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* [Bug runtime/11020] New: SIGUSR2 file switching doesn't work with busy script
@ 2009-11-25 20:51 mhiramat at redhat dot com
  2009-12-03 16:10 ` [Bug runtime/11020] " mhiramat at redhat dot com
  2009-12-03 20:37 ` mhiramat at redhat dot com
  0 siblings, 2 replies; 3+ messages in thread
From: mhiramat at redhat dot com @ 2009-11-25 20:51 UTC (permalink / raw)
  To: systemtap

stapio doesn't handle SIGUSR2 if running script dumps so much data.

e.g.
$ stap -d hoge -F -e 'probe kernel.function("sys_*") {print("hoge")}'
$ killall -USR2 stapio
<switching logs correctly>
$ killall -USR2 stapio
<doesn't switch log anymore>

Because SIGUSR2 is checked only right after ppoll(), but not checked in
read-write inner loop.

-- 
           Summary: SIGUSR2 file switching doesn't work with busy script
           Product: systemtap
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: runtime
        AssignedTo: systemtap at sources dot redhat dot com
        ReportedBy: mhiramat at redhat dot com
OtherBugsDependingO 10907
             nThis:


http://sourceware.org/bugzilla/show_bug.cgi?id=11020

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* [Bug runtime/11020] SIGUSR2 file switching doesn't work with busy script
  2009-11-25 20:51 [Bug runtime/11020] New: SIGUSR2 file switching doesn't work with busy script mhiramat at redhat dot com
@ 2009-12-03 16:10 ` mhiramat at redhat dot com
  2009-12-03 20:37 ` mhiramat at redhat dot com
  1 sibling, 0 replies; 3+ messages in thread
From: mhiramat at redhat dot com @ 2009-12-03 16:10 UTC (permalink / raw)
  To: systemtap


------- Additional Comments From mhiramat at redhat dot com  2009-12-03 16:10 -------
Created an attachment (id=4443)
 --> (http://sourceware.org/bugzilla/attachment.cgi?id=4443&action=view)
[PATCH] fix to check file switching flag inside read-write loop too.

This patch adds a check of file switching flag inside inner loop.

-- 


http://sourceware.org/bugzilla/show_bug.cgi?id=11020

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* [Bug runtime/11020] SIGUSR2 file switching doesn't work with busy script
  2009-11-25 20:51 [Bug runtime/11020] New: SIGUSR2 file switching doesn't work with busy script mhiramat at redhat dot com
  2009-12-03 16:10 ` [Bug runtime/11020] " mhiramat at redhat dot com
@ 2009-12-03 20:37 ` mhiramat at redhat dot com
  1 sibling, 0 replies; 3+ messages in thread
From: mhiramat at redhat dot com @ 2009-12-03 20:37 UTC (permalink / raw)
  To: systemtap


------- Additional Comments From mhiramat at redhat dot com  2009-12-03 20:37 -------
Committed as 5cd2f82

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED


http://sourceware.org/bugzilla/show_bug.cgi?id=11020

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end of thread, other threads:[~2009-12-03 20:37 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2009-11-25 20:51 [Bug runtime/11020] New: SIGUSR2 file switching doesn't work with busy script mhiramat at redhat dot com
2009-12-03 16:10 ` [Bug runtime/11020] " mhiramat at redhat dot com
2009-12-03 20:37 ` mhiramat at redhat dot com

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