Bug #12548
Updated by Jim Pingle over 2 years ago
I've hit this on my edge twice now on 22.01 snapshots but I don't have a lead on a cause yet. The panics happened a while apart (Nov 12th and Nov 29th), there were a few interface events this morning as I had an issue on one of my WANs. Panic message: <pre> Fatal trap 12: page fault while in kernel mode cpuid = 1; apic id = 02 fault virtual address = 0x10 fault code = supervisor read data, page not present instruction pointer = 0x20:0xffffffff8105bbfb stack pointer = 0x0:0xfffffe00401f3b30 frame pointer = 0x0:0xfffffe00401f3bc0 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 = 12 (swi4: clock (0)) trap number = 12 panic: page fault cpuid = 3 time = 1638192056 KDB: enter: panic </pre> Backtrace: <pre> db:0:kdb.enter.default> bt Tracing pid 12 tid 100056 td 0xfffff8000546c000 kdb_enter() at kdb_enter+0x37/frame 0xfffffe00401f37f0 vpanic() at vpanic+0x197/frame 0xfffffe00401f3840 panic() at panic+0x43/frame 0xfffffe00401f38a0 trap_fatal() at trap_fatal+0x391/frame 0xfffffe00401f3900 trap_pfault() at trap_pfault+0x4f/frame 0xfffffe00401f3950 trap() at trap+0x286/frame 0xfffffe00401f3a60 calltrap() at calltrap+0x8/frame 0xfffffe00401f3a60 --- trap 0xc, rip = 0xffffffff8105bbfb, rsp = 0xfffffe00401f3b30, rbp = 0xfffffe00401f3bc0 --- nd6_dad_timer() at nd6_dad_timer+0x4b/frame 0xfffffe00401f3bc0 softclock_call_cc() at softclock_call_cc+0x141/frame 0xfffffe00401f3c70 softclock() at softclock+0x79/frame 0xfffffe00401f3c90 ithread_loop() at ithread_loop+0x23c/frame 0xfffffe00401f3cf0 fork_exit() at fork_exit+0x7e/frame 0xfffffe00401f3d30 fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe00401f3d30 --- trap 0, rip = 0, rsp = 0, rbp = 0 --- </pre> Mateusz said he suspects it's fixed by https://reviews.freebsd.org/D32811 https://reviews.freebsd.org/D32810