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
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