From: Ross Anderson <rosander@dsotm.net>
To: Stefan Priebe <s.priebe@profihost.ag>,
"linux-bcache@vger.kernel.org" <linux-bcache@vger.kernel.org>
Subject: Re: bcache_gc: BUG: soft lockup - CPU#4 stuck for 22s!
Date: Fri, 12 Sep 2014 12:51:15 -0500 [thread overview]
Message-ID: <54133293.3000901@dsotm.net> (raw)
In-Reply-To: <54127040.7090309@profihost.ag>
Greetings,
This was supposed to be corrected in the 3.17 push. I haven't seen it on
my systems over the past few weeks of testing. Can you provide more
details what was running when this occurred? What FS, hardware etc.
Ross Anderson
On 9/11/2014 11:02 PM, Stefan Priebe wrote:
> Hi,
>
> while trying to use bcache on 3.17-rc4 i got those messages and a load
> of 1000.
>
> Is this a known problem?
>
> 14-09-12 02:32:22 BUG: soft lockup - CPU#4 stuck for 23s!
> [bcache_gc:1585]
> 2014-09-12 02:31:54 INFO: rcu_sched self-detected stall on CPU {
> 4} (t=150009 jiffies g=1762124 c=1762123 q=235323)
> 2014-09-12 02:31:42 BUG: soft lockup - CPU#4 stuck for 22s!
> [bcache_gc:1585]
> 2014-09-12 02:31:14 BUG: soft lockup - CPU#4 stuck for 22s!
> [bcache_gc:1585]
> 2014-09-12 02:30:46 BUG: soft lockup - CPU#4 stuck for 22s!
> [bcache_gc:1585]
> 2014-09-12 02:30:18 BUG: soft lockup - CPU#4 stuck for 22s!
> [bcache_gc:1585]
> 2014-09-12 02:29:50 BUG: soft lockup - CPU#4 stuck for 22s!
> [bcache_gc:1585]
> 2014-09-12 02:29:22 BUG: soft lockup - CPU#4 stuck for 23s!
> [bcache_gc:1585]
> 2014-09-12 02:28:54 INFO: rcu_sched self-detected stall on CPU {
> 4} (t=105006 jiffies g=1762124 c=1762123 q=209365)
> 2014-09-12 02:28:42 BUG: soft lockup - CPU#4 stuck for 23s!
> [bcache_gc:1585]
> 2014-09-12 02:28:14 BUG: soft lockup - CPU#4 stuck for 22s!
> [bcache_gc:1585]
> 2014-09-12 02:27:46 BUG: soft lockup - CPU#4 stuck for 22s!
> [bcache_gc:1585]
> 2014-09-12 02:27:18 BUG: soft lockup - CPU#4 stuck for 22s!
> [bcache_gc:1585]
> 2014-09-12 02:26:50 BUG: soft lockup - CPU#4 stuck for 22s!
> [bcache_gc:1585]
> 2014-09-12 02:26:22 BUG: soft lockup - CPU#4 stuck for 22s!
> [bcache_gc:1585]
> 2014-09-12 02:25:54 INFO: rcu_sched self-detected stall on CPU {
> 4} (t=60003 jiffies g=1762124 c=1762123 q=136221)
> 2014-09-12 02:25:42 BUG: soft lockup - CPU#4 stuck for 23s!
> [bcache_gc:1585]
> 2014-09-12 02:25:14 BUG: soft lockup - CPU#4 stuck for 23s!
> [bcache_gc:1585]
> 2014-09-12 02:24:46 BUG: soft lockup - CPU#4 stuck for 23s!
> [bcache_gc:1585]
>
>
> Stefan
> --
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next prev parent reply other threads:[~2014-09-12 17:58 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-12 4:02 bcache_gc: BUG: soft lockup - CPU#4 stuck for 22s! Stefan Priebe
2014-09-12 17:51 ` Ross Anderson [this message]
2014-09-12 18:09 ` Stefan Priebe
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