[Bug runtime/6646] SystemTap scripts fail with an Oops on x86

["ananth at in dot ibm dot com" <sourceware-bugzilla at sourceware dot org>]

------- Additional Comments From ananth at in dot ibm dot com  2008-06-23 06:34 -------
Reran the test with a pre-unwind SystemTap build from the source rpm (0.6.2-1)
using the current F9 toolchain. This rpm works fine on 2.6.24 and a more recent
(2.6.26-rc6) kernel without problems.

One observation though... with any custom built kernel, the address reported by
stap on a -vv is still the non-relocated one:

Pass 1: parsed user script and 38 library script(s) in 390usr/20sys/490real ms.
probe sys_open@fs/open.c:1100 kernel section=.text pc=0xc10678b0

[...]# cat /proc/kallsyms |grep sys_open
c04678b0 T sys_open

[...]# uname -r
2.6.26-rc6

However, with a distro built kernel, the stap -vv output is the same as the
/proc/kallsyms one:

Pass 1: parsed user script and 38 library script(s) in 380usr/20sys/482real ms.
probe sys_open@fs/open.c:1062 kernel section=.text pc=0xc0480bbd

[...]# cat /proc/kallsyms |grep sys_open
c04680bbd T sys_open

[...]# uname -r
2.6.25.6-55.fc9.i686

Wierd!

-- 


http://sourceware.org/bugzilla/show_bug.cgi?id=6646

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