Re: 2.6.21-rc6 + firstfloor patches: BUG: sleeping function called from invalid context at kernel/sched,.c:3643
Andi Kleen wrote: > Hmm, are you sure? Can you double check? With the latest tree? > > I could reproduce the problem and my change fixed the problem for me. > Hm. Me too. I just booted 2.6.21-rc7-ff-paravirt, and it seems fine. J - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: 2.6.21-rc6 + firstfloor patches: BUG: sleeping function called from invalid context at kernel/sched,.c:3643
On Saturday 14 April 2007 23:12:25 Jeremy Fitzhardinge wrote: > Andi Kleen wrote: > > Fixed now. The latest sched-clock was leaking preempt counts during > > cpu frequency changes. > > > > No, that didn't help. I think its cpufreq: Hmm, are you sure? Can you double check? With the latest tree? I could reproduce the problem and my change fixed the problem for me. -Andi - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: 2.6.21-rc6 + firstfloor patches: BUG: sleeping function called from invalid context at kernel/sched,.c:3643
Andi Kleen wrote:
> Fixed now. The latest sched-clock was leaking preempt counts during
> cpu frequency changes.
>
No, that didn't help. I think its cpufreq:
Apr 14 13:58:29 localhost kernel: BUG: scheduling while atomic:
swapper/0x0002/1
Apr 14 13:58:29 localhost kernel: 2 locks held by swapper/1:
Apr 14 13:58:29 localhost kernel: #0: (&per_cpu(cpu_policy_rwsem,
cpu)){--..}, at: [] lock_policy_rwsem_write
+0x35/0x5f
Apr 14 13:58:29 localhost kernel: #1: (userspace_mutex){--..}, at:
[] mutex_lock+0x1f/0x23
Apr 14 13:58:29 localhost kernel: [] show_trace_log_lvl+0x1a/0x30
Apr 14 13:58:29 localhost kernel: [] show_trace+0x12/0x14
Apr 14 13:58:29 localhost kernel: [] dump_stack+0x16/0x18
Apr 14 13:58:29 localhost kernel: [] __sched_text_start+0x79/0x86a
Apr 14 13:58:29 localhost kernel: [] wait_for_completion+0x74/0xaa
Apr 14 13:58:29 localhost kernel: [] set_cpus_allowed+0x6e/0x8c
Apr 14 13:58:29 localhost kernel: [] acpi_cpufreq_target+0x18d/0x262
Apr 14 13:58:29 localhost kernel: []
__cpufreq_driver_target+0x27/0x32
Apr 14 13:58:29 localhost kernel: []
cpufreq_governor_userspace+0x120/0x154
Apr 14 13:58:29 localhost kernel: [] __cpufreq_governor+0x77/0xab
Apr 14 13:58:29 localhost kernel: [] __cpufreq_set_policy+0x109/0x11a
Apr 14 13:58:29 localhost kernel: [] cpufreq_set_policy+0x32/0x6c
Apr 14 13:58:29 localhost kernel: [] cpufreq_add_dev+0x347/0x3ea
Apr 14 13:58:29 localhost kernel: [] sysdev_driver_register+0x62/0xaf
Apr 14 13:58:29 localhost kernel: []
cpufreq_register_driver+0x82/0xf2
Apr 14 13:58:29 localhost kernel: [] acpi_cpufreq_init+0x8d/0x93
Apr 14 13:58:29 localhost kernel: [] init+0x14b/0x241
Apr 14 13:58:29 localhost kernel: [] kernel_thread_helper+0x7/0x10
Apr 14 13:58:29 localhost kernel: ===
Apr 14 13:58:29 localhost kernel: initcall at 0xc0454e97:
acpi_cpufreq_init+0x0/0x93(): returned with preemption imbalance
J
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Re: 2.6.21-rc6 + firstfloor patches: BUG: sleeping function called from invalid context at kernel/sched,.c:3643
On Saturday 14 April 2007 08:20:50 Jeremy Fitzhardinge wrote: > I'm seeing this: > > Apr 13 21:55:34 localhost kernel: BUG: sleeping function called from invalid > context at kernel/sched.c:3643 Fixed now. The latest sched-clock was leaking preempt counts during cpu frequency changes. -Andi - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
2.6.21-rc6 + firstfloor patches: BUG: sleeping function called from invalid context at kernel/sched,.c:3643
I'm seeing this:
Apr 13 21:55:34 localhost kernel: BUG: sleeping function called from invalid
context at kernel/sched.c:3643
Apr 13 21:55:34 localhost kernel: in_atomic():1, irqs_disabled():0
Apr 13 21:55:34 localhost kernel: 1 lock held by events/0/8:
Apr 13 21:55:34 localhost kernel: #0: (dbs_mutex){--..}, at: []
mutex_lock+0x1f/0x23
Apr 13 21:55:34 localhost kernel: [] show_trace_log_lvl+0x1a/0x30
Apr 13 21:55:34 localhost kernel: [] show_trace+0x12/0x14
Apr 13 21:55:34 localhost kernel: [] dump_stack+0x16/0x18
Apr 13 21:55:34 localhost kernel: [] __might_sleep+0xe5/0xeb
Apr 13 21:55:34 localhost kernel: [] wait_for_completion+0x1a/0xaa
Apr 13 21:55:34 localhost kernel: [] set_cpus_allowed+0x6e/0x8c
Apr 13 21:55:34 localhost kernel: [] acpi_cpufreq_target+0x18d/0x262
Apr 13 21:55:34 localhost kernel: []
__cpufreq_driver_target+0x27/0x32
Apr 13 21:55:34 localhost kernel: [] do_dbs_timer+0x190/0x1d2
Apr 13 21:55:34 localhost kernel: [] run_workqueue+0x8f/0x15f
Apr 13 21:55:34 localhost kernel: [] worker_thread+0xf8/0x124
Apr 13 21:55:34 localhost kernel: [] kthread+0xb5/0xe1
Apr 13 21:55:34 localhost kernel: [] kernel_thread_helper+0x7/0x10
Apr 13 21:55:34 localhost kernel: ===
Apr 13 21:55:34 localhost kernel: BUG: scheduling while atomic:
events/0/0x0002/8
Apr 13 21:55:34 localhost kernel: 1 lock held by events/0/8:
Apr 13 21:55:34 localhost kernel: #0: (dbs_mutex){--..}, at: []
mutex_lock+0x1f/0x23
Apr 13 21:55:34 localhost kernel: [] show_trace_log_lvl+0x1a/0x30
Apr 13 21:55:34 localhost kernel: [] show_trace+0x12/0x14
Apr 13 21:55:34 localhost kernel: [] dump_stack+0x16/0x18
Apr 13 21:55:34 localhost kernel: [] __sched_text_start+0x79/0x86a
Apr 13 21:55:34 localhost kernel: [] wait_for_completion+0x74/0xaa
Apr 13 21:55:34 localhost kernel: [] set_cpus_allowed+0x6e/0x8c
Apr 13 21:55:34 localhost kernel: [] acpi_cpufreq_target+0x18d/0x262
Apr 13 21:55:34 localhost kernel: []
__cpufreq_driver_target+0x27/0x32
Apr 13 21:55:34 localhost kernel: [] do_dbs_timer+0x190/0x1d2
Apr 13 21:55:34 localhost kernel: [] run_workqueue+0x8f/0x15f
Apr 13 21:55:34 localhost kernel: [] worker_thread+0xf8/0x124
Apr 13 21:55:34 localhost kernel: [] kthread+0xb5/0xe1
Apr 13 21:55:34 localhost kernel: [] kernel_thread_helper+0x7/0x10
[...repeat ad nauseum...]
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