svn commit: r219138 - head/usr.bin/kdump
dchagin at freebsd.org
Thu Mar 3 18:04:10 UTC 2011
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
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.
This is the next stage :)
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