radeon causing sleeping function called from invalid context

[Daniel Vetter]

On Fri, Feb 08, 2013 at 10:47:42AM +0300, Sergey Senozhatsky wrote:
> On (02/07/13 22:53), Andreas Bombe wrote:
> > On Sun, Jan 13, 2013 at 02:38:20PM +0300, Sergey Senozhatsky wrote:
> > > On (01/12/13 20:27), Dave Jones wrote:
> > > > BUG: sleeping function called from invalid context at mm/slub.c:925
> > > > in_atomic(): 1, irqs_disabled(): 0, pid: 566, name: Xorg
> > > > INFO: lockdep is turned off.
> > > > Pid: 566, comm: Xorg Not tainted 3.8.0-rc3+ #49
> > > > Call Trace:
> > > >  [<ffffffff81087ad1>] __might_sleep+0x141/0x200
> > > >  [<ffffffff8119eddb>] kmem_cache_alloc_trace+0x4b/0x2a0
> > > >  [<ffffffffa0083fb3>] ttm_bo_move_accel_cleanup+0x1d3/0x330 [ttm]
> > > >  [<ffffffffa00c5418>] radeon_move_blit.isra.4+0xf8/0x160 [radeon]
> > > >  [<ffffffffa00c5db0>] radeon_bo_move+0xb0/0x1f0 [radeon]
> > > >  [<ffffffffa00820ed>] ttm_bo_handle_move_mem+0x27d/0x5d0 [ttm]
> > > >  [<ffffffff8108dd51>] ? get_parent_ip+0x11/0x50
> > > >  [<ffffffffa0083307>] ttm_bo_move_buffer+0x127/0x140 [ttm]
> > > >  [<ffffffffa008717d>] ? ttm_eu_list_ref_sub+0x3d/0x60 [ttm]
> > > >  [<ffffffffa00833c2>] ttm_bo_validate+0xa2/0x120 [ttm]
> > > >  [<ffffffffa00c6f45>] radeon_bo_list_validate+0x75/0x90 [radeon]
> > > >  [<ffffffffa00dca22>] radeon_cs_ioctl+0x582/0x950 [radeon]
> > > >  [<ffffffffa002e573>] drm_ioctl+0x4d3/0x580 [drm]
> > > >  [<ffffffffa00dc4a0>] ? radeon_cs_finish_pages+0xf0/0xf0 [radeon]
> > > >  [<ffffffff811c49f9>] do_vfs_ioctl+0x99/0x5a0
> > > >  [<ffffffff812cd3d7>] ? file_has_perm+0x97/0xb0
> > > >  [<ffffffff81103715>] ? rcu_eqs_exit+0x65/0xb0
> > > >  [<ffffffff811c4f91>] sys_ioctl+0x91/0xb0
> > > >  [<ffffffff81695ad4>] tracesys+0xdd/0xe2
> > > > 
> > > 
> > > I see lots of these [mostly from page fault], the following one (quick and dirty) works for me.
> > 
> > Is that patch or any other fix being picked up? It's over three weeks
> > now and I'm still seeing those BUGs with the latest 3.8-rc.
> > 
> 
> None that I'm aware of.

Either this one

https://patchwork.kernel.org/patch/2094501/

or a bit an older approach here

https://patchwork.kernel.org/patch/1972071/

should fix this.

/me looks at Dave

Cheers, Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch