[Crash-utility] crash fails to start with RHEL4/ia64 vmcore

Mark Goodwin mgoodwin at redhat.com
Mon Aug 9 00:59:45 UTC 2010


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Any help would be appreciated - I have an IA64 vmcore
from a RHEL4 system, and crash doesn't like it :

# file vmcore
vmcore: ELF 64-bit LSB core file IA-64, version 1 (SYSV), SVR4-style, from 'vmlinux'

# crash usr__2.6.9-89.EL/lib/debug/lib/modules/2.6.9-89.EL/vmlinux vmcore

crash 5.0.6
.. copyright stuff omitted ..
GNU gdb (GDB) 7.0
...
WARNING: invalid linux_banner pointer: 8a653075c6c36178
crash: usr__2.6.9-89.EL/lib/debug/lib/modules/2.6.9-89.EL/vmlinux and vmcore do 
not match!
Usage: ...

I've tried hacking the 5.0.6 src to avoid the linux_banner check,
but it just breaks further down the track :

WARNING: boot command line memory limit: 59ab0c85d99b2fa9
crash: ia64_VTOP(b929ee8856a6b891): unexpected region 5 address

So I'm stuck. The customer assures me the vmcore is from their 2.6.9-89.EL
ia64 system. At the very least it would help if I could extract some or all
of the dmesg buffer.

Dave, the vmcore is on an internal Red Hat RHEL4/ia64 system - I can
give you access details off-list if you think it will help.

Thanks
-- Mark Goodwin





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