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Date:      Thu, 14 Dec 2023 17:22:31 +0000
From:      bugzilla-noreply@freebsd.org
To:        bugs@FreeBSD.org
Subject:   [Bug 273890] Fatal trap 12: page fault while in kernel mode
Message-ID:  <bug-273890-227-A3fAVNDL36@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-273890-227@https.bugs.freebsd.org/bugzilla/>
References:  <bug-273890-227@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D273890

--- Comment #9 from Weldon Godfrey <weldon@excelsus.com> ---
I ran kdbg on the vmcore file, I got this...I don't know if this helps.

root@venom-f5:/var/crash # kgdb /boot/kernel/kernel /var/crash/vmcore.3
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Reading symbols from /boot/kernel/kernel...
Reading symbols from /usr/lib/debug//boot/kernel/kernel.debug...

Unread portion of the kernel message buffer:
cpuid =3D 1; apic id =3D 01
fault virtual address   =3D 0xb8
fault code              =3D supervisor read data, page not present
instruction pointer     =3D 0x20:0xffffffff80d4e890
stack pointer           =3D 0x28:0xfffffe01017ddc70
frame pointer           =3D 0x28:0xfffffe01017ddcf0
code segment            =3D base 0x0, limit 0xfffff, type 0x1b
                        =3D DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags        =3D interrupt enabled, resume, IOPL =3D 0
current process         =3D 676 (isc-net-0005)
rdi: ffffffff816c7a30 rsi: ffffffff816c7a30 rdx: 0000000000010200
rcx: 0000000000000000  r8: fffff8001b0c1400  r9: 0000000000000000
rax: fffff8014f794a80 rbx: fffff8010c069540 rbp: fffffe01017ddcf0
r10: 0000000000000000 r11: fffffe0103a59700 r12: fffff80245b80e20
r13: 000000000000c2e5 r14: 000000000000c2e5 r15: fffff8001b0c1400
trap number             =3D 12
panic: page fault
cpuid =3D 1
time =3D 1702438402
KDB: stack backtrace:
#0 0xffffffff80b9302d at kdb_backtrace+0x5d
#1 0xffffffff80b46132 at vpanic+0x132
#2 0xffffffff80b45ff3 at panic+0x43
#3 0xffffffff8103285c at trap_fatal+0x40c
#4 0xffffffff810328af at trap_pfault+0x4f
#5 0xffffffff810098e8 at calltrap+0x8
#6 0xffffffff80d708ac at udp6_bind+0x13c
#7 0xffffffff80be9132 at sobind+0x32
#8 0xffffffff80bf05c5 at kern_bindat+0xc5
#9 0xffffffff80bf045b at sys_bind+0x9b
#10 0xffffffff81033119 at amd64_syscall+0x109
#11 0xffffffff8100a1fb at fast_syscall_common+0xf8
Uptime: 19d16h43m33s
Dumping 1669 out of 16338 MB:..1%..11%..21%..31%..41%..51%..61%..71%..81%..=
91%

__curthread () at /usr/src/sys/amd64/include/pcpu_aux.h:57
57              __asm("movq %%gs:%P1,%0" : "=3Dr" (td) : "n" (offsetof(stru=
ct
pcpu,

--=20
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