WARNING: at /build/buildd/linux-2.6.28/kernel/power/main.c:177 suspend_test_finish+0x7c/0x80()

[Per Ångström]

This happened immediately on restarting after the latest kernel upgrade. No visible ill effects detected so far.

ProblemType: KernelOops
Annotation: Your system might become unstable now and might need to be restarted.
Architecture: amd64
DistroRelease: Ubuntu 9.04
Failure: oops
HibernationDevice: RESUME=UUID=2a4d2eac-9fba-4760-849b-e366ea52a359
MachineType: LG Electronics P300-T.APE4V
NonfreeKernelModules: nvidia
Package: linux-image-2.6.28-11-generic 2.6.28-11.42
ProcCmdLine: root=UUID=2f6941e1-2aab-44cc-88b8-b7ba625d4d77 ro quiet splash
ProcVersionSignature: Ubuntu 2.6.28-11.42-generic
SourcePackage: linux
Tags: kernel-oops
Title: WARNING: at /build/buildd/linux-2.6.28/kernel/power/main.c:177 suspend_test_finish+0x7c/0x80()

[Per Ångström (autark)]

This happens every time I reboot.

Kernel failure message 1:
------------[ cut here ]------------
WARNING: at /build/buildd/linux-2.6.28/kernel/power/main.c:177 suspend_test_finish+0x7c/0x80()
Component: resume devices
Modules linked in: nls_iso8859_1 nls_cp437 vfat fat usbhid usb_storage sha256_generic aes_x86_64 aes_generic cbc binfmt_misc ppdev bridge stp bnep input_polldev dm_crypt lp parport snd_hda_intel arc4 ecb snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_dummy joydev snd_seq_oss iwlagn snd_seq_midi snd_rawmidi iwlcore snd_seq_midi_event led_class snd_seq snd_timer snd_seq_device mac80211 uvcvideo compat_ioctl32 snd soundcore videodev snd_page_alloc psmouse cfg80211 video v4l1_compat btusb serio_raw pcspkr intel_agp iTCO_wdt iTCO_vendor_support output nvidia(P) r8169 mii fbcon tileblit font bitblit softcursor
Pid: 7362, comm: pm-suspend Tainted: P W 2.6.28-11-generic #41-Ubuntu
Call Trace:
 [<ffffffff80250927>] warn_slowpath+0xb7/0xf0
 [<ffffffff8026d478>] ? down_trylock+0x38/0x50
 [<ffffffff80251040>] ? try_acquire_console_sem+0x10/0x40
 [<ffffffff8025c676>] ? lock_timer_base+0x36/0x70
 [<ffffffff8069bf26>] ? printk+0x67/0x69
 [<ffffffff80418867>] ? kobject_put+0x27/0x60
 [<ffffffff804b6035>] ? put_device+0x15/0x20
 [<ffffffff804be05a>] ? dpm_complete+0x18a/0x1a0
 [<ffffffff8028003c>] suspend_test_finish+0x7c/0x80
 [<ffffffff80280124>] suspend_devices_and_enter+0xe4/0x180
 [<ffffffff802803d9>] enter_state+0xe9/0x120
 [<ffffffff802804ca>] state_store+0xba/0x100
 [<ffffffff80418707>] kobj_attr_store+0x17/0x20
 [<ffffffff80347675>] sysfs_write_file+0xc5/0x140
 [<ffffffff802e7eeb>] vfs_write+0xcb/0x130
 [<ffffffff802e8040>] sys_write+0x50/0x90
 [<ffffffff8021253a>] system_call_fastpath+0x16/0x1b
---[ end trace e9afef378993ddb9 ]---

Kernel failure message 2:
------------[ cut here ]------------
WARNING: at /build/buildd/linux-2.6.28/kernel/power/main.c:177 suspend_test_finish+0x7c/0x80()
Component: resume devices
Modules linked in: nls_iso8859_1 nls_cp437 vfat fat usbhid usb_storage sha256_generic aes_x86_64 aes_generic cbc binfmt_misc ppdev bridge stp bnep input_polldev dm_crypt lp parport snd_hda_intel arc4 ecb snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_dummy joydev snd_seq_oss iwlagn snd_seq_midi snd_rawmidi iwlcore snd_seq_midi_event led_class snd_seq snd_timer snd_seq_device mac80211 uvcvideo compat_ioctl32 snd soundcore videodev snd_page_alloc psmouse cfg80211 video v4l1_compat btusb serio_raw pcspkr intel_agp iTCO_wdt iTCO_vendor_support output nvidia(P) r8169 mii fbcon tileblit font bitblit softcursor
Pid: 2256, comm: pm-suspend Tainted: P W 2.6.28-11-generic #41-Ubuntu
Call Trace:
 [<ffffffff80250927>] warn_slowpath+0xb7/0xf0
 [<ffffffff8026d478>] ? down_trylock+0x38/0x50
 [<ffffffff80251040>] ? try_acquire_console_sem+0x10/0x40
 [<ffffffff8025c676>] ? lock_timer_base+0x36/0x70
 [<ffffffff8069bf26>] ? printk+0x67/0x69
 [<ffffffff80418867>] ? kobject_put+0x27/0x60
 [<ffffffff804b6035>] ? put_device+0x15/0x20
 [<ffffffff804be05a>] ? dpm_complete+0x18a/0x1a0
 [<ffffffff8028003c>] suspend_test_finish+0x7c/0x80
 [<ffffffff80280124>] suspend_devices_and_enter+0xe4/0x180
 [<ffffffff802803d9>] enter_state+0xe9/0x120
 [<ffff...

[Per Ångström (autark)]

It happens not only on reboot but also on resume from suspend.

[Per Ångström (autark)]

This happens also with kernel 2.6.28-9-generic #31-Ubuntu:

Kernel failure message 1:
WARNING: synaptics was reset on resume, see synaptics_resume_reset if you have trouble on resume
WARNING: synaptics was reset on resume, see synaptics_resume_reset if you have trouble on resume
r8169: eth0: link up
r8169: eth0: link up
Registered led device: iwl-phy0:radio
Registered led device: iwl-phy0:assoc
Registered led device: iwl-phy0:RX
Registered led device: iwl-phy0:TX
ADDRCONF(NETDEV_UP): wlan0: link is not ready
wlan0: direct probe to AP 00:0f:20:c6:54:0b try 1
wlan0: direct probe to AP 00:0f:20:c6:54:0b try 1
wlan0 direct probe responded
wlan0: authenticate with AP 00:0f:20:c6:54:0b
wlan0: authenticated
wlan0: associate with AP 00:0f:20:c6:54:0b
wlan0: RX AssocResp from 00:0f:20:c6:54:0b (capab=0x401 status=0 aid=102)
wlan0: associated
phy0: failed to restore operational channel after scan
ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
wlan0: disassociating by local choice (reason=3)
phy0: failed to restore operational channel after scan
sudo[5322]: segfault at 0 ip 000000000040bcf8 sp 00007fffd5c8d420 error 4 in sudo[400000+1e000]
sudo[5323]: segfault at 0 ip 000000000040bcf8 sp 00007fffd89da170 error 4 in sudo[400000+1e000]

Kernel failure message 2:
------------[ cut here ]------------
WARNING: at /build/buildd/linux-2.6.28/kernel/power/main.c:177 suspend_test_finish+0x7c/0x80()
Component: resume devices
Modules linked in: sha256_generic aes_x86_64 aes_generic cbc binfmt_misc ppdev bridge stp bnep input_polldev dm_crypt lp parport snd_hda_intel joydev snd_pcm_oss snd_mixer_oss arc4 ecb snd_pcm snd_seq_dummy snd_seq_oss snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer snd_seq_device iwlagn iwlcore led_class snd mac80211 uvcvideo soundcore compat_ioctl32 video snd_page_alloc cfg80211 iTCO_wdt iTCO_vendor_support videodev v4l1_compat output usbhid pcspkr psmouse serio_raw intel_agp btusb nvidia(P) r8169 mii ehci_hcd uhci_hcd fbcon tileblit font bitblit softcursor
Pid: 4769, comm: pm-suspend Tainted: P 2.6.28-9-generic #31-Ubuntu
Call Trace:
 [<ffffffff802508d7>] warn_slowpath+0xb7/0xf0
 [<ffffffff8026d458>] ? down_trylock+0x38/0x50
 [<ffffffff80250ff0>] ? try_acquire_console_sem+0x10/0x40
 [<ffffffff8025c636>] ? lock_timer_base+0x36/0x70
 [<ffffffff8068c5a0>] ? printk+0x67/0x6f
 [<ffffffff80418797>] ? kobject_put+0x27/0x60
 [<ffffffff804b63a5>] ? put_device+0x15/0x20
 [<ffffffff804be38a>] ? dpm_complete+0x18a/0x1a0
 [<ffffffff8028000c>] suspend_test_finish+0x7c/0x80
 [<ffffffff802800f4>] suspend_devices_and_enter+0xe4/0x180
 [<ffffffff802803a9>] enter_state+0xe9/0x120
 [<ffffffff8028049a>] state_store+0xba/0x100
 [<ffffffff80418637>] kobj_attr_store+0x17/0x20
 [<ffffffff80347535>] sysfs_write_file+0xc5/0x140
 [<ffffffff802e7f3b>] vfs_write+0xcb/0x130
 [<ffffffff802e8090>] sys_write+0x50/0x90
 [<ffffffff8021253a>] system_call_fastpath+0x16/0x1b
---[ end trace cf646c66bda63ff1 ]---

[exactt (giesbert)]

can confirm this my system. happens on resume form suspend.

[30032.126314] ------------[ cut here ]------------
[30032.126316] WARNING: at /build/buildd/linux-2.6.28/kernel/power/main.c:177 suspend_test_finish+0x7c/0x80()
[30032.126318] Component: resume devices
[30032.126319] Modules linked in: joydev binfmt_misc ppdev radeon drm bridge stp bnep vboxnetflt vboxdrv video output input_polldev lp parport snd_pcm_oss snd_mixer_oss snd_hda_intel snd_pcm snd_seq_dummy snd_seq_oss snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer snd_seq_device snd soundcore usblp snd_page_alloc pcspkr i2c_piix4 usbhid atl1 mii fbcon tileblit font bitblit softcursor
[30032.126343] Pid: 27697, comm: pm-suspend Tainted: G W 2.6.28-11-generic #42-Ubuntu
[30032.126345] Call Trace:
[30032.126351] [<ffffffff80250927>] warn_slowpath+0xb7/0xf0
[30032.126355] [<ffffffff8026d478>] ? down_trylock+0x38/0x50
[30032.126358] [<ffffffff80251040>] ? try_acquire_console_sem+0x10/0x40
[30032.126361] [<ffffffff8025c676>] ? lock_timer_base+0x36/0x70
[30032.126365] [<ffffffff80531f4f>] ? usb_suspend_both+0x26f/0x310
[30032.126370] [<ffffffff8069bf36>] ? printk+0x67/0x69
[30032.126373] [<ffffffff80418877>] ? kobject_put+0x27/0x60
[30032.126377] [<ffffffff804b6045>] ? put_device+0x15/0x20
[30032.126380] [<ffffffff804be06a>] ? dpm_complete+0x18a/0x1a0
[30032.126383] [<ffffffff8028003c>] suspend_test_finish+0x7c/0x80
[30032.126386] [<ffffffff80280124>] suspend_devices_and_enter+0xe4/0x180
[30032.126389] [<ffffffff802803d9>] enter_state+0xe9/0x120
[30032.126392] [<ffffffff802804ca>] state_store+0xba/0x100
[30032.126394] [<ffffffff80418717>] kobj_attr_store+0x17/0x20
[30032.126397] [<ffffffff80347675>] sysfs_write_file+0xc5/0x140
[30032.126401] [<ffffffff802e7eeb>] vfs_write+0xcb/0x130
[30032.126404] [<ffffffff802e8040>] sys_write+0x50/0x90
[30032.126407] [<ffffffff8021253a>] system_call_fastpath+0x16/0x1b
[30032.126409] ---[ end trace 5d6d9f71693fb242 ]---

[paraiko (paraiko)]

In my case I have the impression that the problem occurs actullay before resume/suspend/shutdown. My system freezes and after a hard reset/ (power off) I get the crash report from this bug.

[Per Ångström (autark)]

These last few days, I have only occasionally seen the kernel oops on resume, but I see it every time I reboot.

[Mike Sandman (n8behavior)]

same for me. every boot (warm or cold) produces this reliably. see tarball for lshw, lshal, lsmod, lspci, and dmesg for info on my hardware.

[Tormod Volden (tormodvolden)]

Can you please run:
 zgrep " PM: .* devices took" /var/log/kern.log*
and see if you get any > 5s hits?

[Per Ångström (autark)]

/var/log/kern.log:Apr 20 08:46:21 barbaren kernel: [28959.918662] PM: suspend devices took 1.368 seconds
/var/log/kern.log:Apr 20 08:46:21 barbaren kernel: [28965.543350] PM: resume devices took 5.268 seconds
/var/log/kern.log:Apr 20 15:35:56 barbaren kernel: [43026.242118] PM: suspend devices took 1.364 seconds
/var/log/kern.log:Apr 20 15:35:56 barbaren kernel: [43031.871315] PM: resume devices took 5.272 seconds
/var/log/kern.log:Apr 20 16:14:55 barbaren kernel: [ 363.870094] PM: suspend devices took 1.380 seconds
/var/log/kern.log:Apr 20 16:14:55 barbaren kernel: [ 369.729087] PM: resume devices took 5.400 seconds
/var/log/kern.log:Apr 20 16:15:27 barbaren kernel: [ 395.242161] PM: suspend devices took 1.360 seconds
/var/log/kern.log:Apr 20 16:15:27 barbaren kernel: [ 400.540456] PM: resume devices took 4.932 seconds
/var/log/kern.log:Apr 20 17:56:55 barbaren kernel: [ 644.966825] PM: suspend devices took 1.368 seconds
/var/log/kern.log:Apr 20 17:56:55 barbaren kernel: [ 650.592458] PM: resume devices took 5.268 seconds
/var/log/kern.log:Apr 20 20:01:33 barbaren kernel: [ 3074.530809] PM: suspend devices took 1.356 seconds
/var/log/kern.log:Apr 20 20:01:33 barbaren kernel: [ 3080.252457] PM: resume devices took 5.272 seconds
/var/log/kern.log:Apr 20 20:44:11 barbaren kernel: [ 3993.686098] PM: suspend devices took 1.352 seconds
/var/log/kern.log:Apr 20 20:44:11 barbaren kernel: [ 3999.268771] PM: resume devices took 5.220 seconds
/var/log/kern.log:Apr 21 09:35:16 barbaren kernel: [ 1552.534144] PM: suspend devices took 1.384 seconds
/var/log/kern.log:Apr 21 09:35:16 barbaren kernel: [ 1558.112459] PM: resume devices took 5.220 seconds
/var/log/kern.log:Apr 21 11:16:58 barbaren kernel: [ 2444.490136] PM: suspend devices took 1.356 seconds
/var/log/kern.log:Apr 21 11:16:58 barbaren kernel: [ 2450.200455] PM: resume devices took 5.356 seconds
/var/log/kern.log:Apr 21 12:17:07 barbaren kernel: [ 4246.698113] PM: suspend devices took 1.388 seconds
/var/log/kern.log:Apr 21 12:17:07 barbaren kernel: [ 4252.200457] PM: resume devices took 5.140 seconds
/var/log/kern.log:Apr 21 19:15:04 barbaren kernel: [14725.538118] PM: suspend devices took 1.396 seconds
/var/log/kern.log:Apr 21 19:15:04 barbaren kernel: [14731.592432] PM: resume devices took 5.700 seconds

[Tormod Volden (tormodvolden)]

Thanks, you get a warning because resume took more then 5 seconds, but this does not seem to be problematic.

[Tormod Volden (tormodvolden)]

I'll mark this bug (Per's bug) a duplicate, so all you me-too'ers should maybe file your own bugs if needed.

[Per Ångström (autark)]

If the warning is benign, I'm not happy about it causing a kernel oops. It takes the attention away from more important issues.

[Per Ångström (autark)]

I got so tired of the recurring crash reports that I had to uninstall kerneloops.

[Anton Samets (bock-bynets)]

Heh, I think I have this too.
Then I'm trying suspend my computer, I get: see dmesg.log
System sleeps and wake-up immidiately. And I get not working sound.

uname -a
Linux wax 2.6.28-12-generic #43-Ubuntu SMP Fri May 1 19:31:32 UTC 2009 x86_64 GNU/Linux