This is the mail archive of the systemtap@sourceware.org mailing list for the systemtap project.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

[Bug runtime/10268] New: Cannot re-run script after failed run (module file not removed)


<<<<stap -V>>>>
SystemTap translator/driver (version 0.9.7/0.141 commit
release-0.9.7-215-g7492690 + changes)

Also occurs in version 0.9.7/0.141 non-git sources

<<<<Platform/OS>>>>
i686/Fedora 10

After some failed runs SystemTap does not end properly, making the script that
you failed on unusable until the SystemTap process is manually killed and the
module is removed.

Steps to reproduce:
I used callgraph.stp from
http://sourceware.org/systemtap/examples/keyword-index.html#CALLGRAPH.

1.
<<<<Failure because I don't have write permissions for target file>>>>
$ /home/yyz/chwang/Desktop/stap  -o '/home/chwang/Desktop/wtf'   -c
'/home/chwang/runtime-EclipseApplication/factorial/Debug/factorial' 
/home/chwang/Desktop/callgraph.stp 
"process(\"/home/chwang/runtime-EclipseApplication/factorial/Debug/factorial\").function(\"count\")"

ERROR: Couldn't open output file /home/chwang/Desktop/wtf: Permission denied
Error accessing systemtap module stap_ab9abab74364624017a2d3df233ae4b0_4434:
Operation not permitted
Pass 5: run failed.  Try again with another '--vp 00001' option.

2.
<<<<Subsequent runs also fail>>>>
 /home/yyz/chwang/Desktop/stap   -c
'/home/chwang/runtime-EclipseApplication/factorial/Debug/factorial' 
/home/chwang/Desktop/callgraph.stp 
"process(\"/home/chwang/runtime-EclipseApplication/factorial/Debug/factorial\").function(\"count\")"

Error inserting module
'/tmp/stap3Xz4Xn/stap_ab9abab74364624017a2d3df233ae4b0_4434.ko': File exists
Retrying, after attempted removal of module
stap_ab9abab74364624017a2d3df233ae4b0_4434 (rc -1)
Error inserting module
'/tmp/stap3Xz4Xn/stap_ab9abab74364624017a2d3df233ae4b0_4434.ko': File exists
Pass 5: run failed.  Try again with another '--vp 00001' option.

Other information:
<<<<ps aux | grep stap>>>>
root      3437  0.0  0.0   6128   200 pts/0    S    09:58   0:00
/usr/libexec/systemtap/stapio -o /home/chwang/Desktop/wtf -c
/home/chwang/runtime-EclipseApplication/factorial/Debug/factorial -u
/tmp/stapyNxlJm/stap_8af332337458963ea9f69c7a3463cf39_5280.ko
root      4331  0.0  0.0   8188   264 pts/0    S    10:07   0:00
/usr/local/libexec/systemtap/stapio -o /home/chwang/Desktop/wtf -c
/home/chwang/runtime-EclipseApplication/factorial/Debug/factorial -u
/tmp/stapnrUzmw/stap_ab9abab74364624017a2d3df233ae4b0_4434.ko

User-side fix:
Killing these processes and deleting the modules allows me to continue running
probes.

-- 
           Summary: Cannot re-run script after failed run (module file not
                    removed)
           Product: systemtap
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P3
         Component: runtime
        AssignedTo: systemtap at sources dot redhat dot com
        ReportedBy: chwang at redhat dot com


http://sourceware.org/bugzilla/show_bug.cgi?id=10268

------- You are receiving this mail because: -------
You are the assignee for the bug, or are watching the assignee.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]