gmirror / crash dumps
Philip M. Gollucci
pgollucci at p6m7g8.com
Fri Jul 31 04:34:05 UTC 2009
Hi,
Say I've got the following:
/dev/mirror/gm0s1b none swap sw
/dev/mirror/gm0s1a 989M 390M 520M 43% /
/dev/mirror/gm0s1g 15G 1.7G 12G 13% /usr
/dev/mirror/gm0s1h 544G 1.8M 501G 0% /usr/home
/dev/mirror/gm0s1d 1.9G 500M 1.3G 27% /usr/src
/dev/mirror/gm0s1e 1.9G 1.1G 733M 60% /usr/obj
/dev/mirror/gm0s1f 97G 2.0K 89G 0% /var
Well I'm trying to get my kernel panics to cause dumps
1) /etc/rc.conf
dumpdev=AUTO
crashinfo_enable="YES"
2) sudo chmod 700 /var/crash
3) 8GB RAM, 16GB of swap, /var/crash is 16GB < 97GB
4) I have the following in my 7-stable kernel
makeoptions DEBUG=-g
options AUDIT
options KTRACE
options KDB
options KDB_TRACE
options DDB
options GDB
options BREAK_TO_DEBUGGER
options INVARIANTS
options INVARIANT_SUPPORT
options WITNESS
options DEBUG_LOCKS
options DEBUG_VFS_LOCKS
options LOCK_PROFILING
options DIAGNOSTIC
The long and the short of it is I don't get any dumps.
I read somewhere that you can't dump onto a gmirror device.
So I've moved /var off of
/dev/mirror/gm0s1f 97G 2.0K 89G 0% /var
and I can now do what I want with this.
How do I go about re-jiggering this (2-disk gmirror) so I can use 1
slice from one of them as my dumpon(8) device?
TIA
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