From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ@public.gmane.org Subject: [Bug 71620] New: nouveau_fence_wait_uevent NULL pointer dereference Date: Thu, 14 Nov 2013 18:55:54 +0000 Message-ID: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1562120352==" Return-path: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: nouveau-bounces-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Errors-To: nouveau-bounces-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org To: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org List-Id: nouveau.vger.kernel.org --===============1562120352== Content-Type: multipart/alternative; boundary="1384455354.0F6adCcA0.16739"; charset="us-ascii" --1384455354.0F6adCcA0.16739 Date: Thu, 14 Nov 2013 18:55:54 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" https://bugs.freedesktop.org/show_bug.cgi?id=71620 Priority: medium Bug ID: 71620 Assignee: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Summary: nouveau_fence_wait_uevent NULL pointer dereference Severity: normal Classification: Unclassified OS: Linux (All) Reporter: kdatanasov-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org Hardware: x86-64 (AMD64) Status: NEW Version: unspecified Component: Drivers/DRI/nouveau Product: Mesa Created attachment 89234 --> https://bugs.freedesktop.org/attachment.cgi?id=89234&action=edit patch_to_protect_fence_channel Upon normal computer operation user session(GNOME-Shell) sometimes will just terminate. Problem seems more common if two users are logged in(GNOME-Shell) for a day. GPU: NVIDIA Corporation C77 [GeForce 8300] (rev a2) kernel version: 3.12.0-upstream Relevent dmesg output: [29434.602169] Call Trace: [29434.602188] [] ? nouveau_fence_wait_uevent.isra.1+0x1b/0x3f0 [nouveau] [29434.602208] [] ? nouveau_fence_update+0x76/0x90 [nouveau] [29434.602228] [] nouveau_fence_wait+0x86/0x1a0 [nouveau] [29434.602248] [] nouveau_bo_fence_wait+0x15/0x20 [nouveau] [29434.602260] [] ttm_bo_wait+0x91/0x190 [ttm] [29434.602279] [] nouveau_gem_ioctl_cpu_prep+0x57/0xe0 [nouveau] [29434.602294] [] drm_ioctl+0x502/0x630 [drm] [29434.602313] [] nouveau_drm_ioctl+0x51/0x90 [nouveau] [29434.602324] [] do_vfs_ioctl+0x2e0/0x4c0 [29434.602332] [] ? ____fput+0xe/0x10 [29434.602340] [] ? task_work_run+0xa4/0xe0 [29434.602347] [] SyS_ioctl+0x81/0xa0 [29434.602356] [] system_call_fastpath+0x1a/0x1f [29434.602364] Code: c3 0f 1f 84 00 00 00 00 00 66 66 66 66 90 55 48 89 e5 41 57 49 89 f7 41 56 41 55 41 54 41 89 d4 53 48 89 fb 48 83 ec 58 48 8b 07 <48> 8b 48 08 48 8b 91 f8 00 00 00 4c 8b b1 b0 07 00 00 48 8b 42 I'm trying some change(adding it as patch) - no problem so far, but since I have zero experience in kernel/driver workflow definitely not sure if it's OK. Regards, K -- You are receiving this mail because: You are the assignee for the bug. --1384455354.0F6adCcA0.16739 Date: Thu, 14 Nov 2013 18:55:54 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8"
Priority medium
Bug ID 71620
Assignee nouveau@lists.freedesktop.org
Summary nouveau_fence_wait_uevent NULL pointer dereference
Severity normal
Classification Unclassified
OS Linux (All)
Reporter kdatanasov@gmail.com
Hardware x86-64 (AMD64)
Status NEW
Version unspecified
Component Drivers/DRI/nouveau
Product Mesa 

Created attachment 89234 [details]
patch_to_protect_fence_channel

Upon normal computer operation user session(GNOME-Shell) sometimes will just
terminate. Problem seems more common if two users are logged in(GNOME-Shell)
for a day.

GPU:
NVIDIA Corporation C77 [GeForce 8300] (rev a2)

kernel version:
3.12.0-upstream

Relevent dmesg output:
[29434.602169] Call Trace:
[29434.602188]  [<ffffffffa010b6db>] ?
nouveau_fence_wait_uevent.isra.1+0x1b/0x3f0 [nouveau]
[29434.602208]  [<ffffffffa010b676>] ? nouveau_fence_update+0x76/0x90 [nouveau]
[29434.602228]  [<ffffffffa010bb36>] nouveau_fence_wait+0x86/0x1a0 [nouveau]
[29434.602248]  [<ffffffffa010d7a5>] nouveau_bo_fence_wait+0x15/0x20 [nouveau]
[29434.602260]  [<ffffffffa00658a1>] ttm_bo_wait+0x91/0x190 [ttm]
[29434.602279]  [<ffffffffa0112e57>] nouveau_gem_ioctl_cpu_prep+0x57/0xe0
[nouveau]
[29434.602294]  [<ffffffffa0010c52>] drm_ioctl+0x502/0x630 [drm]
[29434.602313]  [<ffffffffa0108d11>] nouveau_drm_ioctl+0x51/0x90 [nouveau]
[29434.602324]  [<ffffffff811b3690>] do_vfs_ioctl+0x2e0/0x4c0
[29434.602332]  [<ffffffff811a2e2e>] ? ____fput+0xe/0x10
[29434.602340]  [<ffffffff81080544>] ? task_work_run+0xa4/0xe0
[29434.602347]  [<ffffffff811b38f1>] SyS_ioctl+0x81/0xa0
[29434.602356]  [<ffffffff814f81ad>] system_call_fastpath+0x1a/0x1f
[29434.602364] Code: c3 0f 1f 84 00 00 00 00 00 66 66 66 66 90 55 48 89 e5 41
57 49 89 f7 41 56 41 55 41 54 41 89 d4 53 48 89 fb 48 83 ec 58 48 8b 07 <48> 8b
48 08 48 8b 91 f8 00 00 00 4c 8b b1 b0 07 00 00 48 8b 42 

I'm trying some change(adding it as patch) - no problem so far, but since I
have zero experience in kernel/driver workflow definitely not sure if it's OK.

Regards, K

You are receiving this mail because:
  • You are the assignee for the bug.
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