| Summary: | [HSW Regression]igt/kms_setmode/clone-exclusive-crtc causes OOPS | ||||||
|---|---|---|---|---|---|---|---|
| Product: | DRI | Reporter: | Guo Jinxian <jinxianx.guo> | ||||
| Component: | DRM/Intel | Assignee: | Intel GFX Bugs mailing list <intel-gfx-bugs> | ||||
| Status: | CLOSED DUPLICATE | QA Contact: | Intel GFX Bugs mailing list <intel-gfx-bugs> | ||||
| Severity: | critical | ||||||
| Priority: | high | CC: | intel-gfx-bugs, przanoni | ||||
| Version: | unspecified | ||||||
| Hardware: | Other | ||||||
| OS: | All | ||||||
| Whiteboard: | |||||||
| i915 platform: | i915 features: | ||||||
| Attachments: |
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Description
Guo Jinxian
2014-10-22 06:04:49 UTC
Can you please bisect this for us? [ 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 The good commit is wrong. I think the error occurs sporadically. The test at 2014-04-30(nightly and next-queued branch) was hang(please refer comment 9 at bug 68463), and failed at both 2014-01-17(bug 73725) and 2014-07-23(comment9 at bug 73725). In a word. fails and hang interleave appearance. It's hard to bisect By the way, I tried to test the failed commit(e.g.-fixes 2014-07-23), system still hangs. |
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