Date: Sat, 13 Feb 2010 15:12:56 -0800 From: Norbert Papke <npapke@acm.org> To: Robert Noland <rnoland@freebsd.org> Cc: freebsd-stable@freebsd.org Subject: Re: freebsd7 (and 8), radeon, xorg-server -> deadlock or so Message-ID: <201002131512.57040.npapke@acm.org> In-Reply-To: <1266096425.89452.30.camel@balrog.2hip.net> References: <6101e8c41002091524q25a7e026u585e575eb4f1589c@mail.gmail.com> <201002131137.34812.npapke@acm.org> <1266096425.89452.30.camel@balrog.2hip.net>
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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@acm.org
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