On Mon, 27 Apr 2009 15:46:07 PDT, [email protected] said:
> The mm-of-the-moment snapshot 2009-04-27-15-45 has been uploaded to
>
> http://userweb.kernel.org/~akpm/mmotm/
Saw this while booting at home, out of range of any access points I was
configured to associate with (there *are* 4 APs owned by neighbors that I can
see via kismet, but wpa_supplicant isn't configured to use them). Didn't
happen this morning at my office, when there's APs in range.
This didn't happen in mmotm-0424, so it's something new in the last few days.
[ 519.180281] iwl3945 0000:0c:00.0: Error sending REPLY_SCAN_CMD: time out after 500ms.
[ 519.680281] iwl3945 0000:0c:00.0: Error sending REPLY_TX_PWR_TABLE_CMD: time out after 500ms.
[ 519.926455] ------------[ cut here ]------------
[ 519.926461] WARNING: at net/mac80211/scan.c:282 warn_slowpath_null+0xd/0xf()
[ 519.926465] Hardware name: Latitude D820
[ 519.926476] BUG: unable to handle kernel NULL pointer dereference at (null)
[ 519.926485] IP: [<ffffffff802384ff>] warn_slowpath_fmt+0x7d/0xd0
[ 519.926494] PGD 7ead4067 PUD 7f8e3067 PMD 0
[ 519.926504] Oops: 0000 [#1] PREEMPT SMP
[ 519.926512] last sysfs file: /sys/devices/platform/dock.0/docked
[ 519.926518] CPU 1
[ 519.926522] Modules linked in: sunrpc nvidia(P) [last unloaded: microcode]
[ 519.926536] Pid: 649, comm: iwl3945 Tainted: P 2.6.30-rc3-mmotm0427 #1 Latitude D820
[ 519.926541] RIP: 0010:[<ffffffff802384ff>] [<ffffffff802384ff>] warn_slowpath_fmt+0x7d/0xd0
[ 519.926551] RSP: 0018:ffff88007e7e3c70 EFLAGS: 00010286
[ 519.926555] RAX: 0000000000000042 RBX: 000000000000011a RCX: 00000000ffffffff
[ 519.926560] RDX: ffff8800010f1000 RSI: ffffffff8064d3b3 RDI: ffffffff80239038
[ 519.926564] RBP: ffff88007e7e3dd0 R08: 0000000000000082 R09: 0000000000000000
[ 519.926569] R10: 0000000000000005 R11: 0000000000000000 R12: ffffffff8082531c
[ 519.926574] R13: 0000000000000000 R14: ffff88007e7e3c70 R15: ffff8800010f0100
[ 519.926579] FS: 0000000000000000(0000) GS:ffff8800010f1000(0000) knlGS:0000000000000000
[ 519.926584] CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b
[ 519.926589] CR2: 0000000000000000 CR3: 000000007ead5000 CR4: 00000000000006e0
[ 519.926593] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 519.926598] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[ 519.926604] Process iwl3945 (pid: 649, threadinfo ffff88007e7e2000, task ffff88007e794500)
[ 519.926608] Stack:
[ 519.926611] 6f6c735f6e726177 756e5f6874617077 302f6478302b6c6c ffffffff80006678
[ 519.926620] ffff880000000000 ffff88007f8008c0 ffff88007e7e3d20 0000000000000046
[ 519.926631] 0000000000000002 0000000000000000 ffffffff8046e959 0000000000000000
[ 519.926643] Call Trace:
[ 519.926647] [<ffffffff8046e959>] ? iwl_rx_queue_update_write_ptr+0x2d/0xd8
[ 519.926657] [<ffffffff80259a62>] ? trace_hardirqs_off_caller+0x1f/0xa2
[ 519.926667] [<ffffffff8064fd91>] ? _spin_unlock_irqrestore+0x5b/0x69
[ 519.926677] [<ffffffff8046e9f2>] ? iwl_rx_queue_update_write_ptr+0xc6/0xd8
[ 519.926684] [<ffffffff80473c3e>] ? iwl_bg_scan_completed+0x0/0x65
[ 519.926692] [<ffffffff8023855f>] warn_slowpath_null+0xd/0xf
[ 519.926699] [<ffffffff80612dc9>] ieee80211_scan_completed+0x4d/0x367
[ 519.926709] [<ffffffff80473c3e>] ? iwl_bg_scan_completed+0x0/0x65
[ 519.926716] [<ffffffff80473c76>] iwl_bg_scan_completed+0x38/0x65
[ 519.926723] [<ffffffff802488e0>] worker_thread+0x251/0x369
[ 519.926731] [<ffffffff80248887>] ? worker_thread+0x1f8/0x369
[ 519.926738] [<ffffffff8064fd70>] ? _spin_unlock_irqrestore+0x3a/0x69
[ 519.926745] [<ffffffff8024cb21>] ? autoremove_wake_function+0x0/0x34
[ 519.926753] [<ffffffff8024868f>] ? worker_thread+0x0/0x369
[ 519.926760] [<ffffffff8024c728>] kthread+0x55/0x80
[ 519.926767] [<ffffffff8020c1ba>] child_rip+0xa/0x20
[ 519.926774] [<ffffffff802305ac>] ? finish_task_switch+0x7f/0xc9
[ 519.926782] [<ffffffff8020bb80>] ? restore_args+0x0/0x30
[ 519.926790] [<ffffffff8024c6d3>] ? kthread+0x0/0x80
[ 519.926796] [<ffffffff8020c1b0>] ? child_rip+0x0/0x20
[ 519.926802] Code: 77 a5 7b 80 31 c0 e8 98 4e 41 00 bf 05 00 00 00 e8 e7 ad 2a 00 48 85 c0 74 11 48 89 c6 48 c7 c7 92 a5 7b 80 31 c0 e8 78 4e 41 00 <41> 80 7d 00 00 74 23 48 8d 45 10 48 8d 75 90 48 89 45 98 c7 45
[ 519.926904] RIP [<ffffffff802384ff>] warn_slowpath_fmt+0x7d/0xd0
[ 519.926912] RSP <ffff88007e7e3c70>
Apr 28 01:50:28 turing-police kernel: [ 519.926915] CR2: 0000000000000000
Apr 28 01:50:28 turing-police kernel: [ 519.926920] ---[ end trace 00d0bec46e95e015 ]---
On Tue, 2009-04-28 at 10:14 -0700, [email protected] wrote:
> On Mon, 27 Apr 2009 15:46:07 PDT, [email protected] said:
> > The mm-of-the-moment snapshot 2009-04-27-15-45 has been uploaded to
> >
> > http://userweb.kernel.org/~akpm/mmotm/
>
> Saw this while booting at home, out of range of any access points I was
> configured to associate with (there *are* 4 APs owned by neighbors that I can
> see via kismet, but wpa_supplicant isn't configured to use them). Didn't
> happen this morning at my office, when there's APs in range.
>
> This didn't happen in mmotm-0424, so it's something new in the last few days.
A recent patch that is related is ...
commit 4583f7455c6b668a4e9cab154b5a7b6c583b288a
Author: Johannes Berg <[email protected]>
Date: Thu Apr 23 10:45:04 2009 +0200
iwlwifi: notify on scan completion even when shutting down
Under certain circumstances iwlwifi can get stuck and will no
longer accept scan requests, because the core code (cfg80211)
thinks that it's still processing one. This fixes one of the
points where it can happen, but I've still seen it (although
only with my radio-off-when-idle patch).
Signed-off-by: Johannes Berg <[email protected]>
Acked-by: Reinette Chatre <[email protected]>
Signed-off-by: John W. Linville <[email protected]>
Could you please revert this and test again?
If this does not help, could you please bisect?
Thank you
Reinette
>
> [ 519.180281] iwl3945 0000:0c:00.0: Error sending REPLY_SCAN_CMD: time out after 500ms.
> [ 519.680281] iwl3945 0000:0c:00.0: Error sending REPLY_TX_PWR_TABLE_CMD: time out after 500ms.
> [ 519.926455] ------------[ cut here ]------------
> [ 519.926461] WARNING: at net/mac80211/scan.c:282 warn_slowpath_null+0xd/0xf()
> [ 519.926465] Hardware name: Latitude D820
> [ 519.926476] BUG: unable to handle kernel NULL pointer dereference at (null)
> [ 519.926485] IP: [<ffffffff802384ff>] warn_slowpath_fmt+0x7d/0xd0
> [ 519.926494] PGD 7ead4067 PUD 7f8e3067 PMD 0
> [ 519.926504] Oops: 0000 [#1] PREEMPT SMP
> [ 519.926512] last sysfs file: /sys/devices/platform/dock.0/docked
> [ 519.926518] CPU 1
> [ 519.926522] Modules linked in: sunrpc nvidia(P) [last unloaded: microcode]
> [ 519.926536] Pid: 649, comm: iwl3945 Tainted: P 2.6.30-rc3-mmotm0427 #1 Latitude D820
> [ 519.926541] RIP: 0010:[<ffffffff802384ff>] [<ffffffff802384ff>] warn_slowpath_fmt+0x7d/0xd0
> [ 519.926551] RSP: 0018:ffff88007e7e3c70 EFLAGS: 00010286
> [ 519.926555] RAX: 0000000000000042 RBX: 000000000000011a RCX: 00000000ffffffff
> [ 519.926560] RDX: ffff8800010f1000 RSI: ffffffff8064d3b3 RDI: ffffffff80239038
> [ 519.926564] RBP: ffff88007e7e3dd0 R08: 0000000000000082 R09: 0000000000000000
> [ 519.926569] R10: 0000000000000005 R11: 0000000000000000 R12: ffffffff8082531c
> [ 519.926574] R13: 0000000000000000 R14: ffff88007e7e3c70 R15: ffff8800010f0100
> [ 519.926579] FS: 0000000000000000(0000) GS:ffff8800010f1000(0000) knlGS:0000000000000000
> [ 519.926584] CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b
> [ 519.926589] CR2: 0000000000000000 CR3: 000000007ead5000 CR4: 00000000000006e0
> [ 519.926593] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> [ 519.926598] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
> [ 519.926604] Process iwl3945 (pid: 649, threadinfo ffff88007e7e2000, task ffff88007e794500)
> [ 519.926608] Stack:
> [ 519.926611] 6f6c735f6e726177 756e5f6874617077 302f6478302b6c6c ffffffff80006678
> [ 519.926620] ffff880000000000 ffff88007f8008c0 ffff88007e7e3d20 0000000000000046
> [ 519.926631] 0000000000000002 0000000000000000 ffffffff8046e959 0000000000000000
> [ 519.926643] Call Trace:
> [ 519.926647] [<ffffffff8046e959>] ? iwl_rx_queue_update_write_ptr+0x2d/0xd8
> [ 519.926657] [<ffffffff80259a62>] ? trace_hardirqs_off_caller+0x1f/0xa2
> [ 519.926667] [<ffffffff8064fd91>] ? _spin_unlock_irqrestore+0x5b/0x69
> [ 519.926677] [<ffffffff8046e9f2>] ? iwl_rx_queue_update_write_ptr+0xc6/0xd8
> [ 519.926684] [<ffffffff80473c3e>] ? iwl_bg_scan_completed+0x0/0x65
> [ 519.926692] [<ffffffff8023855f>] warn_slowpath_null+0xd/0xf
> [ 519.926699] [<ffffffff80612dc9>] ieee80211_scan_completed+0x4d/0x367
> [ 519.926709] [<ffffffff80473c3e>] ? iwl_bg_scan_completed+0x0/0x65
> [ 519.926716] [<ffffffff80473c76>] iwl_bg_scan_completed+0x38/0x65
> [ 519.926723] [<ffffffff802488e0>] worker_thread+0x251/0x369
> [ 519.926731] [<ffffffff80248887>] ? worker_thread+0x1f8/0x369
> [ 519.926738] [<ffffffff8064fd70>] ? _spin_unlock_irqrestore+0x3a/0x69
> [ 519.926745] [<ffffffff8024cb21>] ? autoremove_wake_function+0x0/0x34
> [ 519.926753] [<ffffffff8024868f>] ? worker_thread+0x0/0x369
> [ 519.926760] [<ffffffff8024c728>] kthread+0x55/0x80
> [ 519.926767] [<ffffffff8020c1ba>] child_rip+0xa/0x20
> [ 519.926774] [<ffffffff802305ac>] ? finish_task_switch+0x7f/0xc9
> [ 519.926782] [<ffffffff8020bb80>] ? restore_args+0x0/0x30
> [ 519.926790] [<ffffffff8024c6d3>] ? kthread+0x0/0x80
> [ 519.926796] [<ffffffff8020c1b0>] ? child_rip+0x0/0x20
> [ 519.926802] Code: 77 a5 7b 80 31 c0 e8 98 4e 41 00 bf 05 00 00 00 e8 e7 ad 2a 00 48 85 c0 74 11 48 89 c6 48 c7 c7 92 a5 7b 80 31 c0 e8 78 4e 41 00 <41> 80 7d 00 00 74 23 48 8d 45 10 48 8d 75 90 48 89 45 98 c7 45
> [ 519.926904] RIP [<ffffffff802384ff>] warn_slowpath_fmt+0x7d/0xd0
> [ 519.926912] RSP <ffff88007e7e3c70>
> Apr 28 01:50:28 turing-police kernel: [ 519.926915] CR2: 0000000000000000
> Apr 28 01:50:28 turing-police kernel: [ 519.926920] ---[ end trace 00d0bec46e95e015 ]---
>
On Tue, Apr 28, 2009 at 01:39:44PM -0700, reinette chatre wrote:
> On Tue, 2009-04-28 at 10:14 -0700, [email protected] wrote:
> > On Mon, 27 Apr 2009 15:46:07 PDT, [email protected] said:
> > > The mm-of-the-moment snapshot 2009-04-27-15-45 has been uploaded to
> > >
> > > http://userweb.kernel.org/~akpm/mmotm/
> >
> > Saw this while booting at home, out of range of any access points I was
> > configured to associate with (there *are* 4 APs owned by neighbors that I can
> > see via kismet, but wpa_supplicant isn't configured to use them). Didn't
> > happen this morning at my office, when there's APs in range.
> >
> > This didn't happen in mmotm-0424, so it's something new in the last few days.
>
> A recent patch that is related is ...
>
> commit 4583f7455c6b668a4e9cab154b5a7b6c583b288a
> Author: Johannes Berg <[email protected]>
> Date: Thu Apr 23 10:45:04 2009 +0200
>
> iwlwifi: notify on scan completion even when shutting down
>
> Under certain circumstances iwlwifi can get stuck and will no
> longer accept scan requests, because the core code (cfg80211)
> thinks that it's still processing one. This fixes one of the
> points where it can happen, but I've still seen it (although
> only with my radio-off-when-idle patch).
>
> Signed-off-by: Johannes Berg <[email protected]>
> Acked-by: Reinette Chatre <[email protected]>
> Signed-off-by: John W. Linville <[email protected]>
>
>
> Could you please revert this and test again?
I doubt if that will help -- I just put it into wireless-2.6 and
wireless-testing today.
> If this does not help, could you please bisect?
Better bet...unless you meant "apply" instead of "revert"...
John
--
John W. Linville Someday the world will need a hero, and you
[email protected] might be all we have. Be ready.
On Tue, 2009-04-28 at 13:38 -0700, John W. Linville wrote:
> On Tue, Apr 28, 2009 at 01:39:44PM -0700, reinette chatre wrote:
> > On Tue, 2009-04-28 at 10:14 -0700, [email protected] wrote:
> > > On Mon, 27 Apr 2009 15:46:07 PDT, [email protected] said:
> > > > The mm-of-the-moment snapshot 2009-04-27-15-45 has been uploaded to
> > > >
> > > > http://userweb.kernel.org/~akpm/mmotm/
> > >
> > > Saw this while booting at home, out of range of any access points I was
> > > configured to associate with (there *are* 4 APs owned by neighbors that I can
> > > see via kismet, but wpa_supplicant isn't configured to use them). Didn't
> > > happen this morning at my office, when there's APs in range.
> > >
> > > This didn't happen in mmotm-0424, so it's something new in the last few days.
> >
> > A recent patch that is related is ...
> >
> > commit 4583f7455c6b668a4e9cab154b5a7b6c583b288a
> > Author: Johannes Berg <[email protected]>
> > Date: Thu Apr 23 10:45:04 2009 +0200
> >
> > iwlwifi: notify on scan completion even when shutting down
> >
> > Under certain circumstances iwlwifi can get stuck and will no
> > longer accept scan requests, because the core code (cfg80211)
> > thinks that it's still processing one. This fixes one of the
> > points where it can happen, but I've still seen it (although
> > only with my radio-off-when-idle patch).
> >
> > Signed-off-by: Johannes Berg <[email protected]>
> > Acked-by: Reinette Chatre <[email protected]>
> > Signed-off-by: John W. Linville <[email protected]>
> >
> >
> > Could you please revert this and test again?
>
> I doubt if that will help -- I just put it into wireless-2.6 and
> wireless-testing today.
>
> > If this does not help, could you please bisect?
>
> Better bet...unless you meant "apply" instead of "revert"...
I did mean revert ... without checking that this patch was in mm yet. Sorry.
Reinette
On Tue, 28 Apr 2009 13:39:44 PDT, reinette chatre said:
> Could you please revert this and test again?
>
> If this does not help, could you please bisect?
Same kernel that oopsed 2 nights ago failed to do so in 8 or 9 hours last
night - so it isn't a "fire up wpa_supplicant and know inside 20 or 30 seconds
if the kernel tested is good" candidate for bisection. Will collect what
info I can.
On Wed, 2009-04-29 at 08:56 -0700, [email protected] wrote:
> On Tue, 28 Apr 2009 13:39:44 PDT, reinette chatre said:
>
> > Could you please revert this and test again?
> >
> > If this does not help, could you please bisect?
>
> Same kernel that oopsed 2 nights ago failed to do so in 8 or 9 hours last
> night - so it isn't a "fire up wpa_supplicant and know inside 20 or 30 seconds
> if the kernel tested is good" candidate for bisection. Will collect what
> info I can.
Do you perhaps still have the original logs of this problem? The log you
sent initially started with some errors. Were there perhaps any other
driver status or error messages printed before that?
Thank you
Reinette