https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=256683
Bug ID: 256683
Summary: Fatal trap 12: page fault while in kernel mode
Product: Base System
Version: Unspecified
Hardware: amd64
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: kern
Assignee: [email protected]
Reporter: [email protected]
Hi,
I am seeing below crash in 11.2 FreeBSD kernel. The same was working fine
earlier. It's getting continuous reboot.
Fatal trap 12: page fault while in kernel mode
cpuid = 1; apic id = 01
fault virtual address = 0x0
fault code = supervisor read data, page not present
instruction pointer = 0x20:0xffffffff809238f0
stack pointer = 0x28:0xffffffff812c4330
frame pointer = 0x28:0xffffffff812c4350
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 (swapper)
trap number = 12
panic: page fault
cpuid = 1
panic: page fault
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xffffffff812c3ff0
vpanic() at vpanic+0x272/frame 0xffffffff812c4060
panic() at panic+0x43/frame 0xffffffff812c40c0
trap_fatal() at trap_fatal+0x35f/frame 0xffffffff812c4110
trap_pfault() at trap_pfault+0x49/frame 0xffffffff812c4150
trap() at trap+0x278/frame 0xffffffff812c4260
calltrap() at calltrap+0x8/frame 0xffffffff812c4260
--- trap 0xc, rip = 0xffffffff809238f0, rsp = 0xffffffff812c4330, rbp =
0xffffffff812c4350 ---
t17proc() at t17proc+0x100/frame 0xffffffff812c4350
dump_table() at dump_table+0x42/frame 0xffffffff812c4390
ip_load() at ip_load+0xa4/frame 0xffffffff812c43d0
mi_startup() at mi_startup+0x118/frame 0xffffffff812c43f0
btext() at btext+0x2c
Automatic reboot in 15 seconds - press a key on the console to abort
Rebooting...
Thanks & regards
Shamsher
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