Date: Thu, 04 Dec 2008 11:34:34 +0100 From: Laszlo Nagy <gandalf@shopzeus.com> To: freebsd-stable@freebsd.org Subject: Kernel panic, Trap 12, page fault while in kernel mode and freeing free frag on 7.0 p5 amd64 Message-ID: <4937B23A.5060507@shopzeus.com>
next in thread | raw e-mail | index | archive | help
We have a production server which keeps crashing. Hardware: two Quad Core Xeons (5420), 8GB ECC ram, Intel S5000 motherboard, Areca 1680-ix12 RAID card. The memory have been replaced three times. Memtest runs OK. The motherboard was replaced, all firmwares updated to the latest version (last time an Intel engineer did this for us.) Machine is running postgresql, postfix, apache, mod_php, dovecot. Kernel was compiled with debug symbols. Machine configuration can be found here: http://195.228.74.135/info Core dumps are here (not all of them): http://195.228.74.135/crash In most cases, the error message is "page fault" but there is also a "freeing free frag". When there is no big load (weekends) then it runs for two or three days. It crashes only when there is bigger load on the server. On very busy days, it can crash three times a day. I have installed exactly the same software on a desktop computer with amd X2 BE2350 processor and 3GB non-ecc RAM, and it ran for 6 days without crashing. (Unfortunately, I cannot use that computer in production because it is incredibly slow...) I have found some other posts about a similar problem, but that issue was closed. Unfortunately, I'm not familiar with kernel debugging. Is this the right place to ask for help? Thanks, Laszlo
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?4937B23A.5060507>