Hi,
I've got an issue with memcheck in Valgrind 3.8.1 hanging. I've left
processes running for weeks or even months but they don't complete
(normally these processes run in a few minutes tops, and they were working
fine with memcheck until a while ago.
Has anyone seen anything like this before? Here are the details:
options:
--quiet --track-origins=yes --free-fill=7a --child-silent-after-fork=yes
--fair-sched=no --log-file=/path/to/log
--suppressions=/path/to/suppression.file
strace shows:
Process 5223 attached - interrupt to quit
read(1027,
system details:
$ uname -a
Linux HOSTNAME 2.6.18-194.3.1.el5 #1 SMP Sun May 2 04:17:42 EDT 2010 x86_64
x86_64 x86_64 GNU/Linux
$ cat /etc/redhat-release
Red Hat Enterprise Linux Server release 5.5 (Tikanga)
Top shows:
732 USER 25 0 2396m 1.6g 110m S 99.8 3.5 86263:19
memcheck-amd64-
25100 USER 25 0 2498m 1.7g 112m S 99.8 3.6 86272:55
memcheck-amd64-
Ps shows pipe wait in WCHAN:
0 S nbezj7v 25100 1864 98 85 0 - 639685 pipe_w 2013
? 59-22:03:14 /path/to/valgrind options
Have seen it also hang on fast mutexes – i.e. strace/ps will show the
process in FUTEX_WAIT status.
Thanks,
David.
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