From: Mike Galbraith <bitbucket@online.de>
To: Shawn Bohrer <sbohrer@rgmadvisors.com>
Cc: Steven Rostedt <rostedt@goodmis.org>,
linux-kernel@vger.kernel.org, mingo@elte.hu,
peterz@infradead.org
Subject: Re: kernel BUG at kernel/sched_rt.c:493!
Date: Fri, 11 Jan 2013 07:03:33 +0100 [thread overview]
Message-ID: <1357884213.5716.35.camel@marge.simpson.net> (raw)
In-Reply-To: <1357881760.5716.31.camel@marge.simpson.net>
On Fri, 2013-01-11 at 06:22 +0100, Mike Galbraith wrote:
> On Thu, 2013-01-10 at 13:58 -0600, Shawn Bohrer wrote:
>
> > Here is the output:
> >
> > [ 81.278842] SysRq : Changing Loglevel
> > [ 81.279027] Loglevel set to 9
> > [ 83.285456] Initial want: 50000000 rt_b->rt_runtime: 950000000 rt_rq->rt_runtime: 900000000
> > [ 85.286452] Initial want: 50000000 rt_b->rt_runtime: 950000000 rt_rq->rt_runtime: 900000000
> > [ 85.289625] Initial want: 50000000 rt_b->rt_runtime: 950000000 rt_rq->rt_runtime: 900000000
> > [ 87.287435] Initial want: 100000000 rt_b->rt_runtime: 950000000 rt_rq->rt_runtime: 850000000
> > [ 87.290718] Initial want: 50000000 rt_b->rt_runtime: 950000000 rt_rq->rt_runtime: 900000000
> > [ 89.288469] Initial want: -50000000 rt_b->rt_runtime: 950000000 rt_rq->rt_runtime: 1000000000
> > [ 89.291550] Initial want: 150000000 rt_b->rt_runtime: 950000000 rt_rq->rt_runtime: 800000000
> > [ 89.292940] Initial want: 100000000 rt_b->rt_runtime: 950000000 rt_rq->rt_runtime: 850000000
> > [ 89.294082] Initial want: 100000000 rt_b->rt_runtime: 950000000 rt_rq->rt_runtime: 850000000
> > [ 89.295194] Initial want: 50000000 rt_b->rt_runtime: 950000000 rt_rq->rt_runtime: 900000000
> > [ 89.296274] Initial want: 50000000 rt_b->rt_runtime: 950000000 rt_rq->rt_runtime: 900000000
> > [ 90.959004] [sched_delayed] sched: RT throttling activated
> > [ 91.289470] Initial want: 200000000 rt_b->rt_runtime: 950000000 rt_rq->rt_runtime: 750000000
> > [ 91.292767] Initial want: 200000000 rt_b->rt_runtime: 950000000 rt_rq->rt_runtime: 750000000
> > [ 91.294037] Initial want: 200000000 rt_b->rt_runtime: 950000000 rt_rq->rt_runtime: 750000000
> > [ 91.295364] Initial want: 200000000 rt_b->rt_runtime: 950000000 rt_rq->rt_runtime: 750000000
> > [ 91.296355] BUG triggered, want: 200000000
> > [ 91.296355]
> > [ 91.296355] rt_rq[7]:
> > [ 91.296355] .rt_nr_running : 0
> > [ 91.296355] .rt_throttled : 0
> > [ 91.296355] .rt_time : 0.000000
> > [ 91.296355] .rt_runtime : 750.000000
> > [ 91.307332] Initial want: -50000000 rt_b->rt_runtime: 950000000 rt_rq->rt_runtime: 1000000000
> > [ 91.308440] Initial want: -100000000 rt_b->rt_runtime: 950000000 rt_rq->rt_runtime: 1050000000
> > [ 91.309586] Initial want: -150000000 rt_b->rt_runtime: 950000000 rt_rq->rt_runtime: 1100000000
> > [ 91.310716] Initial want: -200000000 rt_b->rt_runtime: 950000000 rt_rq->rt_runtime: 1150000000
> > [ 91.311707] BUG triggered, want: -200000000
> > [ 91.311707]
> > [ 91.311707] rt_rq[6]:
> > [ 91.311707] .rt_nr_running : 1
> > [ 91.311707] .rt_throttled : 0
> > [ 91.311707] .rt_time : 307.209987
> > [ 91.311707] .rt_runtime : 1150.000000
>
> That makes about as much sense as my crash did. There is no leak, but
> cpu found nada. So rd/span is changing on us?
So I looked at the locking (yet again), and (for the umpteenth time) see
no way in the world that can happen. Hrmph.
-Mike
next prev parent reply other threads:[~2013-01-11 6:03 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-05 17:46 Shawn Bohrer
2013-01-07 17:58 ` Shawn Bohrer
2013-01-07 23:02 ` Shawn Bohrer
2013-01-08 9:45 ` Mike Galbraith
2013-01-08 14:36 ` Steven Rostedt
2013-01-08 15:01 ` Shawn Bohrer
2013-01-10 4:13 ` Mike Galbraith
2013-01-10 19:58 ` Shawn Bohrer
2013-01-11 5:22 ` Mike Galbraith
2013-01-11 6:03 ` Mike Galbraith [this message]
2013-01-14 17:55 ` [PATCH] sched_rt: Use root_domain of rt_rq not current processor Shawn Bohrer
2013-01-15 3:55 ` Mike Galbraith
2013-01-24 20:33 ` [tip:sched/urgent] sched/rt: " tip-bot for Shawn Bohrer
2013-01-25 7:31 ` tip-bot for Shawn Bohrer
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1357884213.5716.35.camel@marge.simpson.net \
--to=bitbucket@online.de \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@elte.hu \
--cc=peterz@infradead.org \
--cc=rostedt@goodmis.org \
--cc=sbohrer@rgmadvisors.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®