lkml.org 
[lkml]   [2009]   [Apr]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: LTP 20080131 causes defunct processes w/2.6.30-rc1 (possible ptrace issue?)
Kumar Gala [galak@kernel.crashing.org] wrote:
>
> On Apr 9, 2009, at 2:49 PM, Sukadev Bhattiprolu wrote:
>
>> Kumar Gala [galak@kernel.crashing.org] wrote:
>>>
>>> On Apr 9, 2009, at 10:43 AM, Kumar Gala wrote:
>>>
>>>> I'm seeing some weird behavior in 2.6.30-rc1 that didn't exist in
>>>> 2.6.29.
>>>> We have a slightly older LTP version (20080131) that we run on some
>>>> embedded PPC boards. If I run the syscall tests on 2.6.29 things pass
>>>> as
>>
>> Will try to repro on a normal machine, but can you attach the
>> /proc/pid/status
>> (and possibly the stack) of the parent of the 'recv01' ?
>
> Name: recv01
> State: Z (zombie)
> Tgid: 2449
> Pid: 2449
> PPid: 1

Ok, but I meant the status of the parent (i.e /proc/1/status in this case).

To get the stack, if CONFIG_MAGIC_SYSRQ=y, you can:

$ echo 1 > /proc/sys/kernel/sysrq
$ echo t > /proc/sysrq-trigger
$ dmesg > /tmp/dmesg.out

Look in /tmp/dmesg.out for the process stack

Suka


\
 
 \ /
  Last update: 2009-04-09 23:39    [W:0.364 / U:0.120 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site