From: Mike Galbraith <efault@gmx.de>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>,
LKML <linux-kernel@vger.kernel.org>,
linux-rt-users <linux-rt-users@vger.kernel.org>
Subject: Re: [ANNOUNCE] 3.0.4-rt13
Date: Mon, 12 Sep 2011 16:53:07 +0200 [thread overview]
Message-ID: <1315839187.6758.8.camel@marge.simson.net> (raw)
In-Reply-To: <1315835562.6758.3.camel@marge.simson.net>
On Mon, 2011-09-12 at 15:52 +0200, Mike Galbraith wrote:
> 36717 <...>-6266 [002] 242.543129: sys_semop <-system_call_fastpath
> 36718 <...>-6266 [002] 242.543129: sys_semtimedop <-sys_semop
> 36719 <...>-6266 [002] 242.543131: ipc_lock_check <-sys_semtimedop
> 36720 <...>-6266 [002] 242.543131: ipc_lock <-ipc_lock_check
> 36721 <...>-6266 [002] 242.543132: __rcu_read_lock <-ipc_lock
> 36722 <...>-6266 [002] 242.543133: migrate_disable <-ipc_lock
> 36723 <...>-6266 [002] 242.543134: migrate_disable: migrate_disable: in_atomic:0 p->migrate_disable_atomic:0 p->migrate_disable:0
> 36724 <...>-6266 [002] 242.543134: pin_current_cpu <-migrate_disable
> 36725 <...>-6266 [002] 242.543134: _raw_spin_lock_irqsave <-migrate_disable
> 36726 <...>-6266 [002] 242.543135: _raw_spin_unlock_irqrestore <-migrate_disable
> 36727 <...>-6266 [002] 242.543135: rt_spin_lock <-ipc_lock
> 36728 <...>-6266 [002] 242.543136: ipcperms <-sys_semtimedop
> 36729 <...>-6266 [002] 242.543137: ns_capable <-ipcperms
> 36730 <...>-6266 [002] 242.543138: cap_capable <-ns_capable
> 36731 <...>-6266 [002] 242.543138: pid_vnr <-sys_semtimedop
> 36732 <...>-6266 [002] 242.543139: try_atomic_semop <-sys_semtimedop
> 36733 <...>-6266 [002] 242.543140: do_smart_update <-sys_semtimedop
> 36734 <...>-6266 [002] 242.543140: update_queue <-do_smart_update
> 36735 <...>-6266 [002] 242.543141: try_atomic_semop <-update_queue
> 36736 <...>-6266 [002] 242.543142: update_queue <-do_smart_update
> 36737 <...>-6266 [002] 242.543142: try_atomic_semop <-update_queue
> 36738 <...>-6266 [002] 242.543143: update_queue <-do_smart_update
> 36739 <...>-6266 [002] 242.543143: try_atomic_semop <-update_queue
> 36740 <...>-6266 [002] 242.543144: get_seconds <-do_smart_update
> 36741 <...>-6266 [002] 242.543144: rt_spin_unlock <-sys_semtimedop
> 36742 <...>-6266 [002] 242.543144: migrate_enable <-sys_semtimedop
> 36743 <...>-6266 [002] 242.543145: migrate_enable: migrate_enable: in_atomic:1 p->migrate_disable_atomic:0 p->migrate_disable:1
Hm. Seems this is home grown a non-preemptive wakeup in the making.
-Mike
next prev parent reply other threads:[~2011-09-12 14:53 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-09-10 9:12 Thomas Gleixner
2011-09-10 14:53 ` Madovsky
2011-09-10 17:27 ` Rolando Martins
2011-09-11 10:35 ` Mike Galbraith
2011-09-11 17:01 ` Mike Galbraith
2011-09-12 7:24 ` Thomas Gleixner
2011-09-12 8:59 ` Peter Zijlstra
2011-09-12 9:05 ` Mike Galbraith
2011-09-12 13:52 ` Mike Galbraith
2011-09-12 14:53 ` Mike Galbraith [this message]
2011-09-13 13:36 ` Peter Zijlstra
2011-09-13 15:17 ` Mike Galbraith
2011-09-13 15:08 ` Peter Zijlstra
2011-09-13 15:28 ` Mike Galbraith
2011-09-13 16:13 ` Peter Zijlstra
2011-09-21 10:17 ` rt14: strace -> migrate_disable_atomic imbalance Mike Galbraith
2011-09-21 17:01 ` Peter Zijlstra
2011-09-21 18:50 ` Peter Zijlstra
2011-09-22 4:46 ` Mike Galbraith
2011-09-22 6:31 ` Peter Zijlstra
2011-09-22 8:38 ` Peter Zijlstra
2011-09-22 10:00 ` Peter Zijlstra
2011-09-22 11:55 ` Mike Galbraith
2011-09-22 12:09 ` Peter Zijlstra
2011-09-22 13:42 ` Mike Galbraith
2011-09-22 14:05 ` Mike Galbraith
2011-09-22 15:20 ` Peter Zijlstra
2011-09-22 14:34 ` Peter Zijlstra
2011-09-22 14:38 ` Mike Galbraith
2011-09-22 14:41 ` Mike Galbraith
2011-09-22 14:41 ` Peter Zijlstra
2011-09-22 14:46 ` Mike Galbraith
2011-09-22 11:31 ` Peter Zijlstra
2011-09-22 11:46 ` Peter Zijlstra
2011-09-22 14:52 ` Oleg Nesterov
2011-09-22 15:13 ` Peter Zijlstra
2011-09-14 9:57 ` [PATCH -rt] ipc/sem: Rework semaphore wakeups Peter Zijlstra
2011-09-14 13:02 ` Mike Galbraith
2011-09-14 18:48 ` Manfred Spraul
2011-09-14 19:23 ` Peter Zijlstra
2011-09-15 17:04 ` Manfred Spraul
2011-09-12 10:04 ` [ANNOUNCE] 3.0.4-rt13 Peter Zijlstra
2011-09-12 11:33 ` Mike Galbraith
2011-09-11 18:14 ` Mike Galbraith
2011-09-12 7:33 ` Thomas Gleixner
2011-09-12 8:05 ` Mike Galbraith
2011-09-12 8:43 ` Mike Galbraith
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