Created attachment 103620 [details] dmesg ==System Environment== -------------------------- Regression: Yes Good commit on drm-next: 008f40451d0e59f220a4fa13aaf75d04303a01a1 Non-working platforms: HSW BDW ==kernel== -------------------------- origin/drm-intel-nightly: e967a525207bd40ab446e2f809907039f88e66f3(fails) drm-intel-nightly: 2014y-07m-25d-23h-02m-06s integration manifest origin/drm-intel-next-queued: eff9b57c1a91ccf309d57500ab6a365ba7be5712(works) drm/i915: Update DRIVER_DATE to 20140725 origin/drm-intel-fixes: f4be89cecea437aaddd7700d05c6bdb5678041f7(works) drm/i915: Simplify i915_gem_release_all_mmaps() origin/drm-fixes: ec8a362f2e6e380e7a1f66a6c9a7f6c237ab3520(works) drm/i915: Fix crash when failing to parse MIPI VBT origin/drm-mext:e05444be705b5c7c7f85d7722b6f97f3a6732d54(fails) drm/i915: fix initial fbdev setup warnings ==Bisect results== ---------------------------- Bisect shows: 0e32b39ceed665bfa4a77a4bc307b6652b991632 is the first bad commit commit 0e32b39ceed665bfa4a77a4bc307b6652b991632 Author: Dave Airlie <airlied@redhat.com> AuthorDate: Fri May 2 14:02:48 2014 +1000 Commit: Dave Airlie <airlied@redhat.com> CommitDate: Tue Jul 22 11:20:26 2014 +1000 drm/i915: add DP 1.2 MST support (v0.7) This adds DP 1.2 MST support on Haswell systems. Notes: a) this reworks irq handling for DP MST ports, so that we can avoid the mode config locking in the current hpd handlers, as we need to process up/down msgs at a better time. Changes since v0.1: use PORT_PCH_HOTPLUG to detect short vs long pulses add a workqueue to deal with digital events as they can get blocked on the main workqueue beyong mode_config mutex fix a bunch of modeset checker warnings acks irqs in the driver cleanup the MST encoders Changes since v0.2: check irq status again in work handler move around bring up and tear down to fix DPMS on/off use path properties. Changes since v0.3: updates for mst apis more state checker fixes irq handling improvements fbcon handling support improved reference counting of link - fixes redocking. Changes since v0.4: handle gpu reset hpd reinit without oopsing check link status on HPD irqs fix suspend/resume Changes since v0.5: use proper functions to get max link/lane counts fix another checker backtrace - due to connectors disappearing. set output type in more places fro, unknown->displayport don't talk to devices if no HPD asserted check mst on short irqs only check link status properly rebase onto prepping irq changes. drop unsued force_act Changes since v0.6: cleanup unused struct entry. [airlied: fix some sparse warnings]. ==Bug detailed description== ----------------------------- HDMI hot plug cause system hang. Output shows Call Trace. Output: [ 65.043036] IP: [<ffffffff81719208>] __mutex_lock_slowpath+0x11b/0x196 [ 65.122420] PGD 0 [ 65.146919] Oops: 0002 [#1] SMP [ 65.186307] Modules linked in: dm_mod snd_hda_codec_hdmi iTCO_wdt iTCO_vendor _support ppdev pcspkr i2c_i801 snd_hda_intel snd_hda_controller snd_hda_codec sn d_hwdep snd_pcm lpc_ich mfd_core snd_timer snd soundcore battery parport_pc parp ort ac acpi_cpufreq i915 video button drm_kms_helper drm [ 65.503989] CPU: 0 PID: 24 Comm: kworker/u16:1 Not tainted 3.16.0-rc4_kcloud_ 0e32b3_20140729+ #2 [ 65.610714] Workqueue: i915-dp i915_digport_work_func [i915] [ 65.679535] task: ffff880149be0fc0 ti: ffff880149490000 task.ti: ffff88014949 0000 [ 65.770416] RIP: 0010:[<ffffffff81719208>] [<ffffffff81719208>] __mutex_lock _slowpath+0x11b/0x196 [ 65.879350] RSP: 0018:ffff880149493c70 EFLAGS: 00010286 [ 65.943842] RAX: 0000000000000000 RBX: ffff8801492c2490 RCX: 0000000000000000 [ 66.030501] RDX: 0000000000000000 RSI: ffff880149be0fc0 RDI: ffff8801492c2494 [ 66.117160] RBP: ffff880149493cb8 R08: ffff880149490000 R09: 000000000000b6bc [ 66.203818] R10: ffff880002831740 R11: 000000000000baa6 R12: ffff8801492c2494 [ 66.290475] R13: ffff880149be0fc0 R14: 00000000ffffffff R15: ffff8801492c2498 [ 66.377129] FS: 0000000000000000(0000) GS:ffff88014ec00000(0000) knlGS:00000 00000000000 [ 66.475397] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 66.545167] CR2: 0000000000000000 CR3: 00000000a8ce9000 CR4: 00000000003407f0 [ 66.631824] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 66.718478] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 66.805135] Stack: [ 66.829517] ffff8801492c2498 0000000000000000 ffffffff8109ef2f 0000000000000 007 [ 66.919768] ffff8801492c2490 ffff880149493ce0 ffff8801492c2490 0000000000000 00f [ 67.010015] ffff8801492c2000 ffff8801492c2118 ffffffff81719299 0000000000000 007 [ 67.100283] Call Trace: [ 67.129952] [<ffffffff8109ef2f>] ? irq_work_queue+0x4a/0x78 [ 67.198665] [<ffffffff81719299>] ? mutex_lock+0x16/0x25 [ 67.263162] [<ffffffffa00484fe>] ? drm_dp_dpcd_access+0x4f/0xeb [drm_kms_hel per] [ 67.354048] [<ffffffffa00485ac>] ? drm_dp_dpcd_read+0x12/0x15 [drm_kms_helpe r] [ 67.442826] [<ffffffffa00c267e>] ? intel_dp_dpcd_read_wake+0x2c/0x51 [i915] [ 67.528440] [<ffffffffa00c364d>] ? intel_dp_get_dpcd+0x32/0x14e [i915] [ 67.608773] [<ffffffffa009cd15>] ? gen6_read32+0x6c/0x75 [i915] [ 67.681727] [<ffffffffa00c7459>] ? intel_dp_hpd_pulse+0x7c/0x121 [i915] [ 67.763120] [<ffffffffa009172b>] ? i915_digport_work_func+0x89/0xf9 [i915] [ 67.847671] [<ffffffff8104740c>] ? process_one_work+0x1c1/0x2ca [ 67.920608] [<ffffffff81047de0>] ? worker_thread+0x2fa/0x3ea [ 67.990379] [<ffffffff81047ae6>] ? cancel_delayed_work_sync+0xa/0xa [ 68.067539] [<ffffffff8104c313>] ? kthread+0xca/0xd2 [ 68.128864] [<ffffffff8104c249>] ? kthread_create_on_node+0x162/0x162 [ 68.208137] [<ffffffff8171a6ac>] ? ret_from_fork+0x7c/0xb0 [ 68.275795] [<ffffffff8104c249>] ? kthread_create_on_node+0x162/0x162 [ 68.355065] Code: 4c 8d 63 04 4c 89 e7 e8 d4 0f 00 00 8b 03 85 c0 79 23 48 8b 43 10 4c 8d 7b 08 48 89 63 10 41 83 ce ff 4c 89 3c 24 48 89 44 24 08 <48> 89 20 4c 89 6c 24 10 eb 2d 31 c0 87 03 ff c8 75 d5 eb 47 44 [ 68.591265] RIP [<ffffffff81719208>] __mutex_lock_slowpath+0x11b/0x196 [ 68.671703] RSP <ffff880149493c70> [ 68.714035] CR2: 0000000000000000 [ 68.754255] ---[ end trace 20851570534d9ff2 ]--- [ 68.810554] BUG: unable to handle kernel paging request at ffffffffffffffd8 [ 68.895319] IP: [<ffffffff8104c712>] kthread_data+0x7/0xc [ 68.960979] PGD 1ab9067 PUD 1abb067 PMD 0 [ 69.011009] Oops: 0000 [#2] SMP [ 69.050395] Modules linked in: dm_mod snd_hda_codec_hdmi iTCO_wdt iTCO_vendor _support ppdev pcspkr i2c_i801 snd_hda_intel snd_hda_controller snd_hda_codec sn d_hwdep snd_pcm lpc_ich mfd_core snd_timer snd soundcore battery parport_pc parp ort ac acpi_cpufreq i915 video button drm_kms_helper drm [ 69.368066] CPU: 0 PID: 24 Comm: kworker/u16:1 Tainted: G D 3.16.0 -rc4_kcloud_0e32b3_20140729+ #2 [ 69.487453] task: ffff880149be0fc0 ti: ffff880149490000 task.ti: ffff88014949 0000 [ 69.578335] RIP: 0010:[<ffffffff8104c712>] [<ffffffff8104c712>] kthread_data +0x7/0xc [ 69.673549] RSP: 0018:ffff8801494938e8 EFLAGS: 00010002 [ 69.738042] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff831c1e00 [ 69.824701] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff880149be0fc0 [ 69.911358] RBP: ffff8801494939e8 R08: 0000000000010056 R09: 0000000000000001 [ 69.998018] R10: 000000000000bbaa R11: 000000000000bef8 R12: 0000000000000000 [ 70.084677] R13: ffff880149be13d0 R14: ffff880149b10000 R15: ffff880149be0fc0 [ 70.171334] FS: 0000000000000000(0000) GS:ffff88014ec00000(0000) knlGS:00000 00000000000 [ 70.269604] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 70.339373] CR2: 0000000000000028 CR3: 00000000a8ce9000 CR4: 00000000003407f0 [ 70.426032] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 70.512692] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 70.599349] Stack: [ 70.623737] ffffffff81047f65 ffff88014ec11500 ffffffff817176b9 ffff880149493 fd8 [ 70.714003] ffff880149be0fc0 0000000000011500 ffff88014ec11500 ffffffff81052 430 [ 70.804256] ffff8800abc7af40 0000000000000046 ffffffff81054a20 0000000000000 046 [ 70.894510] Call Trace: [ 70.924179] [<ffffffff81047f65>] ? wq_worker_sleeping+0x8/0x75 [ 70.996065] [<ffffffff817176b9>] ? __schedule+0x11c/0x6ce [ 71.062670] [<ffffffff81052430>] ? ttwu_do_wakeup+0xd/0x77 [ 71.130329] [<ffffffff81054a20>] ? try_to_wake_up+0x209/0x217 [ 71.201157] [<ffffffff810467ef>] ? __queue_work+0x1d0/0x1ed [ 71.269873] [<ffffffff81037968>] ? do_exit+0x8c2/0x8d2 [ 71.333312] [<ffffffff81711de6>] ? printk+0x4f/0x51 [ 71.393583] [<ffffffff81004fea>] ? oops_end+0x9b/0xa0 [ 71.455966] [<ffffffff81711396>] ? no_context+0x296/0x2a2 [ 71.522571] [<ffffffff8102d68c>] ? __do_page_fault+0x136/0x445 [ 71.594453] [<ffffffff8105a3ba>] ? set_next_entity+0x32/0x55 [ 71.664225] [<ffffffff8105bc6a>] ? pick_next_task_fair+0xeb/0x3d1 [ 71.739273] [<ffffffff81717a6d>] ? __schedule+0x4d0/0x6ce [ 71.805877] [<ffffffff8171bcd2>] ? page_fault+0x22/0x30 [ 71.870372] [<ffffffff81719208>] ? __mutex_lock_slowpath+0x11b/0x196 [ 71.948587] [<ffffffff8109ef2f>] ? irq_work_queue+0x4a/0x78 [ 72.017304] [<ffffffff81719299>] ? mutex_lock+0x16/0x25 [ 72.081799] [<ffffffffa00484fe>] ? drm_dp_dpcd_access+0x4f/0xeb [drm_kms_hel per] [ 72.172680] [<ffffffffa00485ac>] ? drm_dp_dpcd_read+0x12/0x15 [drm_kms_helpe r] [ 72.261462] [<ffffffffa00c267e>] ? intel_dp_dpcd_read_wake+0x2c/0x51 [i915] [ 72.347080] [<ffffffffa00c364d>] ? intel_dp_get_dpcd+0x32/0x14e [i915] [ 72.427420] [<ffffffffa009cd15>] ? gen6_read32+0x6c/0x75 [i915] [ 72.500369] [<ffffffffa00c7459>] ? intel_dp_hpd_pulse+0x7c/0x121 [i915] [ 72.581765] [<ffffffffa009172b>] ? i915_digport_work_func+0x89/0xf9 [i915] [ 72.666314] [<ffffffff8104740c>] ? process_one_work+0x1c1/0x2ca [ 72.739252] [<ffffffff81047de0>] ? worker_thread+0x2fa/0x3ea [ 72.809024] [<ffffffff81047ae6>] ? cancel_delayed_work_sync+0xa/0xa [ 72.886183] [<ffffffff8104c313>] ? kthread+0xca/0xd2 [ 72.947509] [<ffffffff8104c249>] ? kthread_create_on_node+0x162/0x162 [ 73.026781] [<ffffffff8171a6ac>] ? ret_from_fork+0x7c/0xb0 [ 73.094440] [<ffffffff8104c249>] ? kthread_create_on_node+0x162/0x162 [ 73.173709] Code: 83 c4 78 5b 5d 41 5c c3 65 48 8b 04 25 80 b8 00 00 48 8b 80 b8 03 00 00 48 8b 40 c8 48 c1 e8 02 83 e0 01 c3 48 8b 87 b8 03 00 00 <48> 8b 40 d8 c3 50 48 8b b7 b8 03 00 00 ba 08 00 00 00 48 89 e7 [ 73.409956] RIP [<ffffffff8104c712>] kthread_data+0x7/0xc [ 73.476674] RSP <ffff8801494938e8> [ 73.519002] CR2: ffffffffffffffd8 [ 73.559224] ---[ end trace 20851570534d9ff3 ]--- [ 73.615274] Fixing recursive fault but reboot is needed! Reproduce steps: ------------------------- 1. plugin HDMI
okay I'll take a look at this ASAP.
wierd it seems to be oopsing on the aux mutex not being there. What HW configuration is this? can I get a drm.debug=6 boot?
patch send to the mailing list. drm/i915: don't try and probe dpcd if we have no dp configured.
Created attachment 103978 [details] dmesg with drm.debug=0x6 (In reply to comment #3) > patch send to the mailing list. > > drm/i915: don't try and probe dpcd if we have no dp configured. HDMI hot plug works well with this patch(on BDW05)
(In reply to comment #2) > wierd it seems to be oopsing on the aux mutex not being there. > > What HW configuration is this? root@x-bdw05:~# lspci -nnn 00:00.0 Host bridge [0600]: Intel Corporation Device [8086:1604] (rev 08) 00:02.0 VGA compatible controller [0300]: Intel Corporation Device [8086:1616] (rev 08) 00:03.0 Audio device [0403]: Intel Corporation Device [8086:160c] (rev 08) 00:14.0 USB controller [0c03]: Intel Corporation Device [8086:9cb1] (rev 03) 00:16.0 Communication controller [0780]: Intel Corporation Device [8086:9cba] (rev 03) 00:19.0 Ethernet controller [0200]: Intel Corporation Ethernet Connection (3) I218-LM [8086:15a2] (rev 03) 00:1f.0 ISA bridge [0601]: Intel Corporation Device [8086:9cc3] (rev 03) 00:1f.2 SATA controller [0106]: Intel Corporation Device [8086:9c83] (rev 03) 00:1f.3 SMBus [0c05]: Intel Corporation Device [8086:9ca2] (rev 03) 00:1f.6 Signal processing controller [1180]: Intel Corporation Device [8086:9ca4] (rev 03) > > can I get a drm.debug=6 boot? Please check the attachment "dmesg with drm.debug=0x6 "
This bug is able to reproduce on BYT-M on latest -testing(0c6aad835dd1b817e87e312da0350e07952ff25e) too.
This issue doesn't exist on latest -nightly but there are other two bugs. I just mention it, not mean these three bug exist relationships.
Closing old verified.
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