BUG: unable to handle kernel NULL pointer dereference, radeon_object_list_unreserve+0x13/0x34
Submitted by Octoploid
Assigned to Default DRI bug account
Description
Created attachment 30104
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 (closed) 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
Attachment 30104, "Kernel log":
current