Hi Blake, Blake Irvin wrote: > 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. > Are you directly on the console, or is the console on a serial port? If you are running over X windows, the input might still get in, but X may not be displaying. If keyboard input is not getting in, your machine is probably wedged at a high level interrupt, which sounds doubtful based on your problem description.
> 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. > If the deadman timer does not trigger, the clock is almost certainly running, and your machine is almost certainly accepting keyboard input. Good luck, max > 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 >> _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
