freebsd7 (and 8), radeon, xorg-server -> deadlock or so
Norbert Papke
npapke at acm.org
Sat Feb 13 23:12:58 UTC 2010
On February 13, 2010, Robert Noland wrote:
> On Sat, 2010-02-13 at 11:37 -0800, Norbert Papke wrote:
> > On February 13, 2010, Robert Noland wrote:
> > > Ok, I've put up a patch at:
> > >
> > > http://people.freebsd.org/~rnoland/drm-radeon-test.patch
>
> http://people.freebsd.org/~rnoland/drm-radeon-8-test.patch
>
> This one should work on 8...
Thanks, the patch applies and builds cleanly.
Unfortunately, it does not fix things for me.
I am back to completely hanging the system. I getting
the sense that there is some randomness or a timing issue.
Changes that improved the behavior in one trial do not
necessarily help in another trial.
One thing I did is enable DRM_DEBUG. I wanted to get
sense of how far we got before the hang. Unfortunately,
there is no guarantee that log messages will be persisted
before the system hangs. In a few attempts, the latest
messages I observed were the following:
Feb 13 13:37:58 proven kernel: [drm:pid41750:r600_do_init_cp] dev->agp_buffer_map->virtual 0xffffff807a51b000
Feb 13 13:37:58 proven kernel: info: [drm] Setting GART location based on new memory map
Feb 13 13:37:58 proven kernel: [drm:pid41750:r600_do_init_cp] fb 0xd0000000 size 536870912
Feb 13 13:37:58 proven kernel: [drm:pid41750:r600_do_init_cp] dev_priv->gart_size 33554432
Feb 13 13:37:58 proven kernel: [drm:pid41750:r600_do_init_cp] dev_priv->gart_vm_start 0xf0000000
Feb 13 13:37:58 proven kernel: [drm:pid41750:r600_do_init_cp] dev_priv->gart_buffers_offset 0xf0102000
Feb 13 13:37:58 proven kernel: [drm:pid41750:r600_do_init_cp] Using gart offset 0x0fff0000
Feb 13 13:37:58 proven kernel: [drm:pid41750:r600_do_init_cp] Setting phys_pci_gart to 0xffffff00dfff0000 0FFF0000
Feb 13 13:37:58 proven kernel: [drm:pid41750:r600_page_table_init] page entry 0: 0x00000000b956c063
Feb 13 13:37:58 proven kernel: [drm:pid41750:r600_page_table_init] page entry 128: 0x0000000082128063
Feb 13 13:37:58 proven kernel: [drm:pid41750:r600_page_table_init] page entry 256: 0x0000000098b8a063
[...]
Feb 13 13:37:58 proven kernel: [drm:pid41750:r600_page_table_init] page entry 7936: 0x00000000499df063
Feb 13 13:37:58 proven kernel: [drm:pid41750:r600_page_table_init] page entry 8064: 0x0000000049a21063
Feb 13 13:37:58 proven kernel: info: [drm] Loading RV635 Microcode
Feb 13 13:37:58 proven kernel: [drm:pid41750:r600_do_cp_stop]
I will repeat the experiment a few more times.
Cheers.
-- Norbert Papke.
npapke at acm.org
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