Created attachment 30104 [details] Kernel log I've got this BUG twice in the last couple of days. I'm running the latest git kernel (rc3), xf86-video-ati, mesa and libdrm. This happens in KMS mode in the middle of the night. After the BUG happens the machine kept running and it is only in the morning, when I exit the screensaver, that the machine hangs. Oct 06 04:51:26 [kernel] BUG: unable to handle kernel NULL pointer dereference at 0000000000000168 Oct 06 04:51:26 [kernel] IP: [<ffffffff811ee10c>] radeon_object_list_unreserve+0x13/0x34 Oct 06 04:51:26 [kernel] PGD 11e64c067 PUD 11d3f4067 PMD 0 Oct 06 04:51:26 [kernel] CPU 1 Oct 06 04:51:26 [kernel] Pid: 1899, comm: X Not tainted 2.6.32-rc3-00049-g19d031e #6 System Product Name Oct 06 04:51:26 [kernel] RIP: 0010:[<ffffffff811ee10c>] [<ffffffff811ee10c>] radeon_object_list_unreserve+0x13/0x34 Oct 06 04:51:26 [kernel] RSP: 0018:ffff88011e7a1c68 EFLAGS: 00010206 Oct 06 04:51:26 [kernel] RAX: ffff88011fa94930 RBX: ffff88011f2a8d78 RCX: 0000000000000000 Oct 06 04:51:26 [kernel] RDX: ffff88011d977850 RSI: 0000000000000286 RDI: 0000000000000000 Oct 06 04:51:26 [kernel] RBP: ffff88011e7a1c78 R08: 0000000000000000 R09: ffff880028292180 Oct 06 04:51:26 [kernel] R10: 000000173396cc90 R11: ffff88011f962f00 R12: ffff88011e7a1d18 Oct 06 04:51:26 [kernel] R13: ffff88011f2a8000 R14: 0000000000000000 R15: ffffffff811f9ef1 Oct 06 04:51:26 [kernel] FS: 00007f24d1ad96f0(0000) GS:ffff880028280000(0000) knlGS:0000000000000000 Oct 06 04:51:26 [kernel] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Oct 06 04:51:26 [kernel] CR2: 0000000000000168 CR3: 000000011c872000 CR4: 00000000000006e0 Oct 06 04:51:26 [kernel] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Oct 06 04:51:26 [kernel] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Oct 06 04:51:26 [kernel] Process X (pid: 1899, threadinfo ffff88011e7a0000, task ffff88011f9dc1d0) Oct 06 04:51:26 [kernel] ffff88011e7a1cd8 ffff88011f2a8dd8 ffff88011e7a1c88 ffffffff811ee136 Oct 06 04:51:26 [kernel] <0> ffff88011e7a1cb8 ffffffff811f99a6 ffff88011e7a1cd8 ffff88011e7a1cd8 Oct 06 04:51:26 [kernel] <0> ffff88011f2a8dd8 ffff88011f2a8000 ffff88011e7a1d68 ffffffff811fa06b Oct 06 04:51:26 [kernel] [<ffffffff811ee136>] radeon_object_list_clean+0x9/0xb Oct 06 04:51:26 [kernel] [<ffffffff811f99a6>] radeon_cs_parser_fini+0x24/0xf9 Oct 06 04:51:26 [kernel] [<ffffffff811fa06b>] radeon_cs_ioctl+0x17a/0x193 Oct 06 04:51:26 [kernel] [<ffffffff811bb625>] drm_ioctl+0x223/0x2c9 Oct 06 04:51:26 [kernel] [<ffffffff810a7c32>] ? do_sync_read+0xe3/0x120 Oct 06 04:51:26 [kernel] [<ffffffff810b377e>] vfs_ioctl+0x6a/0x82 Oct 06 04:51:26 [kernel] [<ffffffff810b3c80>] do_vfs_ioctl+0x473/0x4b9 Oct 06 04:51:26 [kernel] [<ffffffff810b3d08>] sys_ioctl+0x42/0x65 Oct 06 04:51:26 [kernel] [<ffffffff810284eb>] system_call_fastpath+0x16/0x1b Oct 06 04:51:26 [kernel] RIP [<ffffffff811ee10c>] radeon_object_list_unreserve+0x13/0x34 Oct 06 04:51:26 [kernel] RSP <ffff88011e7a1c68> Oct 06 04:51:26 [kernel] ---[ end trace fa4572652ee9a268 ]--- Oct 06 04:51:26 [kernel] Unpin not necessary for ffff88011d976800 ! Oct 06 04:51:26 [kernel] [drm:drm_release] *ERROR* Device busy: 1
Created attachment 30105 [details] Kernel config
I have had my machine completely freezing with the same sort of message showing up in the logs. Attached is an example of it.
Created attachment 33644 [details] Log for when a similar issue happened
-- GitLab Migration Automatic Message -- This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity. You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/drm/amd/issues/73.
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