Minidumps in FreeBSD 4
- From: devon.odell@xxxxxxxxxxxxxxx
- Date: Thu, 17 Aug 2006 23:13:05 -0400 (EDT)
Hi all,
I'm sort of curious as to how many people might be interested in this. I'm
aware that there are still other companies who also have embedded products
/ appliances based on FreeBSD 4, and I suppose that's probably the only
interest for such a patch. It's available at:
http://databits.net/~dho/minidumps.patch.bz2
It's ~100KB uncompressed; 26KB otherwise. There are some dump-related
changes that were made to e.g. disk drivers -- so there may be some bugs.
Please let me know if you're able to use it successfully, if there are
other things you'd like to see it do, and whatnot. It's pretty much a
straight backport from Peter Wemm's minidumps which were recently MFCed to
FreeBSD 6. I only had to make a couple changes to a few things, and figure
out how to get gdb to read things correctly (which was basically a couple
lines of obvious code and bringing some extra bits from the libkvm changes
over, since gdb in 4.x doesn't use libkvm for kernel debugging).
If there's any significant interest, maybe somebody can be convinced to
commit it to RELENG_4 (ha ha ha).
Huge thanks to Peter who helped me out with understanding some of the more
hairy things towards the end.
--Devon
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