On Fri, Oct 21, 2016 at 09:01:59AM -0000, Patchwork wrote: > == Series Details == > > Series: drm: Pass along the hotplug connector to the uevent > URL : https://patchwork.freedesktop.org/series/14152/ > State : failure > > == Summary == > > Series 14152v1 drm: Pass along the hotplug connector to the uevent > https://patchwork.freedesktop.org/api/1.0/series/14152/revisions/1/mbox/ > > Test kms_flip: > Subgroup basic-flip-vs-dpms: > pass -> INCOMPLETE (fi-snb-2600) > pass -> INCOMPLETE (fi-ivb-3770) > Subgroup basic-flip-vs-modeset: > pass -> INCOMPLETE (fi-ivb-3520m) mutex deadlock at [ 259.382365] CPU: 0 PID: 71 Comm: kworker/0:1 Tainted: G U 4.9.0-rc1-CI-Patchwork_2781+ #1 [ 259.382369] Hardware name: Dell Inc. XPS 8300 /0Y2MRG, BIOS A06 10/17/2011 [ 259.382409] Workqueue: events i915_hotplug_work_func [i915] [ 259.382414] ffffc9000027bb40 ffffffff8142dce5 ffffffff827de530 ffffffff827de530 [ 259.382423] ffffc9000027bbf8 ffffffff810d8624 ffff88012a37af68 000000000027bb90 [ 259.382432] ffffffff810d6c3f ffff880100000003 ffffffff00012000 b57c70f93abc779a [ 259.382440] Call Trace: [ 259.382448] [<ffffffff8142dce5>] dump_stack+0x67/0x92 [ 259.382455] [<ffffffff810d8624>] __lock_acquire+0x1544/0x1930 [ 259.382461] [<ffffffff810d6c3f>] ? mark_held_locks+0x6f/0xa0 [ 259.382468] [<ffffffff810d6d92>] ? trace_hardirqs_on_caller+0x122/0x1b0 [ 259.382474] [<ffffffff810d6e2d>] ? trace_hardirqs_on+0xd/0x10 [ 259.382480] [<ffffffff810d8e32>] lock_acquire+0xb2/0x200 [ 259.382486] [<ffffffff8154ce5e>] ? drm_fb_helper_hotplug_event+0x2e/0x170 [ 259.382493] [<ffffffff8154ce5e>] ? drm_fb_helper_hotplug_event+0x2e/0x170 [ 259.382500] [<ffffffff81810862>] mutex_lock_nested+0x62/0x400 [ 259.382506] [<ffffffff8154ce5e>] ? drm_fb_helper_hotplug_event+0x2e/0x170 [ 259.382512] [<ffffffff81558938>] ? drm_sysfs_hotplug_event+0x88/0xa0 [ 259.382518] [<ffffffff8154ce5e>] drm_fb_helper_hotplug_event+0x2e/0x170 [ 259.382558] [<ffffffffa00dffcf>] intel_fbdev_output_poll_changed+0x1f/0x30 [i915] [ 259.382566] [<ffffffff8153e2c2>] drm_kms_helper_hotplug_event+0x22/0x30 [ 259.382604] [<ffffffffa00d6750>] i915_hotplug_work_func+0x230/0x280 [i915] [ 259.382611] [<ffffffff8109c22c>] process_one_work+0x1ec/0x6b0 [ 259.382616] [<ffffffff8109c1a6>] ? process_one_work+0x166/0x6b0 [ 259.382623] [<ffffffff8109c739>] worker_thread+0x49/0x490 [ 259.382628] [<ffffffff8109c6f0>] ? process_one_work+0x6b0/0x6b0 [ 259.382634] [<ffffffff8109c6f0>] ? process_one_work+0x6b0/0x6b0 [ 259.382639] [<ffffffff810a2a5b>] kthread+0xeb/0x110 [ 259.382645] [<ffffffff810a2970>] ? kthread_park+0x60/0x60 [ 259.382651] [<ffffffff818160a7>] ret_from_fork+0x27/0x40 due to fbdev callback from the helper. So that has to remain outside of the lock. -Chris -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
