From: Manfred Spraul <manfred@colorfullife.com>
To: Vineet Gupta <Vineet.Gupta1@synopsys.com>
Cc: "sedat.dilek@gmail.com" <sedat.dilek@gmail.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
Davidlohr Bueso <dave.bueso@gmail.com>,
Davidlohr Bueso <davidlohr.bueso@hp.com>,
linux-next <linux-next@vger.kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
Stephen Rothwell <sfr@canb.auug.org.au>,
Andrew Morton <akpm@linux-foundation.org>,
linux-mm <linux-mm@kvack.org>, Andi Kleen <andi@firstfloor.org>,
Rik van Riel <riel@redhat.com>,
Jonathan Gonzalez <jgonzalez@linets.cl>
Subject: Re: ipc-msg broken again on 3.11-rc7?
Date: Tue, 03 Sep 2013 09:49:48 +0200 [thread overview]
Message-ID: <5225949C.9030201@colorfullife.com> (raw)
In-Reply-To: <C2D7FE5348E1B147BCA15975FBA2307514160B@IN01WEMBXA.internal.synopsys.com>
[-- Attachment #1: Type: text/plain, Size: 912 bytes --]
Hi Vineet,
On 09/03/2013 09:34 AM, Vineet Gupta wrote:
> However assuming we are going ahead with debugging this - can you
> please confirm whether you see the issue on x86 as well as I have not
> tested that ? I vaguely remember one of your earlier posts suggested
> you did Thx, -Vineet
I'm unable to reproduce the issue so far. I ran
- something like 4000 stock msgctl08 with 4 cores on x86.
- a few runs with modified msgctl08 with either slowed down reader or
slowed down writer threads. (i.e.: force queue full or queue empty waits).
- a few runs (modified&unmodified) with all but one core taken offline.
I have not yet tested with PREEMPT enabled.
A few more ideas:
- what is the output of ipcs -q? Are the queues empty or full?
- what is the output of then WCHAN field with ps when it hangs?
Something like
/ #ps/ -o pid,f,stat,pcpu,pmem,psr,/wchan/=/WIDE/-/WCHAN/ -o comm,args
--
Manfred
[-- Attachment #2: Type: text/html, Size: 1532 bytes --]
WARNING: multiple messages have this Message-ID (diff)
From: Manfred Spraul <manfred@colorfullife.com>
To: Vineet Gupta <Vineet.Gupta1@synopsys.com>
Cc: "sedat.dilek@gmail.com" <sedat.dilek@gmail.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
Davidlohr Bueso <dave.bueso@gmail.com>,
Davidlohr Bueso <davidlohr.bueso@hp.com>,
linux-next <linux-next@vger.kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
Stephen Rothwell <sfr@canb.auug.org.au>,
Andrew Morton <akpm@linux-foundation.org>,
linux-mm <linux-mm@kvack.org>, Andi Kleen <andi@firstfloor.org>,
Rik van Riel <riel@redhat.com>,
Jonathan Gonzalez <jgonzalez@linets.cl>
Subject: Re: ipc-msg broken again on 3.11-rc7?
Date: Tue, 03 Sep 2013 09:49:48 +0200 [thread overview]
Message-ID: <5225949C.9030201@colorfullife.com> (raw)
In-Reply-To: <C2D7FE5348E1B147BCA15975FBA2307514160B@IN01WEMBXA.internal.synopsys.com>
[-- Attachment #1: Type: text/plain, Size: 912 bytes --]
Hi Vineet,
On 09/03/2013 09:34 AM, Vineet Gupta wrote:
> However assuming we are going ahead with debugging this - can you
> please confirm whether you see the issue on x86 as well as I have not
> tested that ? I vaguely remember one of your earlier posts suggested
> you did Thx, -Vineet
I'm unable to reproduce the issue so far. I ran
- something like 4000 stock msgctl08 with 4 cores on x86.
- a few runs with modified msgctl08 with either slowed down reader or
slowed down writer threads. (i.e.: force queue full or queue empty waits).
- a few runs (modified&unmodified) with all but one core taken offline.
I have not yet tested with PREEMPT enabled.
A few more ideas:
- what is the output of ipcs -q? Are the queues empty or full?
- what is the output of then WCHAN field with ps when it hangs?
Something like
/ #ps/ -o pid,f,stat,pcpu,pmem,psr,/wchan/=/WIDE/-/WCHAN/ -o comm,args
--
Manfred
[-- Attachment #2: Type: text/html, Size: 1532 bytes --]
next prev parent reply other threads:[~2013-09-03 7:49 UTC|newest]
Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-21 19:34 linux-next: Tree for Jun 21 [ BROKEN ipc/ipc-msg ] Sedat Dilek
2013-06-21 22:07 ` Davidlohr Bueso
2013-06-21 22:07 ` Davidlohr Bueso
2013-06-21 22:54 ` Sedat Dilek
2013-06-21 22:54 ` Sedat Dilek
2013-06-21 23:11 ` Davidlohr Bueso
2013-06-21 23:11 ` Davidlohr Bueso
2013-06-21 23:14 ` Sedat Dilek
2013-06-21 23:14 ` Sedat Dilek
2013-06-21 23:15 ` Sedat Dilek
2013-06-21 23:15 ` Sedat Dilek
2013-06-25 16:10 ` Sedat Dilek
2013-06-25 20:33 ` Davidlohr Bueso
2013-06-25 20:33 ` Davidlohr Bueso
2013-06-25 21:41 ` Sedat Dilek
2013-06-25 23:29 ` Davidlohr Bueso
2013-06-25 23:29 ` Davidlohr Bueso
2013-08-28 11:58 ` ipc-msg broken again on 3.11-rc7? (was Re: linux-next: Tree for Jun 21 [ BROKEN ipc/ipc-msg ]) Vineet Gupta
2013-08-28 11:58 ` Vineet Gupta
2013-08-29 3:04 ` Sedat Dilek
2013-08-29 3:04 ` Sedat Dilek
2013-08-29 7:21 ` Vineet Gupta
2013-08-29 7:21 ` Vineet Gupta
2013-08-29 7:52 ` Sedat Dilek
2013-08-29 7:52 ` Sedat Dilek
2013-08-30 8:19 ` Vineet Gupta
2013-08-30 8:19 ` Vineet Gupta
2013-08-30 8:27 ` Sedat Dilek
2013-08-30 8:46 ` ipc-msg broken again on 3.11-rc7? Vineet Gupta
2013-08-30 8:46 ` Vineet Gupta
[not found] ` <CALE5RAvaa4bb-9xAnBe07Yp2n+Nn4uGEgqpLrKMuOE8hhZv00Q@mail.gmail.com>
2013-08-30 16:31 ` Davidlohr Bueso
2013-08-30 16:31 ` Davidlohr Bueso
2013-08-31 17:50 ` Linus Torvalds
2013-09-02 4:58 ` Vineet Gupta
2013-09-02 16:29 ` Manfred Spraul
2013-09-02 16:29 ` Manfred Spraul
2013-09-02 16:29 ` Manfred Spraul
2013-09-03 7:16 ` Sedat Dilek
2013-09-03 7:16 ` Sedat Dilek
2013-09-03 7:34 ` Vineet Gupta
2013-09-03 7:34 ` Vineet Gupta
2013-09-03 7:49 ` Manfred Spraul [this message]
2013-09-03 7:49 ` Manfred Spraul
2013-09-03 8:43 ` Sedat Dilek
2013-09-03 8:43 ` Sedat Dilek
2013-09-03 8:44 ` Vineet Gupta
2013-09-03 8:44 ` Vineet Gupta
2013-09-03 8:57 ` Manfred Spraul
2013-09-03 8:57 ` Manfred Spraul
2013-09-03 8:57 ` Manfred Spraul
2013-09-03 9:16 ` Vineet Gupta
2013-09-03 9:16 ` Vineet Gupta
2013-09-03 9:23 ` Manfred Spraul
2013-09-03 9:23 ` Manfred Spraul
2013-09-03 9:23 ` Manfred Spraul
2013-09-03 9:51 ` Vineet Gupta
2013-09-03 10:16 ` Manfred Spraul
2013-09-03 10:16 ` Manfred Spraul
2013-09-03 10:32 ` ipc msg now works (was Re: ipc-msg broken again on 3.11-rc7?) Vineet Gupta
2013-09-03 10:32 ` Vineet Gupta
2013-09-03 22:46 ` Sedat Dilek
2013-09-03 22:46 ` Sedat Dilek
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=5225949C.9030201@colorfullife.com \
--to=manfred@colorfullife.com \
--cc=Vineet.Gupta1@synopsys.com \
--cc=akpm@linux-foundation.org \
--cc=andi@firstfloor.org \
--cc=dave.bueso@gmail.com \
--cc=davidlohr.bueso@hp.com \
--cc=jgonzalez@linets.cl \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=linux-next@vger.kernel.org \
--cc=riel@redhat.com \
--cc=sedat.dilek@gmail.com \
--cc=sfr@canb.auug.org.au \
--cc=torvalds@linux-foundation.org \
/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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.