svn commit: r219138 - head/usr.bin/kdump

[Chagin Dmitry]

On Thu, Mar 03, 2011 at 11:14:59AM +0000, Robert Watson wrote:
> 
> On Tue, 1 Mar 2011, Dmitry Chagin wrote:
> 
> >  Teach kdump to decode linux syscalls names too.
> >
> >  Fix bug introduced in my previous commit: the kernel always dump native
> >  signal numbers, so no need to check the ABI in ktrpsig().
> 
> Does this mean that we're eliminating the need for the long-broken 
> linux_kdump?
> 

mostly yes, w/o syscall parameter decoding.

> Is there any ABI record in ktrace files, and/or should we add one somehow?
> 

Now kernel writes sv_flags to the trace file at fork, exec, exit time.
And kdump knows how to handle this.

> I'd love to be able to process a kdump file generated from a blend of ABIs: 
> i.e., if I do ktrace -di tcsh, and then run a bunch of commands from different 
> ABIs (FreeBSD/32-bit Intel, FreeBSD/64-bit Intel, Linux/32-bit Intel, and 
> possible FreeBSD/64 MIPS so that a distributed ktracing tool gathers the 
> results across hosts for a single action), have kdump Just Work.  This 
> suggests that a per-record ABI indicator might be useful.
> 
> Robert

This is the next stage :)

--
chd,
Have fun!

> 
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