RE: [RFC] Enhanced show_stack output to add backing store regs

From: Chen, Kenneth W <kenneth.w.chen_at_intel.com>
Date: 2005-03-12 06:12:12
Bob Montgomery wrote on Friday, March 11, 2005 10:40 AM
>
> I have a patch for arch/ia64/kernel/process.c that changes
> ia64_do_show_stack to show the contents of the register backing store
> for each level.  I think this will help our post-mortem debugging
> of hard-to-reproduce problems, especially when customers do not have
> a working kernel core dump facility, by allowing us to see function
> argument registers and some of the locals for each function leading
> to the oops.  Note: this doesn't capture function arguments per se,
> since the argument register(s) could have been modified prior to the
> call to the next stack level.  You still have to read disassembly to
> debug this way :-)
>
> Is this generally interesting?  I'm wondering if it isn't currently
> done because of some issue with oops message size, or excessive
> printk's causing problems elsewhere?

Very nice and I think is extremely valuable for debugging, especially
the stack register dump.  I vote YES!!

- Ken


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Received on Fri Mar 11 14:27:55 2005

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