[Crash-utility] Re: Viewing module symbols using crash

[Dave Anderson]

> Hi Dave,
> I attempted to try your suggested commands, but it tends to fail on my 
> machine:
> 
> 
> libl041:/var/log/dump # crash -s vmlinux.sles10sp2.smp.x86_64 
> 2008-08-08-23\:27/vmcore
> crash> struct ext3_xattr_search
> struct: invalid data structure reference: ext3_xattr_search
> crash> mod -s ext3
>      MODULE       NAME                   SIZE  OBJECT FILE
> ffffffff8856a500  ext3                 153360  
> /lib/modules/2.6.16.60-0.21-smp/kernel/fs/ext3/ext3.ko
> crash> struct ext3_xattr_search
> struct: invalid data structure reference: ext3_xattr_search
> crash> struct ext3_xattr_info
> struct: invalid data structure reference: ext3_xattr_info
> 
> 
> crash> sys
>       KERNEL: vmlinux.sles10sp2.smp.x86_64
>     DUMPFILE: 2008-08-08-23:27/vmcore
>         CPUS: 4
>         DATE: Fri Aug  8 23:20:09 2008
>       UPTIME: 01:31:48
> LOAD AVERAGE: 2.48, 1.32, 0.56
>        TASKS: 157
>     NODENAME: libl041
>      RELEASE: 2.6.16.60-0.21-smp
>      VERSION: #1 SMP Tue May 6 12:41:02 UTC 2008
>      MACHINE: x86_64  (1995 Mhz)
>       MEMORY: 3.9 GB
>        PANIC: "Oops: 0000 [1] SMP " (check log for details)
> 
> crash version: 4.0-4.10   gdb version: 6.1
> 
> I tried the same after compiling and installing the latest crash version 
> (crash version: 4.0-6.3   gdb version: 6.1) with no difference in results.
> 
> What would you suggest?
> 
> Thanks
> Durga

The first thing to verify is whether those two structures existed
in the 2.6.16-era timeframe?

Dave