Re: [Crash-utility] Xen Dumping - Expectations
On Mon, 2006-10-16 at 14:02 -0400, Dave Anderson wrote:
> I've been playing with xen dumping on x86_64 and x86 (RHEL5
20061006.2);
> The following is a simple crash session on x86_64 (using "xm dump-core
> -L"):
Interesting. It kind of looks like there's something different about the
corefile contents when using "xm dump-core" as opposed to forcing
a "real" crash, i.e., such as when using sysrq-c?
Hrm, yeah, interesting... Last I tried with an actual forced crash of a
guest, everything looked as expected when I spun up crash on the
resulting core file. Of course, its been two or three weeks now, so it
coulda changed. ;)
> Is xen dumping
> supported on x86, x86_64, ppc, ia64?
x86 and x86_64 only -- ia64 is still TBD.
ia64... yeah... I can't even get a xen guest to install w/o panicking
dom0... :(
> Can anyone point me to docs that
> talk about xen dumping (e.g. internal/external wiki?)
None that I'm aware of...
The best thing that you can do is come over to my office,
and we'll get to the bottom of this. In the meantime, it would
be interesting to know whether the behavior above is the
same when you:
1. log into the domU
2. echo c > /proc/sysrq-trigger
And another way to do it: if your domU has sysrqs enabled, then you can
issue 'xm sysrq <domU name> c' from the dom0. That's actually what will
get used for the rhts xen dumping test I've been meaning to finally
write for some time now... :)
--
Jarod Wilson
jwilson(a)redhat.com