snap crash plugin on RHEL 4
by Adrien Kunysz
Dear crash-utility list,
I played a bit with snap on RHEL 4 and besides the fact it doesn't build out of
the box (trivial Makefile compatibility problem), it seems it doesn't really
dump a full core properly (at least on the system I tested).
Since this is not really something that is supposed to be supported I am posting
this here rather than opening a Bugzilla. I haven't attempted to repro on other
distros.
# crash
crash> extend snap-rhel4-x86_64/snap.so
./snap-rhel4-x86_64/snap.so: shared object loaded
crash> snap mycore
mycore: [100%]
-rw-r--r-- 1 root root 4160684848 Sep 3 09:37 mycore
crash> quit
# free
total used free shared buffers cached
Mem: 16319168 8065516 8253652 0 133060 6231128
-/+ buffers/cache: 1701328 14617840
Swap: 2097144 0 2097144
# uname -a
Linux *** 2.6.9-89.ELsmp #1 SMP Mon Apr 20 10:33:05 EDT 2009 x86_64 x86_64
x86_64 GNU/Linux
# crash /usr/lib/debug/lib/modules/2.6.9-89.ELsmp/vmlinux mycore
[...]
crash: read error: kernel virtual address: 1020009d024 type: "tss_struct ist array"
Is that expected? Any idea what's going on?
Thanks,
Adrien
15 years, 2 months
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