panic: general protection fault

Peter Holm pho at
Thu Apr 15 15:21:11 UTC 2021

I just got this one:

0210415 17:01:45 all (458/755):
kernel trap 9 with interrupts disabled

Fatal trap 9: general protection fault while in kernel mode
cpuid = 10; apic id = 0a
instruction pointer = 0x20:0xffffffff80c7c286
stack pointer         = 0x0:0xfffffe00e49b0730
frame pointer         = 0x0:0xfffffe00e49b0770
code segment  = base 0x0, limit 0xfffff, type 0x1b
   = DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags = resume, IOPL = 0
current process  = 12 (swi1: netisr 0)
trap number  = 9
panic: general protection fault
cpuid = 10
time = 1618498958
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe00e49b0440
vpanic() at vpanic+0x181/frame 0xfffffe00e49b0490
panic() at panic+0x43/frame 0xfffffe00e49b04f0
trap_fatal() at trap_fatal+0x387/frame 0xfffffe00e49b0550
trap() at trap+0xa4/frame 0xfffffe00e49b0660
calltrap() at calltrap+0x8/frame 0xfffffe00e49b0660
--- trap 0x9, rip = 0xffffffff80c7c286, rsp = 0xfffffe00e49b0730, rbp = 0xfffffe00e49b0770 ---
turnstile_wait() at turnstile_wait+0x46/frame 0xfffffe00e49b0770
__rw_wlock_hard() at __rw_wlock_hard+0x464/frame 0xfffffe00e49b0820
_rw_wlock_cookie() at _rw_wlock_cookie+0xb7/frame 0xfffffe00e49b0860
in_pcblookup_hash() at in_pcblookup_hash+0x76/frame 0xfffffe00e49b0890
in_pcblookup_mbuf() at in_pcblookup_mbuf+0x24/frame 0xfffffe00e49b08b0
tcp_input() at tcp_input+0x6e8/frame 0xfffffe00e49b0a10
ip_input() at ip_input+0x194/frame 0xfffffe00e49b0aa0
swi_net() at swi_net+0x1a1/frame 0xfffffe00e49b0b20
ithread_loop() at ithread_loop+0x279/frame 0xfffffe00e49b0bb0
fork_exit() at fork_exit+0x80/frame 0xfffffe00e49b0bf0

- Peter

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