[Bug 85311] [HSW Regression]igt/kms_setmode/clone-exclusive-crtc causes OOPS
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Wed Oct 22 11:47:01 PDT 2014
https://bugs.freedesktop.org/show_bug.cgi?id=85311
--- Comment #2 from Chris Wilson <chris at chris-wilson.co.uk> ---
[ 35.654241] WARNING: CPU: 0 PID: 4000 at
drivers/gpu/drm/i915/intel_ddi.c:1566 intel_ddi_compute_config+0x39/0x6c
[i915]()
[ 35.654242] compute_config() on unknown output!
...
[ 35.654336] BUG: unable to handle kernel NULL pointer dereference at
(null)
[ 35.654367] IP: [<ffffffffa00de532>] intel_dp_max_link_bw+0x10/0x75 [i915]
[ 35.654398] PGD 250228067 PUD 251862067 PMD 0
[ 35.654415] Oops: 0000 [#1] SMP
[ 35.654428] Modules linked in: ipv6 dm_mod acpi_cpufreq i915 button video
drm_kms_helper drm cfbfillrect cfbimgblt cfbcopyarea
[ 35.654477] CPU: 0 PID: 4000 Comm: kms_setmode Tainted: G W
3.18.0-rc1_drm-intel-nightly_1e61c9_20141022+ #742
[ 35.654513] Hardware name: ASUS All Series/Z87-EXPERT, BIOS 1008 05/17/2013
[ 35.654536] task: ffff88025122a800 ti: ffff880250328000 task.ti:
ffff880250328000
[ 35.654561] RIP: 0010:[<ffffffffa00de532>] [<ffffffffa00de532>]
intel_dp_max_link_bw+0x10/0x75 [i915]
[ 35.654598] RSP: 0018:ffff88025032bb10 EFLAGS: 00010297
[ 35.654616] RAX: 0000000000000000 RBX: ffff8800881e7000 RCX:
0000000000000000
[ 35.654640] RDX: ffff8800881e7000 RSI: ffff880250327c00 RDI:
ffff8800881e70e0
[ 35.654664] RBP: ffff8802517b9800 R08: 0000000000000002 R09:
00000000fffffffe
[ 35.654687] R10: 00000000fffffffe R11: ffffffff81a52200 R12:
ffff880002ce0000
[ 35.654711] R13: ffff8800881e0000 R14: ffff880250327c00 R15:
0000000000000001
[ 35.654735] FS: 00007faa66e868c0(0000) GS:ffff88025fa00000(0000)
knlGS:0000000000000000
[ 35.654762] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 35.654781] CR2: 0000000000000000 CR3: 00000002501a2000 CR4:
00000000001407f0
[ 35.654804] Stack:
[ 35.654811] ffffffffa00de6ae ffffffffa0116bac ffff880200000018
ffff88025032bb78
[ 35.654839] ffff88025032bb38 00000000fffffffe ffff8800881e70e0
0000000000000000
[ 35.654866] 0000000000000000 ffff880250327cd8 ffff880250db0708
ffff8800881e0000
[ 35.654894] Call Trace:
[ 35.654908] [<ffffffffa00de6ae>] ? intel_dp_compute_config+0x63/0x479
[i915]
[ 35.654938] [<ffffffffa00c6df8>] ? __intel_set_mode+0x5cd/0x1216 [i915]
[ 35.654961] [<ffffffff8178a0df>] ? printk+0x4f/0x54
[ 35.654983] [<ffffffffa00c9be8>] ? intel_set_mode+0xd/0x27 [i915]
[ 35.655009] [<ffffffffa00ca7fb>] ? intel_crtc_set_config+0x757/0xa92 [i915]
[ 35.655036] [<ffffffffa0017f21>] ? drm_mode_set_config_internal+0x48/0xbd
[drm]
[ 35.655064] [<ffffffffa001b931>] ? drm_mode_setcrtc+0x3e6/0x48b [drm]
[ 35.655088] [<ffffffffa0010738>] ? drm_ioctl+0x279/0x3bc [drm]
[ 35.655108] [<ffffffff810eebc2>] ? tlb_finish_mmu+0xb/0x2f
[ 35.655129] [<ffffffffa001b54b>] ? drm_mode_setplane+0x1ce/0x1ce [drm]
[ 35.655153] [<ffffffffa000fac7>] ? drm_gem_vm_close+0x2a/0x4b [drm]
[ 35.655176] [<ffffffff8112095b>] ? do_vfs_ioctl+0x3ec/0x435
[ 35.655195] [<ffffffff810a13d2>] ? __audit_syscall_entry+0xb2/0xd2
[ 35.655217] [<ffffffff8100d284>] ? syscall_trace_enter_phase1+0x11e/0x127
[ 35.655240] [<ffffffff811209ed>] ? SyS_ioctl+0x49/0x78
[ 35.655258] [<ffffffff810a15fb>] ? __audit_syscall_exit+0x209/0x225
[ 35.655280] [<ffffffff81792692>] ? system_call_fastpath+0x12/0x17
[ 35.655301] Code: 48 8b 78 28 e8 cc 70 fa ff 83 7b 68 08 74 07 c7 43 68 07
00 00 00 5b 5d 41 5c c3 8a 57 1c 48 8b 8f b0 04 00 00 80 fa 0a 0f b6 c2 <48> 8b
09 74 5f 80 fa 14 74 06 80 fa 06 75 32 c3 48 8b 51 28 f6
[ 35.655412] RIP [<ffffffffa00de532>] intel_dp_max_link_bw+0x10/0x75 [i915]
[ 35.655441] RSP <ffff88025032bb10>
[ 35.655453] CR2: 0000000000000000
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