Re: i915 #GP [was: mmotm 2010-02-01-16-25 uploaded]

[Jiri Slaby]

On 02/03/2010 10:41 PM, Jiri Slaby wrote:
> On 02/02/2010 01:25 AM, akpm@xxxxxxxxxxxxxxxxxxxx wrote:
>> The mm-of-the-moment snapshot 2010-02-01-16-25 has been uploaded to
> 
> Hi, when thunderbird appears on clean X+xterm I get this with the snapshot:
> [drm:i915_gem_do_execbuffer] *ERROR* Invalid object handle 1073741824 at
> index 1
> general protection fault: 0000 [#1] SMP
> last sysfs file: /sys/devices/pci0000:00/0000:00:1e.0/0000:04:00.0/resource
> CPU 0
> Pid: 3412, comm: X Not tainted 2.6.33-rc6-mm1_64+ #941 To be filled by
> O.E.M./To Be Filled By O.E.M.
> RIP: 0010:[<ffffffff812579ef>]  [<ffffffff812579ef>]
> i915_gem_do_execbuffer+0x3ef/0xbf0
> RSP: 0018:ffff8801c2313c68  EFLAGS: 00010202
> RAX: ffff8801c2f6a7c8 RBX: 0000000000000002 RCX: 0000000000000049
> RDX: 6b6b6b6b6b6b6b6b RSI: ffffffff81237e70 RDI: ffff8801c2a28738
> RBP: ffff8801c2313d18 R08: 0000000000000000 R09: 0000000002000000
> R10: 0000000000000000 R11: 0000000000000004 R12: ffff8801c2f6a7b8
> R13: ffff8801c2313d38 R14: 0000000000000000 R15: 00000000fffffff7
> FS:  00007f4910c476f0(0000) GS:ffff880100200000(0000) knlGS:0000000000000000
> CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> CR2: 00007f48fb928000 CR3: 00000001c2cd5000 CR4: 00000000000006f0
> DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
> Process X (pid: 3412, threadinfo ffff8801c2312000, task ffff8801c3539c00)
> Stack:
>  ffffffff81803580 00000000000000d0 ffff8801c2e043d8 0000000000d7ba90
> <0> 0000000000000060 ffffffff810be556 ffff8801c5f918f8 ffff8801c2f6a7b8
> <0> ffff8801cbc0a048 0000000000000000 ffff8801c2f6a7b8 ffff8801c5f918d8
> Call Trace:
>  [<ffffffff810be556>] ? __slab_alloc+0x266/0x2f0
>  [<ffffffff81258584>] i915_gem_execbuffer+0x1b4/0x360
>  [<ffffffff81253516>] ? i915_gem_sw_finish_ioctl+0x96/0xd0
>  [<ffffffff812363ed>] drm_ioctl+0x1bd/0x480
>  [<ffffffff8108fe12>] ? unlock_page+0x22/0x30
>  [<ffffffff812583d0>] ? i915_gem_execbuffer+0x0/0x360
>  [<ffffffff810a9dbb>] ? handle_mm_fault+0x18b/0x3c0
>  [<ffffffff810d7468>] vfs_ioctl+0x38/0xd0
>  [<ffffffff810d7ca0>] do_vfs_ioctl+0x80/0x340
>  [<ffffffff81024841>] ? do_page_fault+0x131/0x2d0
>  [<ffffffff810d7faa>] sys_ioctl+0x4a/0x80
>  [<ffffffff81002e6b>] system_call_fastpath+0x16/0x1b
> Code: 44 8b 5a 08 45 85 db 74 4f 31 db 4c 8b 65 a0 49 89 d5 66 2e 0f 1f
> 84 00 00 00 00 00 48 63 c3 49 8d 04 c4 48 8b 10 48 85 d2 74 25 <48> 8b
> 92 80 00 00 00 c7 82 a0 00 00 00 00 00 00 00 48 8b 38 48
> RIP  [<ffffffff812579ef>] i915_gem_do_execbuffer+0x3ef/0xbf0
>  RSP <ffff8801c2313c68>
> ---[ end trace 99140c91bbc9294a ]---
> 
> 
> opposing to 2010-01-15-15-34 which was OK. This is a setup with no KMS
> with 2.9.1 intel X drv.




> Does reverting 859ddf09743a8cc680af33f7259ccd0fd36bfe9d help?

For me it fixes the problem.

-- 
js
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