On Tue, 20 January 2015 Linus Torvalds wrote: > On Tue, Jan 20, 2015 at 6:02 AM, Bruno Prémont wrote: > > > > No idea yet which rc is the offender (nor exact patch), but on my not > > so recent UP laptop with a pccard slot I have 2 pccardd kernel threads > > converting my laptop into a heater. > > > > lspci for affected nodes: > > 02:06.0 CardBus bridge [0607]: O2 Micro, Inc. OZ711EC1 SmartCardBus > > Controller [1217:7113] (rev 20) > > 02:06.1 CardBus bridge [0607]: O2 Micro, Inc. OZ711EC1 SmartCardBus > > Controller [1217:7113] (rev 20) > > > > Very basics I have, before I attempt any bisection: > > Hmm. I'm not seeing anything recent changing anything in this area, so > I suspect that unless somebody else steps up and says "Ahh, that > sounds like xyz", your bisection is the best option.
I've done most of the bisection and ended up in the scheduler changes. CCing Peter. A few iterations from the end kernel is warning about (might?)sleeping during locking or so (scrolling too fast to read end making access to console hard). My current bisection log is: git bisect start # bad: [117af36e3bceb4fceb1c63489d6f3d94ed259a4c] Apple-GMUX: inhibit VGA arbitration changes git bisect bad 117af36e3bceb4fceb1c63489d6f3d94ed259a4c # good: [b2776bf7149bddd1f4161f14f79520f17fc1d71d] Linux 3.18 git bisect good b2776bf7149bddd1f4161f14f79520f17fc1d71d # bad: [c0222ac086669a631814bbf857f8c8023452a4d7] Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus git bisect bad c0222ac086669a631814bbf857f8c8023452a4d7 # bad: [2183a58803c2bbd87c2d0057eed6779ec4718d4d] Merge tag 'media/v3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media git bisect bad 2183a58803c2bbd87c2d0057eed6779ec4718d4d # good: [6da314122ddc11936c6f054753bbb956a499d020] Merge tag 'dt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc git bisect good 6da314122ddc11936c6f054753bbb956a499d020 # bad: [cbfe0de303a55ed96d8831c2d5f56f8131cd6612] Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs git bisect bad cbfe0de303a55ed96d8831c2d5f56f8131cd6612 # bad: [9e66645d72d3c395da92b0f8855c787f4b5f0e89] Merge branch 'irq-irqdomain-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip git bisect bad 9e66645d72d3c395da92b0f8855c787f4b5f0e89 # good: [5706ffd045c3810912c4982357d7daa721af3464] Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip git bisect good 5706ffd045c3810912c4982357d7daa721af3464 # bad: [a157508c9790ccd1c8b5c6a828d6ba85bbe95aaa] Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip git bisect bad a157508c9790ccd1c8b5c6a828d6ba85bbe95aaa # bad: [acb32132ec0433c03bed750f3e9508dc29db0328] sched/deadline: Add deadline rq status print git bisect bad acb32132ec0433c03bed750f3e9508dc29db0328 # good: [1029a2b52c09e479fd7b07275812ad97868c0fb0] sched, exit: Deal with nested sleeps git bisect good 1029a2b52c09e479fd7b07275812ad97868c0fb0 That means, the remaining commits would be: commit acb32132ec0433c03bed750f3e9508dc29db0328 Author: Wanpeng Li <wanpeng...@linux.intel.com> Date: Fri Oct 31 06:39:33 2014 +0800 sched/deadline: Add deadline rq status print ... commit e23738a7300a7591a57a22f47b813fd1b53ec404 Author: Peter Zijlstra <pet...@infradead.org> Date: Wed Sep 24 10:18:50 2014 +0200 sched, inotify: Deal with nested sleeps It looks like pccardd might be doing the wrong thing for locking/sleeping/waiting. Trying to complete bisection. Bruno -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/