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[Bug runtime/6964] process probes cause kernel crash on f9
- From: "wenji dot huang at oracle dot com" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sources dot redhat dot com
- Date: 21 Oct 2008 03:09:36 -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 wenji dot huang at oracle dot com 2008-10-21 03:09 -------
Did some tests to narrow the scope.
It works fine for:
stap -vve 'probe kernel.function("sys_open"){}' -c ls
stap -vve 'probe process("./test").syscall {}' -c ls
only got crashed when
stap -vve 'probe process.syscall {}' -c ls
I guess the reason is the spawn process by stap is being hitted. Some signals
are delayed/messed so that BUG_ON in utrace_get_signal is triggered.
--
http://sourceware.org/bugzilla/show_bug.cgi?id=6964
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