linux-kernel - Re: BUG: soft lockup - CPU#1 stuck for 15s! [swapper:0]

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Message-Id: <20071207151714.51b80234.akpm@linux-foundation.org>
Date:	Fri, 7 Dec 2007 15:17:14 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	"Parag Warudkar" <parag.warudkar@...il.com>,
	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	linux-kernel@...r.kernel.org, venkatesh.pallipadi@...el.com,
	torvalds@...ux-foundation.org, linux-acpi@...r.kernel.org
Subject: Re: BUG: soft lockup - CPU#1 stuck for 15s! [swapper:0]

On Fri, 7 Dec 2007 17:53:47 -0500
"Parag Warudkar" <parag.warudkar@...il.com> wrote:

> Got this on today's git (2.6.24-rc4) while compiling  stuff - Looks
> like it is related to CpuIdle stuff.
> I chose CONFIG_CPU_IDLE for the first time so I don't know when this
> was introduced.
> 
> This is on x86_32, SMP.
> 
> BUG: soft lockup - CPU#1 stuck for 15s! [swapper:0]
> 
> Pid: 0, comm: swapper Not tainted (2.6.24-rc4 #3)
> EIP: 0060:[<c0603e22>] EFLAGS: 00000202 CPU: 1
> EIP is at _spin_lock_irqsave+0x16/0x27
> EAX: c06b4110 EBX: 00000001 ECX: f7873808 EDX: 00000293
> ESI: 00000005 EDI: f7873808 EBP: 00000000 ESP: f7829f10
>  DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068
> CR0: 8005003b CR2: 004f5960 CR3: 372c5000 CR4: 000006d0
> DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000
> DR6: ffff0ff0 DR7: 00000400
>  [<c0438233>] tick_broadcast_oneshot_control+0x10/0xda
>  [<c0437c82>] tick_notify+0x1d4/0x2eb
>  [<c04281b4>] get_next_timer_interrupt+0x143/0x1b4
>  [<c0605819>] notifier_call_chain+0x2a/0x47
>  [<c04345a0>] raw_notifier_call_chain+0x17/0x1a
>  [<c04378b7>] clockevents_notify+0x19/0x4f
>  [<c0533cc3>] acpi_idle_enter_simple+0x183/0x1d0
>  [<c058cea3>] cpuidle_idle_call+0x53/0x78
>  [<c058ce50>] cpuidle_idle_call+0x0/0x78
>  [<c0402575>] cpu_idle+0x97/0xb8

OK, thanks.  Another one for the regression list, please.
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