| Summary: | [BDW Regression]igt/kms_setmode/clone-exclusive-crtc takes more than 10 minutes and causes BUG: unable to handle kernel NULL pointer dereference at (null) | ||||||
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| Product: | DRI | Reporter: | lu hua <huax.lu> | ||||
| Component: | DRM/Intel | Assignee: | Intel GFX Bugs mailing list <intel-gfx-bugs> | ||||
| Status: | CLOSED FIXED | QA Contact: | Intel GFX Bugs mailing list <intel-gfx-bugs> | ||||
| Severity: | major | ||||||
| Priority: | highest | CC: | intel-gfx-bugs | ||||
| Version: | unspecified | ||||||
| Hardware: | All | ||||||
| OS: | Linux (All) | ||||||
| Whiteboard: | |||||||
| i915 platform: | i915 features: | ||||||
| Attachments: |
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Description
lu hua
2014-11-12 06:47:10 UTC
Please bisect where this hang/timeout started to appear. But before that please retest on latest -nightly, this might be fixed already. We tried with the latest-nightly ,and it seems that hang/timeout has disappeared.But the it shows that:
n-subtest clone-exclusive-crtc
IGT-Version: 1.8-gd807891 (x86_64) (Linux: 3.18.0-rc5_drm-intel-nightly_18748b_20141121+ x86_64)
Testing: clone-exclusive-crtc 2 connector combinations
Test id#1 CRTC count 2
CRTC[8] [Pipe A] Mode: 1920x1080@60Hz Connectors: eDP-1[19]
CRTC[12] [Pipe B] Mode: 640x480@60Hz Connectors: HDMI-A-1[32] (NC)
Test assertion failure function test_crtc_config, file kms_setmode.c:431:
Failed assertion: config_failed == !!(tconf->flags & TEST_INVALID)
Last errno: 22, Invalid argument
Subtest clone-exclusive-crtc: FAIL (0.078s)
And the dmesg call trace
[ 72.460042] Call Trace:
[ 72.460048] [<ffffffff81789572>] ? dump_stack+0x41/0x51
[ 72.460052] [<ffffffff810368cc>] ? warn_slowpath_common+0x78/0x90
[ 72.460062] [<ffffffffa00e61ca>] ? intel_ddi_compute_config+0x3a/0x6f [i915]
[ 72.460065] [<ffffffff8103697c>] ? warn_slowpath_fmt+0x45/0x4a
[ 72.460074] [<ffffffffa00e61ca>] ? intel_ddi_compute_config+0x3a/0x6f [i915]
[ 72.460085] [<ffffffffa00d33a9>] ? intel_modeset_pipe_config+0x3d5/0x935 [i915]
[ 72.460091] [<ffffffffa0012ffb>] ? drm_ut_debug_printk+0x59/0x5e [drm]
[ 72.460102] [<ffffffffa00d60bc>] ? intel_crtc_set_config+0x772/0xbf5 [i915]
[ 72.460109] [<ffffffffa0017f54>] ? drm_mode_set_config_internal+0x4e/0xd2 [drm]
[ 72.460116] [<ffffffffa001ba4d>] ? drm_mode_setcrtc+0x3e9/0x48e [drm]
[ 72.460121] [<ffffffffa0010738>] ? drm_ioctl+0x279/0x3bc [drm]
[ 72.460124] [<ffffffff810e877f>] ? tlb_finish_mmu+0xb/0x2f
[ 72.460130] [<ffffffffa001b664>] ? drm_mode_setplane+0x1ce/0x1ce [drm]
[ 72.460135] [<ffffffffa000fac7>] ? drm_gem_vm_close+0x2a/0x4b [drm]
[ 72.460139] [<ffffffff8111a76f>] ? do_vfs_ioctl+0x3ec/0x435
[ 72.460141] [<ffffffff8111a801>] ? SyS_ioctl+0x49/0x78
[ 72.460144] [<ffffffff8178ec12>] ? system_call_fastpath+0x12/0x17
[ 72.460146] ---[ end trace 8f48497b96dbe155 ]---
[ 72.460148] ------------[ cut here ]------------
[ 72.460158] WARNING: CPU: 0 PID: 4694 at drivers/gpu/drm/i915/intel_dp.c:140 intel_dp_max_link_bw+0x6f/0x77 [i915]()
[ 72.460159] invalid max DP link bw val 0, using 1.62Gbps
[ 72.460160] Modules linked in: snd_hda_codec_hdmi pcspkr snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm i2c_i801 lpc_ich snd_timer mfd_core snd soundcore dm_mod battery parport_pc parport ac acpi_cpufreq i915 button video drm_kms_helper drm cfbfillrect cfbimgblt cfbcopyarea
[ 72.460172] CPU: 0 PID: 4694 Comm: kms_setmode Tainted: G U W 3.18.0-rc5_drm-intel-nightly_18748b_20141121+ #1774
[ 72.460172] 0000000000000000 0000000000000009 ffffffff81789572 ffff8801441efaf8
[ 72.460175] ffffffff810368cc ffff880002c39000 ffffffffa00eb919 0000000000000009
Test on latest -nightly kernel. The error goes away, the fail will be track 68463. Closing (>2 years) old Verified+Fixed. |
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