14500 – Kernel 2.6.31-14.48 froze during regular use (kref.c with warn_slowpath_common)

Bug 14500 - Kernel 2.6.31-14.48 froze during regular use (kref.c with warn_slowpath_common)

Summary: Kernel 2.6.31-14.48 froze during regular use (kref.c with warn_slowpath_common)

Status:	CLOSED OBSOLETE

Alias:	None

Product:	Drivers
Classification:	Unclassified
Component:	Video(DRI - non Intel) (show other bugs)
Hardware:	All Linux

Importance:	P1 high
Assignee:	drivers_video-dri

URL:
Keywords:

Depends on:
Blocks:

Reported:	2009-10-28 15:39 UTC by nikolaj
Modified:	2012-06-14 10:06 UTC (History)
CC List:	1 user (show)

See Also:
Kernel Version:
Subsystem:
Regression:	No
Bisected commit-id:

Attachments
Add an attachment (proposed patch, testcase, etc.)

Description nikolaj 2009-10-28 15:39:27 UTC

I have an the following kernel installed:
2.6.31-14-generic #48-Ubuntu SMP Fri Oct 16 14:05:01 UTC 2009 x86_64 GNU/Linux
with Radeon KMS (radeon.modeset=true) on a Dell Optiplex 745 with a RV516 [Radeon X1300/X1550 Series] video card.

The kernel generated the following error and hung when I clicked a dropdown menu in Eclipse.

I do not know how to reproduce this.

Oct 28 15:23:51 nsh-ubuntu kernel: [24875.384554] usb 4-2: usbfs: process 23458 (pcscd) did not claim interface 0 before use
Oct 28 15:36:37 nsh-ubuntu kernel: [25641.720030] ------------[ cut here ]------------
Oct 28 15:36:37 nsh-ubuntu kernel: [25641.720040] WARNING: at /build/buildd/linux-2.6.31/lib/kref.c:43 kref_get+0x2d/0x30()
Oct 28 15:36:37 nsh-ubuntu kernel: [25641.720042] Hardware name: OptiPlex 745                 
Oct 28 15:36:37 nsh-ubuntu kernel: [25641.720044] Modules linked in: binfmt_misc iptable_filter ip_tables x_tables ppdev parport_pc lp parport snd_hda_codec_analog snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_dummy snd_seq_oss gspca_zc3xx snd_seq_midi snd_rawmidi snd_seq_midi_event gspca_main snd_seq videodev snd_timer v4l1_compat snd_seq_device psmouse snd soundcore snd_page_alloc dell_wmi dcdbas v4l2_compat_ioctl32 serio_raw pl2303 usbserial dm_raid45 xor fbcon tileblit font bitblit softcursor usbhid radeon ttm floppy drm i2c_algo_bit tg3 intel_agp
Oct 28 15:36:37 nsh-ubuntu kernel: [25641.720083] Pid: 9, comm: events/0 Not tainted 2.6.31-14-generic #48-Ubuntu
Oct 28 15:36:37 nsh-ubuntu kernel: [25641.720085] Call Trace:
Oct 28 15:36:37 nsh-ubuntu kernel: [25641.720092]  [<ffffffff8105e788>] warn_slowpath_common+0x78/0xb0
Oct 28 15:36:37 nsh-ubuntu kernel: [25641.720095]  [<ffffffff8105e7cf>] warn_slowpath_null+0xf/0x20
Oct 28 15:36:37 nsh-ubuntu kernel: [25641.720098]  [<ffffffff8127561d>] kref_get+0x2d/0x30
Oct 28 15:36:37 nsh-ubuntu kernel: [25641.720105]  [<ffffffffa0083df4>] ttm_bo_delayed_delete+0x94/0x170 [ttm]
Oct 28 15:36:37 nsh-ubuntu kernel: [25641.720111]  [<ffffffffa0083ed0>] ? ttm_bo_delayed_workqueue+0x0/0x40 [ttm]
Oct 28 15:36:37 nsh-ubuntu kernel: [25641.720117]  [<ffffffffa0083eea>] ttm_bo_delayed_workqueue+0x1a/0x40 [ttm]
Oct 28 15:36:37 nsh-ubuntu kernel: [25641.720121]  [<ffffffff810737a5>] run_workqueue+0x95/0x170
Oct 28 15:36:37 nsh-ubuntu kernel: [25641.720124]  [<ffffffff81073924>] worker_thread+0xa4/0x120
Oct 28 15:36:37 nsh-ubuntu kernel: [25641.720127]  [<ffffffff81078b30>] ? autoremove_wake_function+0x0/0x40
Oct 28 15:36:37 nsh-ubuntu kernel: [25641.720130]  [<ffffffff81073880>] ? worker_thread+0x0/0x120
Oct 28 15:36:37 nsh-ubuntu kernel: [25641.720133]  [<ffffffff81078746>] kthread+0xa6/0xb0
Oct 28 15:36:37 nsh-ubuntu kernel: [25641.720137]  [<ffffffff810130ea>] child_rip+0xa/0x20
Oct 28 15:36:37 nsh-ubuntu kernel: [25641.720139]  [<ffffffff810786a0>] ? kthread+0x0/0xb0
Oct 28 15:36:37 nsh-ubuntu kernel: [25641.720142]  [<ffffffff810130e0>] ? child_rip+0x0/0x20
Oct 28 15:36:37 nsh-ubuntu kernel: [25641.720144] ---[ end trace 3564b418d3790d19 ]---

Comment 1 nikolaj 2009-10-29 11:50:32 UTC

I received the problem again, although the kernel did not hang quite as drastically this time.
A kernel oops was generated this time in extension of the message previously posted:
http://www.kerneloops.org/submitresult.php?number=858303

Comment 2 nikolaj 2010-01-27 08:08:10 UTC

Seen again on kernel Not tainted 2.6.31-18-generic #55-Ubuntu.

Jan 27 08:18:07 nsh-ubuntu kernel: [  263.980058] ------------[ cut here ]------------
Jan 27 08:18:07 nsh-ubuntu kernel: [  263.980068] WARNING: at /build/buildd/linux-2.6.31/lib/kref.c:43 kref_get+0x2d/0x30()
Jan 27 08:18:07 nsh-ubuntu kernel: [  263.980070] Hardware name: OptiPlex 745                 
Jan 27 08:18:07 nsh-ubuntu kernel: [  263.980072] Modules linked in: binfmt_misc vboxnetflt vboxnetadp vboxdrv kvm_intel kvm snd_hda_codec_analog snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_dummy snd_seq_oss ppdev iptable_filter snd_seq_midi ip_tables x_tables gspca_zc3xx gspca_main videodev v4l1_compat v4l2_compat_ioctl32 pl2303 usbserial snd_rawmidi snd_seq_midi_event psmouse serio_raw parport_pc dell_wmi dcdbas lp parport snd_seq snd_timer snd_seq_device snd soundcore snd_page_alloc usbhid dm_raid45 xor fbcon tileblit font bitblit softcursor radeon ttm drm i2c_algo_bit floppy tg3 intel_agp
Jan 27 08:18:07 nsh-ubuntu kernel: [  263.980114] Pid: 10, comm: events/1 Not tainted 2.6.31-18-generic #55-Ubuntu
Jan 27 08:18:07 nsh-ubuntu kernel: [  263.980116] Call Trace:
Jan 27 08:18:07 nsh-ubuntu kernel: [  263.980121]  [<ffffffff8105e828>] warn_slowpath_common+0x78/0xb0
Jan 27 08:18:07 nsh-ubuntu kernel: [  263.980125]  [<ffffffff8105e86f>] warn_slowpath_null+0xf/0x20
Jan 27 08:18:07 nsh-ubuntu kernel: [  263.980127]  [<ffffffff81279bed>] kref_get+0x2d/0x30
Jan 27 08:18:07 nsh-ubuntu kernel: [  263.980135]  [<ffffffffa007fdf4>] ttm_bo_delayed_delete+0x94/0x180 [ttm]
Jan 27 08:18:07 nsh-ubuntu kernel: [  263.980141]  [<ffffffffa007fee0>] ? ttm_bo_delayed_workqueue+0x0/0x40 [ttm]
Jan 27 08:18:07 nsh-ubuntu kernel: [  263.980146]  [<ffffffffa007fefa>] ttm_bo_delayed_workqueue+0x1a/0x40 [ttm]
Jan 27 08:18:07 nsh-ubuntu kernel: [  263.980150]  [<ffffffff81073865>] run_workqueue+0x95/0x170
Jan 27 08:18:07 nsh-ubuntu kernel: [  263.980153]  [<ffffffff810739e4>] worker_thread+0xa4/0x120
Jan 27 08:18:07 nsh-ubuntu kernel: [  263.980156]  [<ffffffff81078b90>] ? autoremove_wake_function+0x0/0x40
Jan 27 08:18:07 nsh-ubuntu kernel: [  263.980159]  [<ffffffff81073940>] ? worker_thread+0x0/0x120
Jan 27 08:18:07 nsh-ubuntu kernel: [  263.980162]  [<ffffffff810787a6>] kthread+0xa6/0xb0
Jan 27 08:18:07 nsh-ubuntu kernel: [  263.980165]  [<ffffffff8101312a>] child_rip+0xa/0x20
Jan 27 08:18:07 nsh-ubuntu kernel: [  263.980168]  [<ffffffff81078700>] ? kthread+0x0/0xb0
Jan 27 08:18:07 nsh-ubuntu kernel: [  263.980170]  [<ffffffff81013120>] ? child_rip+0x0/0x20
Jan 27 08:18:07 nsh-ubuntu kernel: [  263.980172] ---[ end trace c31a867b7006f62a ]---

This time it was followed by:  

Jan 27 08:18:07 nsh-ubuntu kernel: [  263.980238] CPU 0 
Jan 27 08:18:07 nsh-ubuntu kernel: [  263.980240] Modules linked in: binfmt_misc vboxnetflt vboxnetadp vboxdrv kvm_intel kvm snd_hda_codec_analog snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_dummy snd_seq_oss ppdev iptable_filter snd_seq_midi ip_tables x_tables gspca_zc3xx gspca_main videodev v4l1_compat v4l2_compat_ioctl32 pl2303 usbserial snd_rawmidi snd_seq_midi_event psmouse serio_raw parport_pc dell_wmi dcdbas lp parport snd_seq snd_timer snd_seq_device snd soundcore snd_page_alloc usbhid dm_raid45 xor fbcon tileblit font bitblit softcursor radeon ttm drm i2c_algo_bit floppy tg3 intel_agp
Jan 27 08:18:07 nsh-ubuntu kernel: [  263.980275] Pid: 9, comm: events/0 Tainted: G        W  2.6.31-18-generic #55-Ubuntu OptiPlex 745                 
Jan 27 08:18:07 nsh-ubuntu kernel: [  263.980277] RIP: 0010:[<ffffffff81114b3c>]  [<ffffffff81114b3c>] kfree+0x12c/0x140
Jan 27 08:18:07 nsh-ubuntu kernel: [  263.980283] RSP: 0018:ffff880137a91d10  EFLAGS: 00010246
Jan 27 08:18:07 nsh-ubuntu kernel: [  263.980285] RAX: 0100000000000000 RBX: ffffffffa00b35d3 RCX: ffff8800aed00128
Jan 27 08:18:07 nsh-ubuntu kernel: [  263.980287] RDX: 0000000000576cb8 RSI: ffffea000263f908 RDI: ffff8800aed97e00
Jan 27 08:18:07 nsh-ubuntu kernel: [  263.980289] RBP: ffff880137a91d30 R08: 0000000000000000 R09: 0000000000000000
Jan 27 08:18:07 nsh-ubuntu kernel: [  263.980291] R10: 0000000000000594 R11: 0000000000000000 R12: ffff8800aed97e00
Jan 27 08:18:07 nsh-ubuntu kernel: [  263.980293] R13: ffff8800aed97e3c R14: ffff8800aed97e3c R15: ffff880134c3f7a8
Jan 27 08:18:07 nsh-ubuntu kernel: [  263.980295] FS:  0000000000000000(0000) GS:ffff880028022000(0000) knlGS:0000000000000000
Jan 27 08:18:07 nsh-ubuntu kernel: [  263.980297] CS:  0010 DS: 0018 ES: 0018 CR0: 000000008005003b
Jan 27 08:18:07 nsh-ubuntu kernel: [  263.980299] CR2: 00007f7b37a18000 CR3: 000000011fd3f000 CR4: 00000000000026f0
Jan 27 08:18:07 nsh-ubuntu kernel: [  263.980301] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
Jan 27 08:18:07 nsh-ubuntu kernel: [  263.980303] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Jan 27 08:18:07 nsh-ubuntu kernel: [  263.980306] Process events/0 (pid: 9, threadinfo ffff880137a90000, task ffff880137a85ac0)
Jan 27 08:18:07 nsh-ubuntu kernel: [  263.980309]  ffff880134c3f4a0 ffff8800aed97e00 ffff880134c3f330 ffff8800aed97e3c
Jan 27 08:18:07 nsh-ubuntu kernel: [  263.980312] <0> ffff880137a91d50 ffffffffa00b35d3 ffff880137a91da0 ffff8800aed97e00
Jan 27 08:18:07 nsh-ubuntu kernel: [  263.980316] <0> ffff880137a91d80 ffffffffa007ec6a ffff88011ec2c410 ffff8800aed97e3c
Jan 27 08:18:07 nsh-ubuntu kernel: [  263.980339]  [<ffffffffa00b35d3>] radeon_ttm_object_object_destroy+0x43/0x50 [radeon]
Jan 27 08:18:07 nsh-ubuntu kernel: [  263.980346]  [<ffffffffa007ec6a>] ttm_bo_release_list+0x8a/0xe0 [ttm]
Jan 27 08:18:07 nsh-ubuntu kernel: [  263.980351]  [<ffffffffa007ebe0>] ? ttm_bo_release_list+0x0/0xe0 [ttm]
Jan 27 08:18:07 nsh-ubuntu kernel: [  263.980354]  [<ffffffff81279b87>] kref_put+0x37/0x70
Jan 27 08:18:07 nsh-ubuntu kernel: [  263.980359]  [<ffffffffa007fe27>] ttm_bo_delayed_delete+0xc7/0x180 [ttm]
Jan 27 08:18:07 nsh-ubuntu kernel: [  263.980364]  [<ffffffffa007fee0>] ? ttm_bo_delayed_workqueue+0x0/0x40 [ttm]
Jan 27 08:18:07 nsh-ubuntu kernel: [  263.980369]  [<ffffffffa007fefa>] ttm_bo_delayed_workqueue+0x1a/0x40 [ttm]
Jan 27 08:18:07 nsh-ubuntu kernel: [  263.980373]  [<ffffffff81073865>] run_workqueue+0x95/0x170
Jan 27 08:18:07 nsh-ubuntu kernel: [  263.980375]  [<ffffffff810739e4>] worker_thread+0xa4/0x120
Jan 27 08:18:07 nsh-ubuntu kernel: [  263.980378]  [<ffffffff81078b90>] ? autoremove_wake_function+0x0/0x40
Jan 27 08:18:07 nsh-ubuntu kernel: [  263.980381]  [<ffffffff81073940>] ? worker_thread+0x0/0x120
Jan 27 08:18:07 nsh-ubuntu kernel: [  263.980384]  [<ffffffff810787a6>] kthread+0xa6/0xb0
Jan 27 08:18:07 nsh-ubuntu kernel: [  263.980387]  [<ffffffff8101312a>] child_rip+0xa/0x20
Jan 27 08:18:07 nsh-ubuntu kernel: [  263.980390]  [<ffffffff81078700>] ? kthread+0x0/0xb0
Jan 27 08:18:07 nsh-ubuntu kernel: [  263.980392]  [<ffffffff81013120>] ? child_rip+0x0/0x20
Jan 27 08:18:07 nsh-ubuntu kernel: [  263.980428]  RSP <ffff880137a91d10>
Jan 27 08:18:07 nsh-ubuntu kernel: [  263.980430] ---[ end trace c31a867b7006f62b ]---

Swap spontaneous filled up over 10 minutes until the machine was powered off.

Comment 3 Alan 2012-06-14 10:06:31 UTC

Reassigning to the DRI layer

I'll also close this as it doesn't provide any useful replication info and it is versus an old kernel so it doesn't really have any obvious use to us any more.

Tnanks for reporting it.

Alan

Note You need to log in before you can comment on or make changes to this bug.