From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ@public.gmane.org Subject: [Bug 85471] New: nouveau/kernel 3.18.0-rc1: nouveau deadlocks on 2nd Xorg start or reboot Date: Sun, 26 Oct 2014 09:37:15 +0000 Message-ID: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0678870544==" Return-path: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: nouveau-bounces-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Sender: "Nouveau" To: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org List-Id: nouveau.vger.kernel.org --===============0678870544== Content-Type: multipart/alternative; boundary="1414316235.bfEd41.549"; charset="UTF-8" --1414316235.bfEd41.549 Date: Sun, 26 Oct 2014 09:37:15 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" https://bugs.freedesktop.org/show_bug.cgi?id=85471 Bug ID: 85471 Summary: nouveau/kernel 3.18.0-rc1: nouveau deadlocks on 2nd Xorg start or reboot Product: xorg Version: unspecified Hardware: x86-64 (AMD64) OS: Linux (All) Status: NEW Severity: major Priority: medium Component: Driver/nouveau Assignee: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Reporter: vogelchr-InfKab39H3A@public.gmane.org QA Contact: xorg-team-go0+a7rfsptAfugRpC6u6w@public.gmane.org Created attachment 108436 --> https://bugs.freedesktop.org/attachment.cgi?id=108436&action=edit Dump of serial console during bootup... up to hang on shutdown. Summary: I can start Xorg *once* just fine, also switch to/from text-consoles. But once this X-server ends, both monitors will turn black and go to powersave. After this has happened, a new X-server will hang. Also a clean reboot is no longer possible, because also the shutdown-code running in the Kernel will hang with a similar stack trace. This bug is reproducible 100%. Hardware: NVIDIA Corporation G86 [Quadro NVS 290] (rev a1) BOOT0 : 0x086f00a2 Chipset: G86 (NV86) Family : NV50 Platform: amd64 Linux-Kernel: 3.18.0-rc1 Distribution: Arch-Linux Xorg server: xorg-server 1.16.1-1 (from Archlinux repository) Xorg driver: xf86-video-nouveau 1.0.11-2 (from Archlinux repository) Everything looks pretty unremarkable while using the computer normally running X which is very stable, can run for days. Also terminating the X server looks uneventful. *** *** Starting the second X-server hangs... *** [root@optiplex ~]# ps axf | grep X 4173 pts/1 D+ 0:00 | \_ /usr/bin/Xorg.wrap [root@optiplex ~]# cat /proc/4173/wchan rpm_resume [root@optiplex ~]# cat /proc/4173/syscall 2 0x7fffc7a788c0 0x2 0x7fffc7a788ce 0x690 0x7f0c3e0ed140 0x0 0x7fffc7a77fb0 0x7f0c3e06a330 [root@optiplex ~]# cat /proc/4173/stack [] rpm_resume+0x220/0x4b7 [] __pm_runtime_resume+0x42/0x5e [] nouveau_drm_open+0x3d/0x249 [] drm_open+0x235/0x43e [] drm_stub_open+0xc1/0xee [] chrdev_open+0x151/0x18b [] do_dentry_open+0x245/0x2b7 [] finish_open+0x35/0x40 [] do_last.isra.32+0x83a/0xa7c [] path_openat+0x218/0x5cd [] do_filp_open+0x49/0xad [] do_sys_open+0x15a/0x1fd [] SyS_open+0x1e/0x20 [] system_call_fastpath+0x12/0x17 [] 0xffffffffffffffff *** *** Alternatively, after a new reboot, not trying to start a 2nd X-server, *** and shutting down the machine, this hangcheck info appears on the serial *** console two minutes after the shutdown... *** [ 240.486671] INFO: task kworker/0:3:126 blocked for more than 120 seconds. [ 240.493460] Not tainted 3.18.0-rc1-cv+ #4 [ 240.497980] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 240.505796] kworker/0:3 D ffff880127c143c0 0 126 2 0x00000000 [ 240.512849] Workqueue: pm pm_runtime_work [ 240.516858] ffff8800cb3cfbd8 0000000000000046 00000000000003ff ffff8800cb3cffd8 [ 240.524264] ffff8800cb1ae5c0 00000000000143c0 ffffffff81a18540 ffff8800cb1ae5c0 [ 240.531668] 0000000000000000 0000000000000000 0000000000000000 0000000000000000 [ 240.539087] Call Trace: [ 240.541538] [] ? cpumask_next_and+0x20/0x3e [ 240.547357] [] ? load_balance+0x20e/0x893 [ 240.552999] [] ? native_sched_clock+0x28/0x93 [ 240.558987] [] schedule+0x69/0x6b [ 240.563936] [] rpm_resume+0x220/0x4b7 [ 240.569231] [] ? __wake_up_sync+0x12/0x12 [ 240.574871] [] pm_runtime_forbid+0x42/0x4f [ 240.580599] [] nouveau_pmops_runtime_suspend+0x32/0xd2 [ 240.587366] [] pci_pm_runtime_suspend+0x63/0x110 [ 240.593612] [] ? pci_legacy_suspend+0xbe/0xbe [ 240.599598] [] __rpm_callback+0x3a/0x62 [ 240.605064] [] rpm_callback+0x74/0x8a [ 240.610357] [] rpm_suspend+0x25b/0x459 [ 240.615738] [] pm_runtime_work+0x7b/0x88 [ 240.621292] [] process_one_work+0x1b5/0x365 [ 240.627105] [] worker_thread+0x29d/0x381 [ 240.632657] [] ? rescuer_thread+0x24c/0x24c [ 240.638472] [] kthread+0xf3/0xfb [ 240.643333] [] ? kthread_create_on_node+0x1a9/0x1a9 [ 240.649839] [] ret_from_fork+0x7c/0xb0 [ 240.655219] [] ? kthread_create_on_node+0x1a9/0x1a9 -- You are receiving this mail because: You are the assignee for the bug. --1414316235.bfEd41.549 Date: Sun, 26 Oct 2014 09:37:15 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8"
Bug ID 85471
Summary nouveau/kernel 3.18.0-rc1: nouveau deadlocks on 2nd Xorg start or reboot
Product xorg
Version unspecified
Hardware x86-64 (AMD64)
OS Linux (All)
Status NEW
Severity major
Priority medium
Component Driver/nouveau
Assignee nouveau@lists.freedesktop.org
Reporter vogelchr@vogel.cx
QA Contact xorg-team@lists.x.org 

Created attachment 108436 [details]
Dump of serial console during bootup... up to hang on shutdown.

Summary: I can start Xorg *once* just fine, also switch to/from text-consoles.
But once this X-server ends, both monitors will turn black and go to powersave.

After this has happened, a new X-server will hang. Also a clean reboot is no
longer possible, because also the shutdown-code running in the Kernel will hang
with a similar stack trace.

This bug is reproducible 100%.

Hardware: NVIDIA Corporation G86 [Quadro NVS 290] (rev a1)
          BOOT0  : 0x086f00a2
          Chipset: G86 (NV86)
          Family : NV50

Platform:     amd64
Linux-Kernel: 3.18.0-rc1
Distribution: Arch-Linux

Xorg server: xorg-server 1.16.1-1 (from Archlinux repository)
Xorg driver: xf86-video-nouveau 1.0.11-2 (from Archlinux repository)

Everything looks pretty unremarkable while using the computer normally running
X which is very stable, can run for days. Also terminating the X server looks
uneventful.

***
*** Starting the second X-server hangs...
***

[root@optiplex ~]# ps axf | grep X
 4173 pts/1    D+     0:00  |                   \_ /usr/bin/Xorg.wrap

[root@optiplex ~]# cat /proc/4173/wchan 
rpm_resume

[root@optiplex ~]# cat /proc/4173/syscall 
2 0x7fffc7a788c0 0x2 0x7fffc7a788ce 0x690 0x7f0c3e0ed140 0x0 0x7fffc7a77fb0
0x7f0c3e06a330

[root@optiplex ~]# cat /proc/4173/stack 
[<ffffffff8146b222>] rpm_resume+0x220/0x4b7
[<ffffffff8146b4fb>] __pm_runtime_resume+0x42/0x5e
[<ffffffff8143064d>] nouveau_drm_open+0x3d/0x249
[<ffffffff8138fc3d>] drm_open+0x235/0x43e
[<ffffffff8139543f>] drm_stub_open+0xc1/0xee
[<ffffffff81169cb1>] chrdev_open+0x151/0x18b
[<ffffffff81163cde>] do_dentry_open+0x245/0x2b7
[<ffffffff81163fb3>] finish_open+0x35/0x40
[<ffffffff81171e14>] do_last.isra.32+0x83a/0xa7c
[<ffffffff8117226e>] path_openat+0x218/0x5cd
[<ffffffff811735fd>] do_filp_open+0x49/0xad
[<ffffffff81164fec>] do_sys_open+0x15a/0x1fd
[<ffffffff811650ad>] SyS_open+0x1e/0x20
[<ffffffff815c7529>] system_call_fastpath+0x12/0x17
[<ffffffffffffffff>] 0xffffffffffffffff

***
*** Alternatively, after a new reboot, not trying to start a 2nd X-server,
*** and shutting down the machine, this hangcheck info appears on the serial
*** console two minutes after the shutdown...
***

[  240.486671] INFO: task kworker/0:3:126 blocked for more than 120 seconds.
[  240.493460]       Not tainted 3.18.0-rc1-cv+ #4
[  240.497980] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this
message.
[  240.505796] kworker/0:3     D ffff880127c143c0     0   126      2 0x00000000
[  240.512849] Workqueue: pm pm_runtime_work
[  240.516858]  ffff8800cb3cfbd8 0000000000000046 00000000000003ff
ffff8800cb3cffd8
[  240.524264]  ffff8800cb1ae5c0 00000000000143c0 ffffffff81a18540
ffff8800cb1ae5c0
[  240.531668]  0000000000000000 0000000000000000 0000000000000000
0000000000000000
[  240.539087] Call Trace:
[  240.541538]  [<ffffffff812b3001>] ? cpumask_next_and+0x20/0x3e
[  240.547357]  [<ffffffff81082838>] ? load_balance+0x20e/0x893
[  240.552999]  [<ffffffff81019bd3>] ? native_sched_clock+0x28/0x93
[  240.558987]  [<ffffffff815c3e43>] schedule+0x69/0x6b
[  240.563936]  [<ffffffff8146b222>] rpm_resume+0x220/0x4b7
[  240.569231]  [<ffffffff81088191>] ? __wake_up_sync+0x12/0x12
[  240.574871]  [<ffffffff8146b710>] pm_runtime_forbid+0x42/0x4f
[  240.580599]  [<ffffffff8142f6cd>] nouveau_pmops_runtime_suspend+0x32/0xd2
[  240.587366]  [<ffffffff812e2972>] pci_pm_runtime_suspend+0x63/0x110
[  240.593612]  [<ffffffff812e290f>] ? pci_legacy_suspend+0xbe/0xbe
[  240.599598]  [<ffffffff8146a40c>] __rpm_callback+0x3a/0x62
[  240.605064]  [<ffffffff8146a4a8>] rpm_callback+0x74/0x8a
[  240.610357]  [<ffffffff8146aa60>] rpm_suspend+0x25b/0x459
[  240.615738]  [<ffffffff8146b9d5>] pm_runtime_work+0x7b/0x88
[  240.621292]  [<ffffffff8106a735>] process_one_work+0x1b5/0x365
[  240.627105]  [<ffffffff8106b281>] worker_thread+0x29d/0x381
[  240.632657]  [<ffffffff8106afe4>] ? rescuer_thread+0x24c/0x24c
[  240.638472]  [<ffffffff8106ed95>] kthread+0xf3/0xfb
[  240.643333]  [<ffffffff8106eca2>] ? kthread_create_on_node+0x1a9/0x1a9
[  240.649839]  [<ffffffff815c747c>] ret_from_fork+0x7c/0xb0
[  240.655219]  [<ffffffff8106eca2>] ? kthread_create_on_node+0x1a9/0x1a9

You are receiving this mail because:
  • You are the assignee for the bug.
--1414316235.bfEd41.549-- --===============0678870544== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Nouveau mailing list Nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org http://lists.freedesktop.org/mailman/listinfo/nouveau --===============0678870544==--