Thanks - however, the machine hangs and doesn't even accept console input when this occurs. I can't get into the kernel debugger in these cases.
I've enabled the deadman timer instead. I'm also using the automatic snapshot service to get a look at things like /var/adm/sa/sa** files that get overwritten after a hard reset. I'm just going to stay up late tonight and see what happens :) Blake > Hi Blake, > > Blake Irvin wrote: > > I'm having a very similar issue. Just updated to > 10 u6 and upgrade my zpools. They are fine (all > 3-way mirors), but I've lost the machine around > 12:30am two nights in a row. > > > > > > What I'd really like is a way to force a core dump > when the machine hangs like this. scat is a very > nifty tool for debugging such things - but I'm not > getting a core or panic or anything :( > > > You can force a dump. Here are the steps: > > Before the system is hung: > > # mdb -K -F <-- this will load kmdb and drop into > it > > Don't worry if your system now seems hung. > Type, carefully, with no typos: > > :c <-- and carriage-return. You should get your > prompt back > > Now, when the system is hung, type F1-a (that's > function key f1 and the > "a" key together. > This should put you into kmdb. Now, type, (again, no > typos): > > $<systemdump > > This should give you a panic dump, followed by > reboot, (unless your > system is hard-hung). > > max > > > _______________________________________________ > zfs-discuss mailing list > zfs-discuss@opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/zfs-discu > ss -- This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
