Date: Mon, 12 Jan 2009 15:16:40 +0000 From: Pete French <petefrench@ticketswitch.com> To: rwatson@FreeBSD.org Cc: freebsd-stable@freebsd.org, drosih@rpi.edu, rblayzor.bulk@inoc.net Subject: Re: Big problems with 7.1 locking up :-( Message-ID: <E1LMOWu-0001t4-BH@dilbert.ticketswitch.com> In-Reply-To: <alpine.BSF.2.00.0901121458140.16794@fledge.watson.org>
next in thread | previous in thread | raw e-mail | index | archive | help
> I'm not sure if you've done this already, but the normal suggestions apply: > have you compiled with INVARIANTS/WITNESS/DDB/KDB/BREAK_TO_DEBUGGER, and do > any results / panics / etc result? Sometimes these debugging tools are able > to convert hangs into panics, which gives us much more ability to debug them. I did, but it turns out I had an incorrect option in there which made the data I got not relevent. I now have another machine running a kernel with the following config: include GENERIC ident DEBUG options KDB options DDB options SW_WATCHDOG options DEBUG_VFS_LOCKS options MUTEX_DEBUG options WITNESS options LOCK_PROFILING options INVARIANTS options INVARIANT_SUPPORT options DIAGNOSTIC Those should enable me to get some useful output I hope. > If it still hangs rather than panicking, are you able to break into the > debugger on the console? If you're using a video console and not able to get > to the debugger, would it be possible to configure a serial console and use I cant add a sserial console - I am remote enough from most of these machines (Slough) and very remote from the test box (its in the USA!) so I cant get to them physicly. But I do have iLo which lets me use the console and gives me a bit of access to the front. I will check for NMI. Just had another lockup here - my working day has become a succession of running round rebooting servers though iLo at the moment. Will get back to you when the debug one has crashed - I could possibly give you direct access to the iLo console on that if you need it ? -pete.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?E1LMOWu-0001t4-BH>