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[Bug runtime/16806] kernel crash during repeated module insertion
- From: "jlebon at redhat dot com" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sourceware dot org
- Date: Thu, 03 Apr 2014 20:55:25 +0000
- Subject: [Bug runtime/16806] kernel crash during repeated module insertion
- Auto-submitted: auto-generated
- References: <bug-16806-6586 at http dot sourceware dot org/bugzilla/>
https://sourceware.org/bugzilla/show_bug.cgi?id=16806
Jonathan Lebon <jlebon at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Attachment #7529|0 |1
is obsolete| |
--- Comment #5 from Jonathan Lebon <jlebon at redhat dot com> ---
Created attachment 7531
--> https://sourceware.org/bugzilla/attachment.cgi?id=7531&action=edit
dmesg with debug flags
Note that there are multiple runs in there. The run that caused the bug starts
at 936.869106.
To reproduce:
$ stap -DDEBUG_SYMBOLS=9 -DDEBUG_TASK_FINDER=9 -DSTP_TF_DEBUG=9 --poison-cache
-p4 -m loop2_mod_verbose -e 'probe process("./loop2").function("ibar") {
println("hit"); exit() }'
loop2_mod_verbose.ko
$
$ staprun loop2_mod_verbose.ko -c 'timeout 0.1 ./loop2'
On average, requires about 7-8 runs before it crashes (seems like it's more
when debug flags are on).
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