[Mono-bugs] [Bug 415608] Intermittent hang when calling WaitHandle. WaitOne with a timeout specified

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https://bugzilla.novell.com/show_bug.cgi?id=415608

User sharris at nvidia.com added comment
https://bugzilla.novell.com/show_bug.cgi?id=415608#c3





--- Comment #3 from Sean Harris <sharris at nvidia.com>  2008-08-07 15:44:23 MDT ---
(In reply to comment #0 from Sean Harris)
The following is another example of the output our SLES10 admins gathered about
hung processes:

USER       PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
p42006   16626  0.1  0.0  44100 16076 ?        Sl   12:36   0:00 /usr/bin/mono
/p4/triggers/ChangelistApprovalTrigger.exe 1 2654503 ChangeSubmit Live
172.16.178.79 172.16.178.79
p42006   16935  0.0  0.0  21272  2728 ?        Sl   12:36   0:00 /usr/bin/mono
/p4/triggers/ChangelistApprovalTrigger.exe 1 2654505 ChangeSubmit Live
10.20.21.49 10.20.21.49
p42006   18789  0.0  0.0  21272  2728 ?        Sl   12:38   0:00 /usr/bin/mono
/p4/triggers/ChangelistApprovalTrigger.exe 1 2654510 ChangeSubmit Live
172.16.174.121 172.16.174.121
p42006   18870  0.0  0.0  21272  2728 ?        Sl   12:38   0:00 /usr/bin/mono
/p4/triggers/ChangelistApprovalTrigger.exe 1 2654511 ChangeSubmit Live
10.20.61.27 10.20.61.27
p42006   19279  0.0  0.0  21272  2728 ?        Sl   12:39   0:00 /usr/bin/mono
/p4/triggers/ChangelistApprovalTrigger.exe 1 2654506 ChangeSubmit Live
10.19.31.77 10.19.31.77

  PID WCHAN  S TTY          TIME COMMAND
16626 184466 S ?        00:00:00 /usr/bin/mono
/p4/triggers/ChangelistApprovalTrigger.exe 1 2654503 ChangeSubmit Live
172.16.178.79 172.16.178.79
16935 semtim S ?        00:00:00 /usr/bin/mono
/p4/triggers/ChangelistApprovalTrigger.exe 1 2654505 ChangeSubmit Live
10.20.21.49 10.20.21.49
18789 semtim S ?        00:00:00 /usr/bin/mono
/p4/triggers/ChangelistApprovalTrigger.exe 1 2654510 ChangeSubmit Live
172.16.174.121 172.16.174.121
18870 semtim S ?        00:00:00 /usr/bin/mono
/p4/triggers/ChangelistApprovalTrigger.exe 1 2654511 ChangeSubmit Live
10.20.61.27 10.20.61.27
19279 semtim S ?        00:00:00 /usr/bin/mono
/p4/triggers/ChangelistApprovalTrigger.exe 1 2654506 ChangeSubmit Live
10.19.31.77 10.19.31.77


p4sw-new:~ # strace -p 16626
Process 16626 attached - interrupt to quit
futex(0x2b8f5e8db980, FUTEX_WAIT, 2, NULL <unfinished ...>
Process 16626 detached
p4sw-new:~ # strace -p 16935
Process 16935 attached - interrupt to quit
semop(69828673, 0x7fffe5d46d50, 1 <unfinished ...>
Process 16935 detached
p4sw-new:~ # strace -p 18789
Process 18789 attached - interrupt to quit
semop(69828673, 0x7fff1794c950, 1 <unfinished ...>
Process 18789 detached
p4sw-new:~ # strace -p 18870
Process 18870 attached - interrupt to quit
semop(69828673, 0x7fffaf865870, 1 <unfinished ...>
Process 18870 detached
p4sw-new:~ # ipcs -s -i 69828673
Process 19279 attached - interrupt to quit
semop(69828673, 0x7fff690b90d0, 1 <unfinished ...>
Process 19279 detached 

p4sw-new:~ # ipcs -s -i 69828673

Semaphore Array semid=69828673
uid=3525         gid=1607        cuid=3525       cgid=1607
mode=0600, access_perms=0600
nsems = 8
otime = Thu Aug  7 12:39:49 2008
ctime = Thu Aug  7 12:36:00 2008
semnum     value      ncount     zcount     pid
0          1          0          0          0
1          1          0          0          0
2          1          0          0          16626
3          0          9          0          16626
4          1          0          0          0
5          1          0          0          0
6          1          0          0          19279
7          5          0          0          19279


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