netdev - Intermittent lockups creating/manipulating network namespaces (was Re: large degradation in ip netns add/exec performance in 3.13?)

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <52FD08B0.2050102@hp.com>
Date:	Thu, 13 Feb 2014 10:02:24 -0800
From:	Rick Jones <rick.jones2@...com>
To:	netdev@...r.kernel.org
Subject: Intermittent lockups creating/manipulating network namespaces (was
  Re: large degradation in ip netns add/exec performance in 3.13?)

On 02/11/2014 04:56 PM, Rick Jones wrote:
> On 02/11/2014 02:26 PM, Rick Jones wrote:
>> I did have the system lockup once at 16 concurrent streams on the 3.13.0
>> kernel.  Didn't happen the next two times I tried.
>
> I've had it happen again with a slightly tweaked ("heavier") fake router
> creation.  I'm guessing the attached soft lockup messages are related
> and may help point somewhere.

The 16 concurrent streams lockup.  The "rest of the system" keeps going.

I've had the same hang happen with 3.14.0-rc2 as well.  I was able to 
take a crash dump via "echo c > /proc/sysrq-trigger" but I have no clue 
how to look at it.  More than willing to upload it to netperf.org.

rick jones
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html