Re: [PATCH 00/30] SMP-group balancer - take 3

Dhaval Giani
2008-06-28T17:08:56Z

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