On 07/05/12 23:27, John Baldwin wrote: > On Tuesday, July 03, 2012 1:43:30 am O. Hartmann wrote: >> The most recent build of FreeBSD 10.0-CURRENT crashes on one of our >> boxes with recent Intel hardware, see dmesg extract below. FreeBSD does >> obviously only crash on hardware with modern "Sandy-Bridge" hardware, >> the very same kernel config and a very similar setup does work very well >> on an older Intel Core2Dua architecture. >> >> Machine in question runs an older kernel (set via nextboot -k >> kernel.old) very well: >> FreeBSD 10.0-CURRENT #0 r237697: Thu Jun 28 11:45:08 CEST 2012 >> >> Most recent buildworls/kernels crash after going into multiuser mode >> (/etc/rc-scripts getting executed). Below the kernel trap message. >> >> I do this report on the fly, so if there is need for deeper >> investigations let me know, I will provide necessary detail requested. > > We would need a stack trace to debug this further. Do you have a crashdump? > Well, I built a GENERIC kernel and bootet that, it also crashes, but I didn't find any coredump (as found in the crashes with the custom kernel). I was able to do a backtrace with the GENERIC kernel, but incapable of saving the trace - I did this in a rush, sorry. I went back, just on a hunch, to FreeBSD 10.0-CURRENT #1 r237000, which works, but this isn't the last working revision. I will look tomorrow for how to generate a dump or backtrace and save that somehow (if available in the handbook). Otherwise, if not not much efford, I would appreciate any hint (for the impatient) how to generate suiatbel debug informations. Regards, Oliver
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