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[Bug kprobes/2637] New: skipped probes in FC6
- From: "hunt at redhat dot com" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sources dot redhat dot com
- Date: 2 May 2006 20:13:12 -0000
- Subject: [Bug kprobes/2637] New: skipped probes in FC6
- Reply-to: sourceware-bugzilla at sourceware dot org
Testing using:
>stap -e 'probe kernel.function("sys_open"){printf("%s: %s\n", execname(),
user_string($filename))}' -c ps
On all FC5 kernels, it works fine.
On all FC6 kernels, I get
sh: /etc/ld.so.cache
sh: /lib/libtermcap.so.2
sh: /lib/libdl.so.2
sh: /lib/libc.so.6
sh:
ERROR: user string copy fault at 0x080cf85a near identifier '$filename' at
<input>:1:78
PID TTY TIME CMD
2437 pts/0 00:00:00 bash
3095 pts/0 00:00:00 stap
3194 pts/0 00:00:00 ps
WARNING: Number of errors: 1, skipped probes: 1
Changing user_string() in tapset/conversions.stp to ignore copy errors, I still
get skipped probes.
> WARNING: Number of errors: 0, skipped probes: 3
--
Summary: skipped probes in FC6
Product: systemtap
Version: unspecified
Status: NEW
Severity: critical
Priority: P1
Component: kprobes
AssignedTo: systemtap at sources dot redhat dot com
ReportedBy: hunt at redhat dot com
http://sourceware.org/bugzilla/show_bug.cgi?id=2637
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