https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=235472
Bug ID: 235472
Summary: [panic] Kernel panic page fault in fork_trampoline
FreeBSD-12.0
Product: Base System
Version: 12.0-RELEASE
Hardware: amd64
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: kern
Assignee: b...@freebsd.org
Reporter: gir...@freebsd.org
Created attachment 201700
--> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=201700&action=edit
core.txt.0
panic: page fault
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This GDB was configured as "amd64-marcel-freebsd"...
Unread portion of the kernel message buffer:
Fatal trap 12: page fault while in kernel mode
cpuid = 1; apic id = 01
fault virtual address = 0x0
fault code = supervisor read instruction, page not present
instruction pointer = 0x20:0x0
stack pointer = 0x28:0xfffffe017b1ee938
frame pointer = 0x28:0xfffffe017b1ee9e0
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 = 1
time = 1549154153
KDB: stack backtrace:
#0 0xffffffff80be7977 at kdb_backtrace+0x67
#1 0xffffffff80b9b563 at vpanic+0x1a3
#2 0xffffffff80b9b3b3 at panic+0x43
#3 0xffffffff8107496f at trap_fatal+0x35f
#4 0xffffffff810749c9 at trap_pfault+0x49
#5 0xffffffff81073fee at trap+0x29e
#6 0xffffffff8104f315 at calltrap+0x8
#7 0xffffffff80bb5a39 at softclock+0x79
#8 0xffffffff80b5ee17 at ithread_loop+0x1a7
#9 0xffffffff80b5bf33 at fork_exit+0x83
#10 0xffffffff810502fe at fork_trampoline+0xe
Uptime: 2h16m58s
Dumping 16189 out of 261976
MB:..1%..11%..21%..31%..41%..51%..61%..71%..81%..91%
Readi
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