[email protected] wrote: > I would try booting with kmdb (or, alternatively, load kmdb once the > machine is > up but before it is hung). You can do this from command line console > login (no graphics) > by running: > > # mdb -K <-- this will load kmdb and drop into it > :c <-- this will continue > > If you must have a windowing system to reproduce the hang, you can still > use > kmdb, but, unless you can redirect console input/output from/to a serial > port, you > won't be able to see what you are doing. But, it is ok. > You type: > > # mdb -K -F <-- again, loads kmdb and drops into it. The machine will > appear hung. > > Now, carefully with no typos: > > : c <-- and enter (that's colon c enter (3 key strokes)) the machine > should > come back (unless you have a typo). > > Now, do whatever you are doing that causes the machine to hang. > When the machine is hung, type F1-a (that is function key f1 and "a" > together. > Unless the machine is "hard hung", this will put you into kmdb. Again, > you won't > be able to see what is happening if your console is on a windowing system. > Then type (again, no typos): > > $<systemdump <-- this will give you a panic dump and reboot. > > If the above doesn't work, you either made typos, or your machine is > hard hung. > If it is hard hung, add this line to /etc/system (of course, you'll have > to bounce the > machine to get it back up to do this): > > set snooping=1 > > Then reboot. This sets a "deadman" timer. Again, do your thing to cause > the hang. If the scheduling clock does not > run for (by default) 50 seconds, the machine will panic giving you a dump. > > If neither of these work, it implies that the real time clock is blocked > out. > This is highly unlikely, but can occur. > > Once you have the dump, report back...
Thanks Max, I can follow that and I will try it very shortly. I am happy to move list, I'll subscribe to mdb-discuss and post my next reply there. I'll try what you've given me and post back in an hour or two. Thanks again -- Matt Harrison _______________________________________________ opensolaris-discuss mailing list [email protected]
