https://bugzilla.novell.com/show_bug.cgi?id=826374
https://bugzilla.novell.com/show_bug.cgi?id=826374#c2
--- Comment #2 from Dion Kant 2013-06-25 18:07:02 UTC ---
Created an attachment (id=545627)
--> (http://bugzilla.novell.com/attachment.cgi?id=545627)
Trace with xenctx after chrashed domU
It looks like it is harder to crash the domU when I reduce its memory. On my
test setup I was running the domU's first with 4096M. Running it with 768M, it
does take longer to crash it.
Furthermore it seems that disk activity needs to be involved, because when I do
scp dom0-t:bigrand.bin /dev/null
on the domU, I was unable to crash it. I hope the trace obtained with xenctx
will trigger more response. It should not be difficult to reproduce this issue.
I have now seen it on three different Super Micro machines.
I am unable to analyze coredumps with crash. Maybe someone can point out what I
am doing wrong.
I took the following steps on dom0:
1. make cloneconfig
2. make all
3.
dom0-t:/var/lib/xen/dump/domUA # crash /usr/src/linux/vmlinux
/usr/src/linux/System.map 2013-0625-1144.11-domUA.8.core
crash 6.0.7
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WARNING: could not find MAGIC_START!
crash: invalid kernel virtual address: 69742e6b746e6972 type: "present"
WARNING: cannot read cpu_present_map
crash: invalid kernel virtual address: 656d type: "online"
WARNING: cannot read cpu_online_map
crash: invalid kernel virtual address: 69742e6b746e6972 type:
"cpu_present_map"
crash: invalid kernel virtual address: 69742e6b746e6972 type:
"cpu_present_map"
crash: nr_node_ids: symbol does not exist
crash: unable to initialize kmem slab cache subsystem
WARNING: cannot determine pgdat list for this kernel/architecture
please wait... (gathering module symbol data)
WARNING: cannot access vmalloc'd module memory
crash: cannot determine idle task addresses from init_tasks[] or runqueues[]
crash: cannot resolve "init_task_union"
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