[arch-general] short hangs

goodmenzy at gmail.com goodmenzy at gmail.com
Wed Jul 3 20:45:59 EDT 2013

On 2013-07-04 01:23:00, coderkun wrote:
> Date: Thu, 04 Jul 2013 01:23:00 +0200
> From: coderkun <olli at coderkun.de>
> To: arch-general at archlinux.org
> Subject: Re: [arch-general] short hangs
> X-Mailer: Evolution 3.8.3 
> Am Mittwoch, den 03.07.2013, 16:13 -0400 schrieb Scott Lawrence:
> > My experience is that freezes are almost always associated with the hard drive 
> > having spun down, and needing to spin up before something can be read from the 
> > disk. (It just happened, as I was typing that sentence.) Tweak power settings 
> > to make spin-downs more rare, or banish them altogether if you're willing to 
> > take a minor hit to power consumption.
> This my experience, too.
> I had similar symtoms on my machine and suspected the Gnome-Shell. But
> then I found out that my harddrive doesn’t support the “min_power”
> policy (only “medium_power”) which I had activated through an udev rule.

   I have the almost same issue about several months. When this happen, ssh to the machine
and run "cat /proc/`pidof X`/stack", it shows that the X sever has been stucked.

   For me, it will last about 3--5 minutes. This bug has been reported to freedesktop:

[<ffffffffa050d83c>] radeon_fence_wait_seq+0x1dc/0x600 [radeon]
[<ffffffffa050e26b>] radeon_fence_wait+0x2b/0x60 [radeon]
[<ffffffffa050e941>] radeon_sync_obj_wait+0x11/0x20 [radeon]
[<ffffffffa046b811>] ttm_bo_wait+0x91/0x190 [ttm]
[<ffffffffa046eefc>] ttm_bo_move_accel_cleanup+0x9c/0x350 [ttm]
[<ffffffffa050ee22>] radeon_move_blit.isra.7+0xc2/0x160 [radeon]
[<ffffffffa050f70a>] radeon_bo_move+0xaa/0x1e0 [radeon]
[<ffffffffa046d065>] ttm_bo_handle_move_mem+0x255/0x5f0 [ttm]
[<ffffffffa046d592>] ttm_bo_evict+0x192/0x360 [ttm]
[<ffffffffa046d8be>] ttm_mem_evict_first+0x15e/0x200 [ttm]
[<ffffffffa046dc11>] ttm_bo_mem_space+0x2b1/0x360 [ttm]
[<ffffffffa046e26a>] ttm_bo_move_buffer+0xca/0x150 [ttm]
[<ffffffffa046e38a>] ttm_bo_validate+0x9a/0x110 [ttm]
[<ffffffffa046e6b9>] ttm_bo_init+0x2b9/0x3d0 [ttm]
[<ffffffffa0510160>] radeon_bo_create+0x180/0x250 [radeon]
[<ffffffffa0521f9b>] radeon_gem_object_create+0x9b/0x160 [radeon]
[<ffffffffa05223b0>] radeon_gem_create_ioctl+0x60/0x140 [radeon]
[<ffffffffa03fb1c1>] drm_ioctl+0x4d1/0x580 [drm]
[<ffffffff8119d135>] do_vfs_ioctl+0x2e5/0x4d0
[<ffffffff8119d3a1>] sys_ioctl+0x81/0xa0
[<ffffffff814da1dd>] system_call_fastpath+0x1a/0x1f
[<ffffffffffffffff>] 0xffffffffffffffff

Maybe my info can help the community

> Regards,
> coderkun

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