* [Bug runtime/3718] New: -c option runs a program but doesn't exit
@ 2006-12-14 17:16 eteo at redhat dot com
2006-12-14 17:16 ` [Bug runtime/3718] " eteo at redhat dot com
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: eteo at redhat dot com @ 2006-12-14 17:16 UTC (permalink / raw)
To: systemtap
SystemTap has a -c option that runs a command/program and exits when it
finishes. But in some cases, unfortunately, it does not exit even though the
command/program has exited.
[eteo@kerndev profiler]$ stap -V
SystemTap translator/driver (version 0.5.10 built 2006-10-26)
(Using Red Hat elfutils 0.124 libraries.)
Copyright (C) 2005-2006 Red Hat, Inc. and others
This is free software; see the source for copying conditions.
[eteo@kerndev profiler]$ /usr/bin/env stap -c gaim poll-select.stp 10000
Password:
libnm_glib_nm_state_cb: dbus returned an error.
(org.freedesktop.DBus.Error.ServiceUnknown) The name
org.freedesktop.NetworkManager was not provided by any .service files
(gaim has ended at this point. it just doesn't stop regardless how many ctrl+c I
used)
[1]+ Stopped ./profiler.sh -s poll-select.stp -d 10000 -c gaim
[eteo@kerndev profiler]$ killall -9 stap
[eteo@kerndev profiler]$ sudo killall -9 staprun
[eteo@kerndev profiler]$ ps aux | grep stap
eteo 7127 1.6 0.0 0 0 pts/6 Z 20:51 0:00 [stap] <defunct>
root 7249 0.0 0.0 1488 212 pts/6 D 20:51 0:00 /sbin/rmmod -w
stap_7127.ko
eteo 7256 0.0 0.0 3880 680 pts/6 R+ 20:51 0:00 grep stap
poll-select.stp is a simple stp script that runs for 10000ms, and exit.
--
Summary: -c option runs a program but doesn't exit
Product: systemtap
Version: unspecified
Status: NEW
Severity: normal
Priority: P2
Component: runtime
AssignedTo: systemtap at sources dot redhat dot com
ReportedBy: eteo at redhat dot com
http://sourceware.org/bugzilla/show_bug.cgi?id=3718
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* [Bug runtime/3718] -c option runs a program but doesn't exit
2006-12-14 17:16 [Bug runtime/3718] New: -c option runs a program but doesn't exit eteo at redhat dot com
@ 2006-12-14 17:16 ` eteo at redhat dot com
2006-12-14 22:10 ` hunt at redhat dot com
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: eteo at redhat dot com @ 2006-12-14 17:16 UTC (permalink / raw)
To: systemtap
------- Additional Comments From eteo at redhat dot com 2006-12-14 13:20 -------
[eteo@kerndev profiler]$ sudo /sbin/rmmod stap_7127.ko
ERROR: Module stap_7127 is in use
[eteo@kerndev profiler]$ sudo /sbin/rmmod -f stap_7127.ko
ERROR: Removing 'stap_7127': Device or resource busy
[eteo@kerndev profiler]$ /sbin/lsmod | grep stap_
stap_7127 655816 1
--
http://sourceware.org/bugzilla/show_bug.cgi?id=3718
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* [Bug runtime/3718] -c option runs a program but doesn't exit
2006-12-14 17:16 [Bug runtime/3718] New: -c option runs a program but doesn't exit eteo at redhat dot com
2006-12-14 17:16 ` [Bug runtime/3718] " eteo at redhat dot com
@ 2006-12-14 22:10 ` hunt at redhat dot com
2006-12-15 1:11 ` eteo at redhat dot com
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: hunt at redhat dot com @ 2006-12-14 22:10 UTC (permalink / raw)
To: systemtap
------- Additional Comments From hunt at redhat dot com 2006-12-14 18:27 -------
(In reply to comment #0)
> [eteo@kerndev profiler]$ /usr/bin/env stap -c gaim poll-select.stp 10000
>
> (gaim has ended at this point. it just doesn't stop regardless how many ctrl+c I
> used)
> [1]+ Stopped ./profiler.sh -s poll-select.stp -d 10000 -c gaim
Why do you think gaim has exited when it says "stopped" for status? What is
"profiler.sh"? Does "ps aux | grep gaim" show anything?
> [eteo@kerndev profiler]$ killall -9 stap
> [eteo@kerndev profiler]$ sudo killall -9 staprun
> [eteo@kerndev profiler]$ ps aux | grep stap
> eteo 7127 1.6 0.0 0 0 pts/6 Z 20:51 0:00 [stap] <defunct>
> root 7249 0.0 0.0 1488 212 pts/6 D 20:51 0:00 /sbin/rmmod -w
> stap_7127.ko
Hmmm. Whay is stap zombied? Where is it's parent?
> poll-select.stp is a simple stp script that runs for 10000ms, and exit.
Does the same thing happen with other scripts?
I cannot reproduce this and reading through the code doesn't immediately reveal
any places where staprun fails to receive SIGCHLD.
--
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |WAITING
http://sourceware.org/bugzilla/show_bug.cgi?id=3718
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^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug runtime/3718] -c option runs a program but doesn't exit
2006-12-14 17:16 [Bug runtime/3718] New: -c option runs a program but doesn't exit eteo at redhat dot com
2006-12-14 17:16 ` [Bug runtime/3718] " eteo at redhat dot com
2006-12-14 22:10 ` hunt at redhat dot com
@ 2006-12-15 1:11 ` eteo at redhat dot com
2006-12-15 2:15 ` eteo at redhat dot com
2007-09-19 21:44 ` hunt at redhat dot com
4 siblings, 0 replies; 6+ messages in thread
From: eteo at redhat dot com @ 2006-12-15 1:11 UTC (permalink / raw)
To: systemtap
------- Additional Comments From eteo at redhat dot com 2006-12-15 00:41 -------
(In reply to comment #2)
> (In reply to comment #0)
> > [eteo@kerndev profiler]$ /usr/bin/env stap -c gaim poll-select.stp 10000
> >
> > (gaim has ended at this point. it just doesn't stop regardless how many ctrl+c I
> > used)
> > [1]+ Stopped ./profiler.sh -s poll-select.stp -d 10000 -c gaim
>
> Why do you think gaim has exited when it says "stopped" for status? What is
> "profiler.sh"? Does "ps aux | grep gaim" show anything?
I should be clearer.
To reproduce the problem, type:
stap -c gaim -o log -e 'probe syscall.poll { log(argstr) }'
When gaim is running, click Buddies from the menu, and then Quit. You will find
that you are unable to halt stap/staprun/rmmod.
Some programs work, some doesn't. I tried vpngui, it works all the time, I tried
Thunderbird, it works sometimes (File -> Quit, but not Alt+F4). I have not check
the exit code of these programs, but I am sure that it has stopped running after
I quit these programs.
I am trying to walkthrough these as a potential end-user.
What you see below are what I tried to do to stop stap/staprun/rmmod.
> > [eteo@kerndev profiler]$ killall -9 stap
> > [eteo@kerndev profiler]$ sudo killall -9 staprun
> > [eteo@kerndev profiler]$ ps aux | grep stap
> > eteo 7127 1.6 0.0 0 0 pts/6 Z 20:51 0:00 [stap]
<defunct>
> > root 7249 0.0 0.0 1488 212 pts/6 D 20:51 0:00 /sbin/rmmod -w
> > stap_7127.ko
>
> Hmmm. Whay is stap zombied? Where is it's parent?
>
> > poll-select.stp is a simple stp script that runs for 10000ms, and exit.
>
> Does the same thing happen with other scripts?
>
> I cannot reproduce this and reading through the code doesn't immediately reveal
> any places where staprun fails to receive SIGCHLD.
>
>
--
http://sourceware.org/bugzilla/show_bug.cgi?id=3718
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^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug runtime/3718] -c option runs a program but doesn't exit
2006-12-14 17:16 [Bug runtime/3718] New: -c option runs a program but doesn't exit eteo at redhat dot com
` (2 preceding siblings ...)
2006-12-15 1:11 ` eteo at redhat dot com
@ 2006-12-15 2:15 ` eteo at redhat dot com
2007-09-19 21:44 ` hunt at redhat dot com
4 siblings, 0 replies; 6+ messages in thread
From: eteo at redhat dot com @ 2006-12-15 2:15 UTC (permalink / raw)
To: systemtap
--
What |Removed |Added
----------------------------------------------------------------------------
CC| |wmealing at redhat dot com
http://sourceware.org/bugzilla/show_bug.cgi?id=3718
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^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug runtime/3718] -c option runs a program but doesn't exit
2006-12-14 17:16 [Bug runtime/3718] New: -c option runs a program but doesn't exit eteo at redhat dot com
` (3 preceding siblings ...)
2006-12-15 2:15 ` eteo at redhat dot com
@ 2007-09-19 21:44 ` hunt at redhat dot com
4 siblings, 0 replies; 6+ messages in thread
From: hunt at redhat dot com @ 2007-09-19 21:44 UTC (permalink / raw)
To: systemtap
------- Additional Comments From hunt at redhat dot com 2007-09-19 21:06 -------
Cannot reproduce with current release. If this is still a problem, please reopen
with more details.
--
What |Removed |Added
----------------------------------------------------------------------------
Status|WAITING |RESOLVED
Resolution| |FIXED
http://sourceware.org/bugzilla/show_bug.cgi?id=3718
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2006-12-14 17:16 [Bug runtime/3718] New: -c option runs a program but doesn't exit eteo at redhat dot com
2006-12-14 17:16 ` [Bug runtime/3718] " eteo at redhat dot com
2006-12-14 22:10 ` hunt at redhat dot com
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