Re: [LTP] Issue 3 - ptrace06 hung for 7 hours

[Mike Frysinger <vapier@gentoo.org>]

[-- Attachment #1.1: Type: Text/Plain, Size: 812 bytes --]

On Tuesday 06 October 2009 06:07:40 Garrett Cooper wrote:
>     Ran into another issue. When I was running ptrace06 in the
> syscalls test I noticed that it had been hung for over 7 hours -- is
> this a known issue?
>     strace'ing the child proc didn't help (got ENOPERM), and
> strace'ing the parent proc returned nada. I'm going to attach gdb and
> figure out what the issue is, but I was wondering whether or not
> anyone else knew.

you wont be able to strace the child because it's already attached with ptrace 
from the parent.  most likely the parent is sleeping and awaiting a signal 
from the child as there was some race that caused a mismatch.

the test probably could do with a alarm() to prevent such hangs -- in the 
normal case, it should execute in a few seconds if that.
-mike

[-- Attachment #1.2: This is a digitally signed message part. --]
[-- Type: application/pgp-signature, Size: 836 bytes --]

[-- Attachment #2: Type: text/plain, Size: 401 bytes --]

------------------------------------------------------------------------------
Come build with us! The BlackBerry® Developer Conference in SF, CA
is the only developer event you need to attend this year. Jumpstart your
developing skills, take BlackBerry mobile applications to market and stay 
ahead of the curve. Join us from November 9-12, 2009. Register now!
http://p.sf.net/sfu/devconf

[-- Attachment #3: Type: text/plain, Size: 155 bytes --]

_______________________________________________
Ltp-list mailing list
Ltp-list@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/ltp-list