Date: Fri, 31 Jul 2009 00:23:58 -0400 From: "Philip M. Gollucci" <pgollucci@p6m7g8.com> To: questions@freebsd.org Subject: gmirror / crash dumps Message-ID: <4A7271DE.7070702@p6m7g8.com>
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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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