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SubjectRe: LTP 20080131 causes defunct processes w/2.6.30-rc1 (possible ptrace issue?)
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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
TracerPid: 0
Uid: 0 0 0 0
Gid: 0 0 0 0
FDSize: 0
Groups: 0 1 2 3 4 6 10
Threads: 1
SigQ: 8/16384
SigPnd: 0000000000000000
ShdPnd: 0000000000004100
SigBlk: 0000000000000000
SigIgn: 0000000000000000
SigCgt: 0000000000000000
CapInh: 0000000000000000
CapPrm: fffffffffffffeff
CapEff: fffffffffffffeff
CapBnd: fffffffffffffeff
voluntary_ctxt_switches: 6
nonvoluntary_ctxt_switches: 0

If you have suggestion on how to dump the stack I can provide that as
well.

> If the parent is 'init', is there anything special about the init on
> your board
> or on the simulator - like are you running the tests in a container ?

Its an old init from fedora 3 or something like that. Its not running
in any special way (not container, no hypervisor, etc.)

- k


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