On 27/10/2015 10:40, Jani Nikula wrote: > On Tue, 27 Oct 2015, Kai Huang <kai.huang@xxxxxxxxxxxxxxx> wrote: >> I got below Call Trace when booting my 4.3.0-rc3+ kernel on my SKL DT >> machine. Although my machine boots up despite this call trace, I think >> it's better to report it (and hopefully this is the right mailing list >> to report). > > Please try v4.3-rc7. If that doesn't help, please file a bug at > https://bugs.freedesktop.org/enter_bug.cgi?product=DRI&component=DRM/Intel > > BR, > Jani. > Hi, I'm testing 4.3-rc7 and got a similar crash (i7-6700k on z170), the machine fails to boot. [ 5.063912] ------------[ cut here ]------------ [ 5.063941] WARNING: CPU: 1 PID: 6 at /home/user/n/qubes-builder/qubes-src/linux-kernel/kernel-4.3.0/linux-4.3.0/drivers/gpu/drm/i915/intel_pm.c:3668 skl_update_other_pipe_wm+0x1f3/0x200) [ 5.063942] WARN_ON(!wm_changed) [ 5.063950] Modules linked in: crct10dif_pclmul crc32_pclmul crc32c_intel nouveau(+) mxm_wmi radeon(+) i915 intel_gtt i2c_algo_bit drm_kms_helper ttm drm agpgart wmi video xen_pciback xek [ 5.063951] CPU: 1 PID: 6 Comm: kworker/u4:0 Not tainted 4.3.0-1.pvops.qubes.x86_64 #1 [ 5.063952] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./Z170 Extreme4, BIOS P2.10 10/14/2015 [ 5.063958] Workqueue: events_unbound async_run_entry_fn [ 5.063960] 0000000000000000 00000000624b15e0 ffff88086bb67400 ffffffff81394b54 [ 5.063964] ffff88086bb67448 ffff88086bb67438 ffffffff8109ced2 ffff8808677f8000 [ 5.063965] ffff88086bb67594 ffff88086bb674e0 ffff8808677fb000 0000000000000000 [ 5.063965] Call Trace: [ 5.063972] [<ffffffff81394b54>] dump_stack+0x44/0x60 [ 5.063975] [<ffffffff8109ced2>] warn_slowpath_common+0x82/0xc0 [ 5.063976] [<ffffffff8109cf6c>] warn_slowpath_fmt+0x5c/0x80 [ 5.063997] [<ffffffffa015f9f3>] skl_update_other_pipe_wm+0x1f3/0x200 [i915] [ 5.064013] [<ffffffffa015fbbb>] skl_update_wm+0x1bb/0x700 [i915] [ 5.064028] [<ffffffff8172dae9>] ? error_exit+0x9/0x20 [ 5.064044] [<ffffffffa01610be>] intel_update_watermarks+0x1e/0x30 [i915] [ 5.064073] [<ffffffffa01c0f46>] haswell_crtc_enable+0x476/0xbd0 [i915] [ 5.064098] [<ffffffffa01bdeef>] intel_atomic_commit+0x36f/0x630 [i915] [ 5.064114] [<ffffffffa0068e24>] ? drm_atomic_check_only+0x1d4/0x570 [drm] [ 5.064128] [<ffffffffa00691f7>] drm_atomic_commit+0x37/0x60 [drm] [ 5.064135] [<ffffffffa00f09d4>] drm_atomic_helper_set_config+0x1c4/0x430 [drm_kms_helper] [ 5.064144] [<ffffffffa0059052>] drm_mode_set_config_internal+0x62/0x100 [drm] [ 5.064151] [<ffffffffa00f37eb>] restore_fbdev_mode+0xab/0x110 [drm_kms_helper] [ 5.064157] [<ffffffffa00f5685>] drm_fb_helper_restore_fbdev_mode_unlocked+0x25/0x70 [drm_kms_helper] [ 5.064159] [<ffffffffa00f56fd>] drm_fb_helper_set_par+0x2d/0x50 [drm_kms_helper] [ 5.064188] [<ffffffffa01d20ea>] intel_fbdev_set_par+0x1a/0x60 [i915] [ 5.064190] [<ffffffff81401cd3>] fbcon_init+0x533/0x5a0 [ 5.064195] [<ffffffff814837ca>] visual_init+0xca/0x130 [ 5.064196] [<ffffffff81485ec8>] do_bind_con_driver+0x168/0x390 [ 5.064197] [<ffffffff8148639c>] do_take_over_console+0xac/0x1a0 [ 5.064198] [<ffffffff813fcef7>] do_fbcon_takeover+0x57/0xb0 [ 5.064199] [<ffffffff81402746>] fbcon_event_notify+0x646/0x740 [ 5.064204] [<ffffffff810bbbca>] notifier_call_chain+0x4a/0x70 [ 5.064205] [<ffffffff810bbf07>] __blocking_notifier_call_chain+0x47/0x60 [ 5.064206] [<ffffffff810bbf36>] blocking_notifier_call_chain+0x16/0x20 [ 5.064211] [<ffffffff814082cb>] fb_notifier_call_chain+0x1b/0x20 [ 5.064211] [<ffffffff8140a449>] register_framebuffer+0x209/0x340 [ 5.064214] [<ffffffffa00f5959>] drm_fb_helper_initial_config+0x239/0x3c0 [drm_kms_helper] [ 5.064241] [<ffffffffa01d31fb>] intel_fbdev_initial_config+0x1b/0x20 [i915] [ 5.064242] [<ffffffff810bd5da>] async_run_entry_fn+0x4a/0x140 [ 5.064243] [<ffffffff810b4d30>] process_one_work+0x150/0x3f0 [ 5.064244] [<ffffffff810b595e>] worker_thread+0x4e/0x460 [ 5.064248] [<ffffffff810b5910>] ? rescuer_thread+0x300/0x300 [ 5.064249] [<ffffffff810bab78>] kthread+0xd8/0xf0 [ 5.064250] [<ffffffff810baaa0>] ? kthread_park+0x60/0x60 [ 5.064251] [<ffffffff8172ba1f>] ret_from_fork+0x3f/0x70 [ 5.064256] [<ffffffff810baaa0>] ? kthread_park+0x60/0x60 [ 5.064256] ---[ end trace 18eaeb20a49fdf89 ]--- John. _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx