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[Bug runtime/6964] process probes cause kernel crash on f9
- From: "wcohen at redhat dot com" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sources dot redhat dot com
- Date: 17 Oct 2008 21:33:42 -0000
- Subject: [Bug runtime/6964] process probes cause kernel crash on f9
- References: <20081016170905.6964.wcohen@redhat.com>
- Reply-to: sourceware-bugzilla at sourceware dot org
------- Additional Comments From wcohen at redhat dot com 2008-10-17 21:33 -------
Compiled the instrumentation one line 'probe process.end {}' separately into
module then ran with:
staprun -vv 6964f.ko -c ls
This caused a crash right after the following line:
stapio:stp_main_loop:372 detaching pid 30260
Looks like things are going wrong after when the following line from
systemtap/runtime/staprun/mainloop.c is attempted:
int rc = ptrace (PTRACE_DETACH, target_pid, 0, 0);
Is there a ptrace tests that register utrace engines similar to what systemtap
generates in the instrumentation module?
--
http://sourceware.org/bugzilla/show_bug.cgi?id=6964
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