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From: Ingo Molnar <mingo@kernel.org>
To: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: Anton Blanchard <anton@samba.org>,
	Peter Zijlstra <peterz@infradead.org>,
	tglx@linutronix.de, efault@gmx.de, htejun@gmail.com,
	linux-kernel@vger.kernel.org, tj@kernel.org,
	torvalds@linux-foundation.org, zhaolei@cn.fujitsu.com,
	yangds.fnst@cn.fujitsu.com, hpa@zytor.com,
	Stephen Rothwell <sfr@canb.auug.org.au>,
	Michael Ellerman <mpe@ellerman.id.au>,
	linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH] sched/cpuacct: Check for NULL when using task_pt_regs()
Date: Wed, 13 Apr 2016 09:43:19 +0200	[thread overview]
Message-ID: <20160413074319.GA8968@gmail.com> (raw)
In-Reply-To: <20160406132637.GA2108@linux.vnet.ibm.com>


* Srikar Dronamraju <srikar@linux.vnet.ibm.com> wrote:

> * Anton Blanchard <anton@samba.org> [2016-04-06 21:59:50]:
> 
> > Looks good, and the patch below does fix the oops for me.
> > 
> > Anton
> > --
> > 
> > task_pt_regs() can return NULL for kernel threads, so add a check.
> > This fixes an oops at boot on ppc64.
> > 
> > Signed-off-by: Anton Blanchard <anton@samba.org>
> 
> Works for me too.
> 
> Reported-and-Tested-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>

Could someone please re-send the fix, because it has not reached me nor lkml.

Thanks,

	Ingo

  parent reply	other threads:[~2016-04-13  7:43 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-03-22  8:37 [PATCH v4 0/4] cpuacct: split usage into user_usage and sys_usage Zhao Lei
2016-03-22  8:37 ` [PATCH v4 1/4] cpuacct: rename parameter in cpuusage_write for readability Zhao Lei
2016-03-22  8:37 ` [PATCH v4 2/4] cpuacct: small restruct for cpuacct Zhao Lei
2016-03-22  8:37 ` [PATCH v4 3/4] cpuacct: Show possible_cpu in cpuacct Zhao Lei
2016-03-31  9:27   ` [tip:sched/core] sched/cpuacct: Show all possible CPUs in cpuacct output tip-bot for Zhao Lei
2016-03-22  8:37 ` [PATCH v4 4/4] cpuacct: split usage into user_usage and sys_usage Zhao Lei
2016-03-31  9:27   ` [tip:sched/core] sched/cpuacct: Split usage accounting " tip-bot for Dongsheng Yang
2016-04-04 14:03     ` Srikar Dronamraju
2016-04-06  6:54       ` Ingo Molnar
2016-04-06  7:47         ` Zhao Lei
2016-04-06  7:50           ` Peter Zijlstra
2016-04-06 10:32         ` Anton Blanchard
2016-04-06 11:08           ` Peter Zijlstra
2016-04-06 11:43             ` Zhao Lei
2016-04-06 11:59             ` [PATCH] sched/cpuacct: Check for NULL when using task_pt_regs() Anton Blanchard
2016-04-06 13:26               ` Srikar Dronamraju
2016-04-06 17:05                 ` Zhao Lei
2016-04-06 17:05                   ` Zhao Lei
2016-04-13  7:43                 ` Ingo Molnar [this message]
2016-04-13 11:01                   ` Michael Ellerman
2016-04-13 11:01                     ` Michael Ellerman
2016-04-13 11:21                     ` Ingo Molnar
2016-04-11  6:16               ` Ping? " Michael Ellerman
2016-04-11  6:16                 ` Michael Ellerman
2016-04-13 11:49               ` [tip:sched/core] " tip-bot for Anton Blanchard
2016-03-22  9:44 ` [PATCH v4 0/4] cpuacct: split usage into user_usage and sys_usage Peter Zijlstra
2016-04-13  8:17 [PATCH] sched/cpuacct: Check for NULL when using task_pt_regs() Anton Blanchard

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