Messages in this thread | | | From | "Winkler, Tomas" <> | Subject | RE: MEI-related WARN_ON() triggered during resume-from-sleep on v4.12-rc2+ | Date | Sun, 30 Jul 2017 09:16:56 +0000 |
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> -----Original Message----- > From: Dominik Brodowski [mailto:linux@dominikbrodowski.net] > Sent: Sunday, July 30, 2017 11:59 > To: Winkler, Tomas <tomas.winkler@intel.com> > Cc: Usyskin, Alexander <alexander.usyskin@intel.com>; linux- > kernel@vger.kernel.org > Subject: MEI-related WARN_ON() triggered during resume-from-sleep on > v4.12-rc2+ > > Thomas, > > on Linus' most recent kernel (v4.12-rc2, git head 0a07b238e5f48), I see the > following message on my Dell XPS13 when resuming from sleep. MEI is, > AFAIK, not being used on this system: >
Thanks for the report, we haven't change the logic of this code since 4.12 so we need to look for changes in pci and/or pm subsystems. We try to bisect it.
Thanks
> [ 192.940537] Restarting tasks ... > [ 192.940610] PGI is not set > [ 192.940619] ------------[ cut here ]------------ [ 192.940623] WARNING: CPU: 0 > PID: 1661 at /home/brodo/local/kernel/git/linux/drivers/misc/mei/hw- > me.c:653 mei_me_pg_exit_sync+0x351/0x360 [ 192.940624] Modules linked > in: > [ 192.940627] CPU: 0 PID: 1661 Comm: kworker/0:3 Not tainted 4.13.0-rc2+ > #2 [ 192.940628] Hardware name: Dell Inc. XPS 13 9343/0TM99H, BIOS A11 > 12/08/2016 [ 192.940630] Workqueue: pm pm_runtime_work <snip> [ > 192.940642] Call Trace: > [ 192.940646] ? pci_pme_active+0x1de/0x1f0 [ 192.940649] ? > pci_restore_standard_config+0x50/0x50 > [ 192.940651] ? kfree+0x172/0x190 > [ 192.940653] ? kfree+0x172/0x190 > [ 192.940655] ? pci_restore_standard_config+0x50/0x50 > [ 192.940663] mei_me_pm_runtime_resume+0x3f/0xc0 > [ 192.940665] pci_pm_runtime_resume+0x7a/0xa0 [ 192.940667] > __rpm_callback+0xb9/0x1e0 [ 192.940668] ? > preempt_count_add+0x6d/0xc0 [ 192.940670] rpm_callback+0x24/0x90 [ > 192.940672] ? pci_restore_standard_config+0x50/0x50 > [ 192.940674] rpm_resume+0x4e8/0x800 > [ 192.940676] pm_runtime_work+0x55/0xb0 [ 192.940678] > process_one_work+0x184/0x3e0 [ 192.940680] worker_thread+0x4d/0x3a0 [ > 192.940681] ? preempt_count_sub+0x9b/0x100 [ 192.940683] > kthread+0x122/0x140 [ 192.940684] ? process_one_work+0x3e0/0x3e0 [ > 192.940685] ? __kthread_create_on_node+0x1a0/0x1a0 > [ 192.940688] ret_from_fork+0x27/0x40 > [ 192.940690] Code: 96 3a 9e ff 48 8b 7d 98 e8 cd 21 58 00 83 bb bc 01 00 00 > 04 0f 85 40 fe ff ff e9 41 fe ff ff 48 c7 c7 5f 04 99 96 e8 93 6b 9f ff <0f> ff e9 5d > fd ff ff e8 33 fe 99 ff 0f 1f 00 0f 1f 44 00 00 55 [ 192.940719] ---[ end trace > a86955597774ead8 ]--- [ 192.942540] done. > > This doesn't / didn't happen on v4.12. > > Best, > Dominik
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