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[Bug testsuite/10335] New: systemtap.base/strftime.exp hangs


Occasionally the systemtap.base/strftime.exp hangs. A killall ls (twice) makes
it going again.

Process list looks like:
 2888 ?        Sl     0:01 gnome-terminal --geometry=80x58
 2889 ?        S      0:00  \_ gnome-pty-helper
 2890 pts/0    Ss     0:00  \_ bash
 4303 pts/0    S+     0:00  |   \_ make installcheck
 4560 pts/0    S+     0:00  |       \_ make -C testsuite installcheck RUNTESTFLA
 4562 pts/0    S+     0:00  |           \_ make check-DEJAGNU RUNTESTFLAGS= --to
 4563 pts/0    S+     0:00  |               \_ /bin/sh -c srcdir=`CDPATH="${ZSH_
 4610 pts/0    S+     0:00  |                   \_ /bin/sh ./execrc runtest --to
 4611 pts/0    S+     0:01  |                       \_ expect -- /usr/share/deja
13851 ?        Zs     0:00  |                           \_ [stap] <defunct>
14036 ?        Zs     0:00  |                           \_ [stap] <defunct>
14221 ?        Zs     0:00  |                           \_ [stap] <defunct>
14406 ?        Zs     0:00  |                           \_ [stap] <defunct>
16340 ?        Zs     0:00  |                           \_ [stap] <defunct>
18247 ?        Zs     0:04  |                           \_ [ls_4611] <defunct>
18439 ?        Zs     0:00  |                           \_ [ls_4611] <defunct>
18631 ?        Zs     0:00  |                           \_ [ls_4611] <defunct>
18823 ?        Zs     0:00  |                           \_ [ls_4611] <defunct>
19765 ?        Zs     0:00  |                           \_ [sh] <defunct>
19770 ?        Zs     0:00  |                           \_ [stap] <defunct>
19781 ?        Zs     0:00  |                           \_ [stap] <defunct>
19785 ?        Zs     0:00  |                           \_ [sh] <defunct>
19790 ?        Zs     0:00  |                           \_ [stap] <defunct>
22629 ?        Zs     0:01  |                           \_ [stap] <defunct>
23921 ?        Zs     0:00  |                           \_ [stap] <defunct>
 1513 ?        Zs     0:00  |                           \_ [stap] <defunct>
 1996 ?        Zs     0:00  |                           \_ [stap] <defunct>
 2414 ?        Zs     0:01  |                           \_ [stap] <defunct>
 2850 ?        Zs     0:00  |                           \_ [stap] <defunct>
 2854 ?        Zs     0:00  |                           \_ [stap] <defunct>
 2857 ?        Zs     0:00  |                           \_ [stap] <defunct>
 3062 pts/17   Ss+    0:00  |                           \_ ls -1
 2919 pts/1    Ss     0:00  \_ bash
 7037 pts/1    S+     0:00  |   \_ tail -f testsuite/systemtap.log
 3067 pts/18   Ss     0:00  \_ bash
 3096 pts/18   R+     0:00      \_ ps axf

testsuite/systemtap.log has:
Running /home/mark/src/systemtap/testsuite/systemtap.base/strftime.exp ...
%07_09:36:07

After kill the ls process testsuite/systemtap.log has:
Running /home/mark/src/systemtap/testsuite/systemtap.base/strftime.exp ...
%07_09:36:07PASS: strftime (%S and %T)
%07_09:36:07
%,20,2009,09,06,26,26,2009-06-26,09,09,177, 9, 9,43,09:43,5,5

And another ls process seems stuck:

 2889 ?        S      0:00  \_ gnome-pty-helper
 2890 pts/0    Ss     0:00  \_ bash
 4303 pts/0    S+     0:00  |   \_ make installcheck
 4560 pts/0    S+     0:00  |       \_ make -C testsuite installcheck RUNTESTFLAGS=
 4562 pts/0    S+     0:00  |           \_ make check-DEJAGNU RUNTESTFLAGS=
--tool_opts \'install \'
 4563 pts/0    S+     0:00  |               \_ /bin/sh -c
srcdir=`CDPATH="${ZSH_VERSION+.}:" && cd . && pwd`; export srcdir;
\?EXPECT=expect; export EXPECT; \?runtest="env SYST
 4610 pts/0    S+     0:00  |                   \_ /bin/sh ./execrc runtest
--tool systemtap --tool_opts '' --srcdir /home/mark/src/systemtap/testsuite
--tool_opts 'install '
 4611 pts/0    S+     0:01  |                       \_ expect --
/usr/share/dejagnu/runtest.exp --tool systemtap --tool_opts  --srcdir
/home/mark/src/systemtap/testsuite --tool
13851 ?        Zs     0:00  |                           \_ [stap] <defunct>
14036 ?        Zs     0:00  |                           \_ [stap] <defunct>
14221 ?        Zs     0:00  |                           \_ [stap] <defunct>
14406 ?        Zs     0:00  |                           \_ [stap] <defunct>
16340 ?        Zs     0:00  |                           \_ [stap] <defunct>
18247 ?        Zs     0:04  |                           \_ [ls_4611] <defunct>
18439 ?        Zs     0:00  |                           \_ [ls_4611] <defunct>
18631 ?        Zs     0:00  |                           \_ [ls_4611] <defunct>
18823 ?        Zs     0:00  |                           \_ [ls_4611] <defunct>
19765 ?        Zs     0:00  |                           \_ [sh] <defunct>
19770 ?        Zs     0:00  |                           \_ [stap] <defunct>
19781 ?        Zs     0:00  |                           \_ [stap] <defunct>
19785 ?        Zs     0:00  |                           \_ [sh] <defunct>
19790 ?        Zs     0:00  |                           \_ [stap] <defunct>
22629 ?        Zs     0:01  |                           \_ [stap] <defunct>
23921 ?        Zs     0:00  |                           \_ [stap] <defunct>
 1513 ?        Zs     0:00  |                           \_ [stap] <defunct>
 1996 ?        Zs     0:00  |                           \_ [stap] <defunct>
 2414 ?        Zs     0:01  |                           \_ [stap] <defunct>
 2850 ?        Zs     0:00  |                           \_ [stap] <defunct>
 2854 ?        Zs     0:00  |                           \_ [stap] <defunct>
 2857 ?        Zs     0:00  |                           \_ [stap] <defunct>
 3163 pts/19   Ss+    0:00  |                           \_ ls -1
 2919 pts/1    Ss     0:00  \_ bash
 7037 pts/1    S+     0:00  |   \_ tail -f testsuite/systemtap.log
 3067 pts/18   Rs     0:00  \_ bash
 3166 pts/18   R+     0:00      \_ ps axf

killing that ls -1 process starts things again and testsuite/systemtap.log says:

Running /home/mark/src/systemtap/testsuite/systemtap.base/strftime.exp ...
%07_09:36:07PASS: strftime (%S and %T)
%07_09:36:07
%,20,2009,09,06,26,26,2009-06-26,09,09,177, 9, 9,43,09:43,5,5PASS: strftime
(except %S and %T)
testcase /home/mark/src/systemtap/testsuite/systemtap.base/strftime.exp
completed in 573 seconds

This is on 2.6.29.5-191.fc11.x86_64 against systemtap git version 0.9.8/0.141
commit release-0.9.8-108-gf1d04fa

-- 
           Summary: systemtap.base/strftime.exp hangs
           Product: systemtap
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: testsuite
        AssignedTo: systemtap at sources dot redhat dot com
        ReportedBy: mjw at redhat dot com


http://sourceware.org/bugzilla/show_bug.cgi?id=10335

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