From: Sasha Levin <sasha.levin@oracle.com>
To: Andrew Morton <akpm@linux-foundation.org>,
Christoph Lameter <cl@gentwo.org>
Cc: Gilad Ben-Yossef <gilad@benyossef.com>,
Thomas Gleixner <tglx@linutronix.de>, Tejun Heo <tj@kernel.org>,
John Stultz <johnstul@us.ibm.com>,
Mike Frysinger <vapier@gentoo.org>,
Minchan Kim <minchan.kim@gmail.com>,
Hakan Akkan <hakanakkan@gmail.com>,
Max Krasnyansky <maxk@qualcomm.com>,
Frederic Weisbecker <fweisbec@gmail.com>,
"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
hughd@google.com, viresh.kumar@linaro.org, hpa@zytor.com,
mingo@kernel.org, peterz@infradead.org
Subject: Re: vmstat: On demand vmstat workers V8
Date: Mon, 28 Jul 2014 18:00:47 -0400 [thread overview]
Message-ID: <53D6C80F.8010307@oracle.com> (raw)
In-Reply-To: <20140728145443.dce6fe72aed1bbdcf95b21f6@linux-foundation.org>
On 07/28/2014 05:54 PM, Andrew Morton wrote:
> Also, Sasha's report showed this:
>
> [ 490.464613] kernel BUG at mm/vmstat.c:1278!
>
> That's your VM_BUG_ON() in vmstat_update(). That ain't no false
> positive!
>
>
>
> Is this code expecting that schedule_delayed_work() will schedule the
> work on the current CPU? I don't think it will do that. Maybe you
> should be looking at schedule_delayed_work_on().
I suspected that the re-queue might be wrong (schedule_delayed_work vs
schedule_delayed_work_on) and tried fixing that, but that didn't solve
the issue.
I could give it another go unless someone sees the issue, I might have
messed something up.
Thanks,
Sasha
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next prev parent reply other threads:[~2014-07-28 22:01 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-10 14:04 vmstat: On demand vmstat workers V8 Christoph Lameter
2014-07-11 13:20 ` Frederic Weisbecker
2014-07-11 13:56 ` Christoph Lameter
2014-07-11 13:58 ` Frederic Weisbecker
2014-07-11 15:17 ` Christoph Lameter
2014-07-11 15:19 ` Frederic Weisbecker
2014-07-11 15:22 ` Christoph Lameter
2014-07-14 20:10 ` Hugh Dickins
2014-07-14 20:51 ` Christoph Lameter
2014-07-30 3:04 ` Lai Jiangshan
2014-07-26 2:22 ` Sasha Levin
2014-07-28 18:55 ` Christoph Lameter
2014-07-28 21:54 ` Andrew Morton
2014-07-28 22:00 ` Sasha Levin [this message]
2014-07-29 15:17 ` Christoph Lameter
2014-07-29 7:56 ` Peter Zijlstra
2014-07-29 12:05 ` Tejun Heo
2014-07-29 12:23 ` Peter Zijlstra
2014-07-29 13:12 ` Tejun Heo
2014-07-29 15:10 ` Christoph Lameter
2014-07-29 15:14 ` Tejun Heo
2014-07-29 15:26 ` Christoph Lameter
2014-07-29 15:39 ` Christoph Lameter
2014-07-29 15:47 ` Sasha Levin
2014-07-29 15:59 ` Christoph Lameter
2014-07-30 3:11 ` Lai Jiangshan
2014-07-30 14:34 ` Christoph Lameter
2014-07-29 15:22 ` Christoph Lameter
2014-07-29 15:43 ` Sasha Levin
2014-08-04 21:37 ` Sasha Levin
2014-08-05 14:51 ` Christoph Lameter
2014-08-05 22:25 ` Sasha Levin
2014-08-06 14:12 ` Christoph Lameter
2014-08-07 1:50 ` Sasha Levin
2014-07-30 2:57 ` Lai Jiangshan
2014-07-30 14:45 ` Christoph Lameter
2014-07-31 0:52 ` Lai Jiangshan
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