Re: hrtimer deadlock caused by nohz_full

2014-10-08 Thread Dave Jones
On Thu, Oct 09, 2014 at 05:30:20AM +0200, Frederic Weisbecker wrote: > > Do I miss some other essential patch ? > > If you have used the diff in that URL then you've missed: > > x86: Tell irq work about self IPI support > > Without that the whole patchset has no effect. Ok.

Re: hrtimer deadlock caused by nohz_full

2014-10-08 Thread Frederic Weisbecker
On Wed, Oct 08, 2014 at 10:02:40PM -0400, Dave Jones wrote: > On Tue, Oct 07, 2014 at 07:42:47PM +0200, Thomas Gleixner wrote: > > On Tue, 7 Oct 2014, Dave Jones wrote: > > > > > On Tue, Oct 07, 2014 at 05:30:27PM +0200, Frederic Weisbecker wrote: > > > > > > > > > Right, this patchset

Re: hrtimer deadlock caused by nohz_full

2014-10-08 Thread Dave Jones
On Tue, Oct 07, 2014 at 07:42:47PM +0200, Thomas Gleixner wrote: > On Tue, 7 Oct 2014, Dave Jones wrote: > > > On Tue, Oct 07, 2014 at 05:30:27PM +0200, Frederic Weisbecker wrote: > > > > > > > Right, this patchset fixes it: "[PATCH 0/8] nohz: Fix nohz kick > > irq work on tick v3" > >

Re: hrtimer deadlock caused by nohz_full

2014-10-08 Thread Dave Jones
On Tue, Oct 07, 2014 at 07:42:47PM +0200, Thomas Gleixner wrote: On Tue, 7 Oct 2014, Dave Jones wrote: On Tue, Oct 07, 2014 at 05:30:27PM +0200, Frederic Weisbecker wrote: Right, this patchset fixes it: [PATCH 0/8] nohz: Fix nohz kick irq work on tick v3 I

Re: hrtimer deadlock caused by nohz_full

2014-10-08 Thread Frederic Weisbecker
On Wed, Oct 08, 2014 at 10:02:40PM -0400, Dave Jones wrote: On Tue, Oct 07, 2014 at 07:42:47PM +0200, Thomas Gleixner wrote: On Tue, 7 Oct 2014, Dave Jones wrote: On Tue, Oct 07, 2014 at 05:30:27PM +0200, Frederic Weisbecker wrote: Right, this patchset fixes it: [PATCH

Re: hrtimer deadlock caused by nohz_full

2014-10-08 Thread Dave Jones
On Thu, Oct 09, 2014 at 05:30:20AM +0200, Frederic Weisbecker wrote: Do I miss some other essential patch ? If you have used the diff in that URL then you've missed: x86: Tell irq work about self IPI support Without that the whole patchset has no effect. Ok. Thanks, I'll

Re: hrtimer deadlock caused by nohz_full

2014-10-07 Thread Thomas Gleixner
On Tue, 7 Oct 2014, Dave Jones wrote: > On Tue, Oct 07, 2014 at 05:30:27PM +0200, Frederic Weisbecker wrote: > > > > > Right, this patchset fixes it: "[PATCH 0/8] nohz: Fix nohz kick irq > work on tick v3" > > > > > > > > I was about to make the pull request, the branch is acked by

Re: hrtimer deadlock caused by nohz_full

2014-10-07 Thread Dave Jones
On Tue, Oct 07, 2014 at 05:30:27PM +0200, Frederic Weisbecker wrote: > > > Right, this patchset fixes it: "[PATCH 0/8] nohz: Fix nohz kick irq > > work on tick v3" > > > > > > I was about to make the pull request, the branch is acked by peterz. > > > Would you like to pull it? It's all

Re: hrtimer deadlock caused by nohz_full

2014-10-07 Thread Frederic Weisbecker
On Thu, Oct 02, 2014 at 02:24:09PM -0400, Dave Jones wrote: > On Fri, Sep 26, 2014 at 01:46:59AM +0200, Frederic Weisbecker wrote: > > > > > [] hrtimer_try_to_cancel+0x58/0x1f0 > > > > [] hrtimer_cancel+0x1a/0x30 > > > > [] tick_nohz_restart+0x17/0x90 > > > > []

Re: hrtimer deadlock caused by nohz_full

2014-10-07 Thread Frederic Weisbecker
On Thu, Oct 02, 2014 at 02:24:09PM -0400, Dave Jones wrote: On Fri, Sep 26, 2014 at 01:46:59AM +0200, Frederic Weisbecker wrote: [a10f95f8] hrtimer_try_to_cancel+0x58/0x1f0 [a10f97aa] hrtimer_cancel+0x1a/0x30 [a110a0e7] tick_nohz_restart+0x17/0x90

Re: hrtimer deadlock caused by nohz_full

2014-10-07 Thread Dave Jones
On Tue, Oct 07, 2014 at 05:30:27PM +0200, Frederic Weisbecker wrote: Right, this patchset fixes it: [PATCH 0/8] nohz: Fix nohz kick irq work on tick v3 I was about to make the pull request, the branch is acked by peterz. Would you like to pull it? It's all merge window

Re: hrtimer deadlock caused by nohz_full

2014-10-07 Thread Thomas Gleixner
On Tue, 7 Oct 2014, Dave Jones wrote: On Tue, Oct 07, 2014 at 05:30:27PM +0200, Frederic Weisbecker wrote: Right, this patchset fixes it: [PATCH 0/8] nohz: Fix nohz kick irq work on tick v3 I was about to make the pull request, the branch is acked by peterz. Would

Re: hrtimer deadlock caused by nohz_full

2014-10-02 Thread Mike Lothian
I think this might be the bug I reported here https://bugzilla.kernel.org/show_bug.cgi?id=84131 On 2 October 2014 19:24, Dave Jones wrote: > On Fri, Sep 26, 2014 at 01:46:59AM +0200, Frederic Weisbecker wrote: > > > > > [] hrtimer_try_to_cancel+0x58/0x1f0 > > > > [] hrtimer_cancel+0x1a/0x30

Re: hrtimer deadlock caused by nohz_full

2014-10-02 Thread Dave Jones
On Fri, Sep 26, 2014 at 01:46:59AM +0200, Frederic Weisbecker wrote: > > > [] hrtimer_try_to_cancel+0x58/0x1f0 > > > [] hrtimer_cancel+0x1a/0x30 > > > [] tick_nohz_restart+0x17/0x90 > > > [] __tick_nohz_full_check+0xc8/0xe0 > > > [] nohz_full_kick_work_func+0xe/0x10 > > > []

Re: hrtimer deadlock caused by nohz_full

2014-10-02 Thread Mike Lothian
I think this might be the bug I reported here https://bugzilla.kernel.org/show_bug.cgi?id=84131 On 2 October 2014 19:24, Dave Jones da...@redhat.com wrote: On Fri, Sep 26, 2014 at 01:46:59AM +0200, Frederic Weisbecker wrote: [a10f95f8] hrtimer_try_to_cancel+0x58/0x1f0

Re: hrtimer deadlock caused by nohz_full

2014-10-02 Thread Dave Jones
On Fri, Sep 26, 2014 at 01:46:59AM +0200, Frederic Weisbecker wrote: [a10f95f8] hrtimer_try_to_cancel+0x58/0x1f0 [a10f97aa] hrtimer_cancel+0x1a/0x30 [a110a0e7] tick_nohz_restart+0x17/0x90 [a110af38] __tick_nohz_full_check+0xc8/0xe0

Re: hrtimer deadlock caused by nohz_full

2014-09-25 Thread Frederic Weisbecker
On Thu, Sep 25, 2014 at 04:35:49PM +0200, Thomas Gleixner wrote: > On Thu, 25 Sep 2014, Dave Jones wrote: > > > Got this on a box that had been fuzzing for 12 hours or so. > > There's also some timer stuff going on htere, so cc'ing the usual suspects. > > And it's a hrtimer lockup > > > [] ?

Re: hrtimer deadlock caused by nohz_full

2014-09-25 Thread Thomas Gleixner
On Thu, 25 Sep 2014, Dave Jones wrote: > Got this on a box that had been fuzzing for 12 hours or so. > There's also some timer stuff going on htere, so cc'ing the usual suspects. And it's a hrtimer lockup > [] ? hrtimer_try_to_cancel+0x58/0x1f0 > [] ? lock_release+0x1d/0x300 > [] ?

Re: hrtimer deadlock caused by nohz_full

2014-09-25 Thread Frederic Weisbecker
On Thu, Sep 25, 2014 at 04:35:49PM +0200, Thomas Gleixner wrote: On Thu, 25 Sep 2014, Dave Jones wrote: Got this on a box that had been fuzzing for 12 hours or so. There's also some timer stuff going on htere, so cc'ing the usual suspects. And it's a hrtimer lockup

Re: hrtimer deadlock caused by nohz_full

2014-09-25 Thread Thomas Gleixner
On Thu, 25 Sep 2014, Dave Jones wrote: Got this on a box that had been fuzzing for 12 hours or so. There's also some timer stuff going on htere, so cc'ing the usual suspects. And it's a hrtimer lockup [a10f95f8] ? hrtimer_try_to_cancel+0x58/0x1f0 [a10d103d] ?