Re: [Crash-utility] Viewing module symbols using crash
* Dave Anderson [2008-08-08 09:32]:
> [2]:
> I could get into live kernel debugging using crash on RHEL 5 after
> installing relevant kernel-debug packages. How do I do the same on SLES 10?
> As of now, I have been compiling the kernel with CONFIG_DEBUG_INFO set.
> I can use the resulting vmlinux for post crash analysis, but not for
> live analysis. Any light on how to accomplish this would be appreciated.
For SLES I'm guessing that you could use the post-built (CONFIG_DEBUG_INFO) kernel,
but also add the System.map file of the live kernel to the command line, as in:
Just install -debuginfo package, i.e. for kernel-default you need to
install kernel-default-debuginfo and
uncompress /boot/vmlinux-<version>.gz. Than just run
$ crash /boot/vmlinux-<version>
for live debugging and
$ crash /boot/vmlinux-<version> vmcore
for post debugging.
For SLES 10 SP2 GA, you find the debuginfo package at
http://beta.suse.com/private/bwalle/debuginfo/SUSE-Linux-Enterprise-Serve...
for maintenance update you have to add some debuginfo channel.
Bernhard
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Bernhard Walle, SUSE LINUX Products GmbH, Architecture Development