Date: Tue, 03 Nov 2009 09:26:15 -0800 From: Mark Atkinson <atkin901@yahoo.com> To: freebsd-current@freebsd.org Subject: Re: 8.0RC2 amd64 - kernel panic running make buildworld Message-ID: <hcpp3o$q0s$1@ger.gmane.org> In-Reply-To: <20091031231545.493cee89@boiler.free.de> References: <20091031231545.493cee89@boiler.free.de>
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Kai Gallasch wrote: > Hi. > > I installed 8.0RC2-amd64 on an 8-core opteron server a few days ago. > > When I try to do a make buildworld or make buildkernel the server > reboots without any message left in the logs. The same happens > when building bigger ports (for example ruby18 or perl58) > > With 8.0-RC2 debug flags and witness seem to be disabled in the > standard GENERIC kernel, so unfortunately it is not possible for me to > build a debug kernel without my server crashing.. > > Now my idea was to install the old 8.0-BETA4 and upgrade to RC2 through > makeworld + buildkernel (gdb+witness). But no luck. When trying to > upgrade to RC2 the 8.0-BETA4 also crashes. At least 8.0-BETA4 has debug > + witness active in the GENERIC kernel.. > > So below some debug output of 8.0-BETA4 crashing. Has a vfs/ffs LOR > problem with the BETA4 already been fixed? > > Does it make sense to send in a pr with the old 8.0-BETA4? > > BTW. I installed 7.2-STABLE on this same server and did a "make > buildworld" and "make buildkernel" which completed without any problem. > > Cheers, > --Kai > > > ----- make buildworld -j7 crash, freebsd 8.0-amd64-beta4 ----- Definitely try the usual memory testing, power supply testing, etc. I had a similar problem, but with a HP DL385G5 that has some sort of "memory issue," and it would just silently reboot (which turned out to be a machine check exception.) I could never finger the problem be it with bios, the actual memory, or the fact that there's only one 4 core cpu on a two socket board and only the associated memory bank filled. I did various memory swaps to no avail, it would run memtest86 all day with no errors, and in the end I just turned superpages off and it works . Like a champ. If vm.pmap.pg_ps_enabled is 1 in 8.0-rc2, you might try rebooting with vm.pmap.pg_ps_enabled="0" in /boot/loader.conf and try another buildworld.
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