On Friday, January 14, 2011 1:44:19 pm Eugene Grosbein wrote: > On 14.01.2011 18:46, Mike Tancsa wrote: > > >> I'm using mpd 5.5 on three PPPoE routers, each servicing about 300 PPPoE > >> concurrent sessions. Routers are based on Intel SR1630GP hardware > >> platforms and > >> runs FreeBSD 7.3-RELEASE. > >> > >> I'm experiencing stability issues related to Netgraph. None of above > >> routers can > >> survive more than 20-30 days of uptime under typical load. There are > >> different > >> flavors of kernel panics, but all are somehow related to netgraph. Typical > >> backtraces follow > > > > I also have stability issues on RELENG_8. > > > > http://www.freebsd.org/cgi/query-pr.cgi?pr=153497 > > And for one of my servers (8.2-PRERELEASE/amd64 with 4GB RAM) I just cannot > obtain crashdump, > it cannot finish to write it. For example, it happened an hour ago: > > Fatal trap 12: page fault while in kernel mode > cpuid = 2; apic id = 04 > fault virtual address = 0x200000040 > fault code = supervisor read data, page not present > instruction pointer = 0x20:0xffffffff803cc979
Assuming your kernel is built with debug symbols (which is the default), one thing you can do to aid in debugging is this: gdb /boot/kernel/kernel (gdb) l *0xffffffff803cc979 Where the 0xfff<blah> bit is the part of the 'instruction pointer' value above after the colon (:) and then send the output of that in your e-mail to the list. This allows us to the source line at which the fault occurred. -- John Baldwin _______________________________________________ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"
