From: Dhaval Giani <dhaval@linux.vnet.ibm.com>
To: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: linux-kernel@vger.kernel.org, Ingo Molnar <mingo@elte.hu>,
Srivatsa Vaddagiri <vatsa@linux.vnet.ibm.com>,
Mike Galbraith <efault@gmx.de>
Subject: Re: [PATCH 00/30] SMP-group balancer - take 3
Date: Sat, 28 Jun 2008 22:38:28 +0530 [thread overview]
Message-ID: <20080628170828.GA2002@linux.vnet.ibm.com> (raw)
In-Reply-To: <20080627173355.GA11381@linux.vnet.ibm.com>
Hi,
I get this at bootup
------------[ cut here ]------------
WARNING: at kernel/lockdep.c:2738 check_flags+0x8a/0x12d()
Modules linked in:
Pid: 1, comm: swapper Not tainted 2.6.26-rc8-tip #5
[<c0226971>] warn_on_slowpath+0x41/0x7b
[<c024207e>] ? trace_hardirqs_off+0xb/0xd
[<c0207fef>] ? native_sched_clock+0x8b/0x9d
[<c022d490>] ? __sysctl_head_next+0x98/0x9f
[<c057b286>] ? _spin_unlock+0x1d/0x20
[<c022d490>] ? __sysctl_head_next+0x98/0x9f
[<c0244a54>] ? __lock_acquire+0xd96/0xda5
[<c024189b>] check_flags+0x8a/0x12d
[<c0244a9e>] lock_acquire+0x3b/0x89
[<c021cb50>] ? tg_shares_up+0x0/0x170
[<c021b074>] walk_tg_tree+0x2c/0x9f
[<c021b048>] ? walk_tg_tree+0x0/0x9f
[<c02190f7>] ? tg_nop+0x0/0x5
[<c0220d24>] update_shares+0x54/0x5d
[<c0220d86>] try_to_wake_up+0x59/0x22b
[<c0220f80>] wake_up_process+0xf/0x11
[<c0237c94>] kthread_create+0x68/0x98
[<c0234d75>] ? worker_thread+0x0/0xc2
[<c0235207>] __create_workqueue_key+0x19e/0x1ee
[<c0234d75>] ? worker_thread+0x0/0xc2
[<c076dd9b>] init_workqueues+0x4c/0x5d
[<c075b36e>] kernel_init+0xcf/0x255
[<c0329858>] ? trace_hardirqs_on_thunk+0xc/0x10
[<c024379e>] ? trace_hardirqs_on_caller+0x10b/0x136
[<c0329858>] ? trace_hardirqs_on_thunk+0xc/0x10
[<c0203a92>] ? restore_nocheck_notrace+0x0/0xe
[<c075b29f>] ? kernel_init+0x0/0x255
[<c075b29f>] ? kernel_init+0x0/0x255
[<c0204623>] kernel_thread_helper+0x7/0x10
=======================
---[ end trace 4eaa2a86a8e2da22 ]---
possible reason: unannotated irqs-on.
irq event stamp: 1892
hardirqs last enabled at (1891): [<c02437d4>] trace_hardirqs_on+0xb/0xd
hardirqs last disabled at (1892): [<c024207e>]
trace_hardirqs_off+0xb/0xd
softirqs last enabled at (1548): [<c022b6eb>] __do_softirq+0x13e/0x146
softirqs last disabled at (1541): [<c022b72d>] do_softirq+0x3a/0x52
--
regards,
Dhaval
next prev parent reply other threads:[~2008-06-28 17:08 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-06-27 11:41 [PATCH 00/30] SMP-group balancer - take 3 Peter Zijlstra
2008-06-27 11:41 ` [PATCH 01/30] sched: clean up some unused variables Peter Zijlstra
2008-06-27 11:41 ` [PATCH 02/30] sched: revert the revert of: weight calculations Peter Zijlstra
2008-06-30 18:07 ` Balbir Singh
2008-07-15 20:16 ` Peter Zijlstra
2008-06-27 11:41 ` [PATCH 03/30] sched: fix calc_delta_asym() Peter Zijlstra
2008-06-27 11:41 ` [PATCH 04/30] sched: fix calc_delta_asym Peter Zijlstra
2008-06-27 11:41 ` [PATCH 05/30] sched: revert revert of: fair-group: SMP-nice for group scheduling Peter Zijlstra
2008-06-27 11:41 ` [PATCH 06/30] sched: sched_clock_cpu() based cpu_clock() Peter Zijlstra
2008-06-27 11:41 ` [PATCH 07/30] sched: fix wakeup granularity and buddy granularity Peter Zijlstra
2008-06-27 11:41 ` [PATCH 08/30] sched: add full schedstats to /proc/sched_debug Peter Zijlstra
2008-06-27 11:41 ` [PATCH 09/30] sched: fix sched_domain aggregation Peter Zijlstra
2008-06-27 11:41 ` [PATCH 10/30] sched: update aggregate when holding the RQs Peter Zijlstra
2008-06-27 11:41 ` [PATCH 11/30] sched: kill task_group balancing Peter Zijlstra
2008-06-27 11:41 ` [PATCH 12/30] sched: dont micro manage share losses Peter Zijlstra
2008-06-27 11:41 ` [PATCH 13/30] sched: no need to aggregate task_weight Peter Zijlstra
2008-06-27 11:41 ` [PATCH 14/30] sched: simplify the group load balancer Peter Zijlstra
2008-06-27 11:41 ` [PATCH 15/30] sched: fix newidle smp group balancing Peter Zijlstra
2008-06-27 11:41 ` [PATCH 16/30] sched: fix sched_balance_self() " Peter Zijlstra
2008-06-27 11:41 ` [PATCH 17/30] sched: persistent average load per task Peter Zijlstra
2008-06-27 11:41 ` [PATCH 18/30] sched: hierarchical load vs affine wakeups Peter Zijlstra
2008-06-27 11:41 ` [PATCH 19/30] sched: hierarchical load vs find_busiest_group Peter Zijlstra
2008-06-27 11:41 ` [PATCH 20/30] sched: fix load scaling in group balancing Peter Zijlstra
2008-06-27 11:41 ` [PATCH 21/30] sched: fix task_h_load() Peter Zijlstra
2008-06-27 11:41 ` [PATCH 22/30] sched: remove prio preference from balance decisions Peter Zijlstra
2008-06-27 11:41 ` [PATCH 23/30] sched: optimize effective_load() Peter Zijlstra
2008-06-27 11:41 ` [PATCH 24/30] sched: disable source/target_load bias Peter Zijlstra
2008-06-27 11:41 ` [PATCH 25/30] sched: fix shares boost logic Peter Zijlstra
2008-06-27 11:41 ` [PATCH 26/30] sched: update shares on wakeup Peter Zijlstra
2008-06-27 11:41 ` [PATCH 27/30] sched: fix mult overflow Peter Zijlstra
2008-06-27 11:41 ` [PATCH 28/30] sched: correct wakeup weight calculations Peter Zijlstra
2008-06-27 11:41 ` [PATCH 29/30] sched: incremental effective_load() Peter Zijlstra
2008-06-27 11:41 ` [PATCH 30/30] sched: bias effective_load() error towards failing wake_affine() Peter Zijlstra
2008-06-27 12:46 ` [PATCH 00/30] SMP-group balancer - take 3 Ingo Molnar
2008-06-27 17:33 ` Dhaval Giani
2008-06-28 17:08 ` Dhaval Giani [this message]
2008-06-30 12:59 ` Ingo Molnar
2008-06-30 14:53 ` Dhaval Giani
2008-07-01 10:57 ` Dhaval Giani
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