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SubjectRe: Kernel 2.6.11-rc1/2 goes Postal on LTP
Bryce Harrington wrote:
> On Fri, 21 Jan 2005, Chris Wright wrote:
>>* Bryce Harrington ( wrote:
>>>Well, I'm not having much luck. strace isn't installed on the system
>>>(and is giving errors when trying to compile it). Also, the ssh session
>>>(and sshd) quits whenever I try running the following growfiles command
>>>manually, so I'm having trouble replicating the kernel panic manually.
>>Sounds very much like oom killer gone nuts.
>>># growfiles -W gf14 -b -e 1 -u -i 0 -L 20 -w -l -C 1 -T 10 glseek19 glseek19.2
>>>Anyway, if anyone wants to investigate this further, I can provide
>>>access to the machine (email me). Otherwise, I'm probably just going to
>>>wait for -rc2 and see if the problem's still there.
>>Wait no longer, it's here ;-)
> Hmm, still the kernel is going nutso. LTP and everything else on the
> system is getting killed, including the test manager process.
> Below's a bit more info scraped from the console. This is from a run on
> RH 9.0. It looks like LTP got through 722 of its 2270 tests before the
> kernel goes postal on it. This time it got through all the growfile
> commands before it died (see bottom of this post), however it looks like
> the same growfile cmd I reported earlier is the one causing the problem.
> When I run:
> mkfifo gffifo18;
> strace growfiles -b -W gf13 -e 1 -u -i 0 -L 30 -I r -r 1-4096 gffifo18 &> /tmp/growfiles_strace_log.txt
> The following happens:
> * I get this strace log:
> * The ssh session dies and returns to login prompt
> * A bunch of stuff similar to below is spewed to console

Similar for me, easy to reproduce (3 times today).
Here's a kernel messages log, with 32 processes killed,
mostly hotplug, but also bash (2x), runltp, & some daemons.

I could not login and do anything else, but I could/did
SysRq-T, P, M, S, U, B to reboot. These are also in the log.



on P4-UP, 1 GB RAM.

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