search for: sbdrop

Hi, I've encountered a strange problem while using FreeBSD 6.0 for our local mirror (mirror.math.uni-bielefeld.de) and thus is providing access via ftp, http, rsync and cvsup (all local and remote). The system crashes periodically with a kernel panic (panic: sbdrop). The uptimes between two crashes are going from a few hours to a few weeks. The system is a i386, Intel Pentium 4 based with 512MB ram and a 3ware-7000 (twe) raid controller containig 1 raid 5 set with approx. 1.9TB. The kernel is a GENERIC kernel without changes of the config. These are the kern...

...ne 00:29 Online 00:30 Online 00:31 Online 00:32trace Tracing pid 12 tid 100001 td 0xffffff007b959be0 propagate_priority() at propagate_priority+0x66 turnstile_wait() at turnstile_wait+0x20f _mtx_lock_sleep() at _mtx_lock_sleep+0x89 sf_buf_mext() at sf_buf_mext+0xa3 mb_free_ext() at mb_free_ext+0x64 sbdrop_locked() at sbdrop_locked+0xb8 tcp_input() at tcp_input+0x255e ip_input() at ip_input+0x100 netisr_processqueue() at netisr_processqueue+0x78 swi_net() at swi_net+0x14d ithread_loop() at ithread_loop+0x162 fork_exit() at fork_exit+0x86 fork_trampoline() at fork_trampoline+0xe --- trap 0, rip = 0, r...