120>
Trace; c01b71c0 <floppy_rb0_complete+0/10>
Trace; c01b72d8 <floppy_read_block_0+28/60>
Trace; c013da13 <check_disk_change+93/b0>
Trace; c01b6e81 <floppy_open+251/450>
Trace; c013db0f <do_open+6f/2d0>
Trace; c013d589 <bdget+e9/140>
Trace; c013d6b4 <bd_acquire+34/90>
Trace; c013de17 <blkdev_open+37/50>
Trace; c01367fe <dentry_open+1ae/220>
Trace; c0136646 <filp_open+66/70>
Trace; c0136a85 <sys_open+55/90>
Trace; c0109117 <syscall_call+7/b>
Code; c01adc5d <generic_unplug_device+d/60>
00000000 <_EIP>:
Code; c01adc5d <generic_unplug_device+d/60> <=====
0: 8b 93 8c 00 00 00 mov 0x8c(%ebx),%edx <=====
Code; c01adc63 <generic_unplug_device+13/60>
6: 8d 8b 8c 00 00 00 lea 0x8c(%ebx),%ecx
Code; c01adc69 <generic_unplug_device+19/60>
c: 39 ca cmp %ecx,%edx
Code; c01adc6b <generic_unplug_device+1b/60>
e: 74 39 je 49 <_EIP+0x49>
Code; c01adc6d <generic_unplug_device+1d/60>
10: 8b 41 04 mov 0x4(%ecx),%eax
Code; c01adc70 <generic_unplug_device+20/60>
13: 89 00 mov %eax,(%eax)
-- v --
[email protected]