linux-kernel - Re: [GIT PULL rcu/next] rcu commits for 2.6.40

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Date:	Fri, 13 May 2011 14:19:06 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Yinghai Lu <yinghai@...nel.org>
Cc:	paulmck@...ux.vnet.ibm.com, linux-kernel@...r.kernel.org
Subject: Re: [GIT PULL rcu/next] rcu commits for 2.6.40


btw., i'm seeing a boot hang too, with the attached config:

PM: Adding info for platform:serial8250
serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
device: 'ttyS0': device_add
PM: Adding info for No Bus:ttyS0
INFO: rcu_sched_state detected stalls on CPUs/tasks: { 0} (detected by 1, t=6002 jiffies)
INFO: rcu_sched_state detected stalls on CPUs/tasks: { 0} (detected by 1, t=24034 jiffies)
INFO: rcu_sched_state detected stalls on CPUs/tasks: { 0} (detected by 1, t=42066 jiffies)
INFO: rcu_sched_state detected stalls on CPUs/tasks: { 0} (detected by 1, t=6002 jiffies)
INFO: rcu_sched_state detected stalls on CPUs/tasks: { 0} (detected by 1, t=24034 jiffies)

(and the stall warnings go on forever)

Thanks,

	Ingo

View attachment "config" of type "text/plain" (67119 bytes)