Hi guys, I'm experiencing (somewhat random) panics every few days. FreeBSD 10.0-STABLE #0 r265785 Fatal trap 12: page fault while in kernel mode cpuid = 0; apic id = 00 fault virtual address = 0x378 fault code = supervisor read data, page not present instruction pointer = 0x20:0xffffffff808ef4f9 stack pointer = 0x28:0xfffffe034a534960 frame pointer = 0x28:0xfffffe034a5349f0 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, long 1, def32 0, gran 1 processor eflags = interrupt enabled, resume, IOPL = 0 current process = 0 (dummynet) trap number = 12 panic: page fault cpuid = 0 KDB: stack backtrace: #0 0xffffffff8092ba30 at kdb_backtrace+0x60 #1 0xffffffff808f0f85 at panic+0x155 #2 0xffffffff80d01a5f at trap_fatal+0x38f #3 0xffffffff80d01d78 at trap_pfault+0x308 #4 0xffffffff80d01430 at trap+0x4a0 #5 0xffffffff80ce7f32 at calltrap+0x8 #6 0xffffffff80a1ca77 at ip_input+0x4a7 #7 0xffffffff809bbae2 at netisr_dispatch_src+0x62 #8 0xffffffff80adf96c at dummynet_send+0x10c #9 0xffffffff80adf584 at dummynet_task+0x2c4 #10 0xffffffff8093a095 at taskqueue_run_locked+0xe5 #11 0xffffffff8093ab28 at taskqueue_thread_loop+0xa8 #12 0xffffffff808c1b1a at fork_exit+0x9a #13 0xffffffff80ce846e at fork_trampoline+0xe (kgdb) #0 doadump (textdump=<value optimized out>) at pcpu.h:219 #1 0xffffffff808f0c02 in kern_reboot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:452 #2 0xffffffff808f0fc4 in panic (fmt=<value optimized out>) at /usr/src/sys/kern/kern_shutdown.c:759 #3 0xffffffff80d01a5f in trap_fatal (frame=<value optimized out>, eva=<value optimized out>) at /usr/src/sys/amd64/amd64/trap.c:881 #4 0xffffffff80d01d78 in trap_pfault (frame=0xfffffe034a5348b0, usermode=<value optimized out>) at /usr/src/sys/amd64/amd64/trap.c:692 #5 0xffffffff80d01430 in trap (frame=0xfffffe034a5348b0) at /usr/src/sys/amd64/amd64/trap.c:456 #6 0xffffffff80ce7f32 in calltrap () at /usr/src/sys/amd64/amd64/exception.S:232 #7 0xffffffff808ef4f9 in __rw_rlock (c=0xfffff80063753438, file=0x0, line=0) at /usr/src/sys/kern/kern_rwlock.c:420 #8 0xffffffff80a1ca77 in ip_input (m=0xfffff8010d7fc800) at /usr/src/sys/netinet/ip_input.c:593 #9 0xffffffff809bbae2 in netisr_dispatch_src (proto=<value optimized out>, source=<value optimized out>, m=0x0) at /usr/src/sys/net/netisr.c:972 #10 0xffffffff80adf96c in dummynet_send (m=<value optimized out>) at /usr/src/sys/netpfil/ipfw/ip_dn_io.c:665 #11 0xffffffff80adf584 in dummynet_task (context=<value optimized out>, pending=<value optimized out>) at /usr/src/sys/netpfil/ipfw/ip_dn_io.c:625 #12 0xffffffff8093a095 in taskqueue_run_locked (queue=0xfffff8005d7a5e00) at /usr/src/sys/kern/subr_taskqueue.c:342 #13 0xffffffff8093ab28 in taskqueue_thread_loop (arg=<value optimized out>) at /usr/src/sys/kern/subr_taskqueue.c:563 #14 0xffffffff808c1b1a in fork_exit ( callout=0xffffffff8093aa80 <taskqueue_thread_loop>, arg=0xffffffff8151b758, frame=0xfffffe034a534c00) at /usr/src/sys/kern/kern_fork.c:995 #15 0xffffffff80ce846e in fork_trampoline () at /usr/src/sys/amd64/amd64/exception.S:606 #16 0x0000000000000000 in ?? () Current language: auto; currently minimal (kgdb) Full dump is available (actually four of them at this time) if more info is needed. Any ideas? Kind regards.