[Bug 283807] panic: Fatal trap 12: page fault while in kernel mode on FreeBSD-14.2-RELEASE

From: <bugzilla-noreply_at_freebsd.org>
Date: Thu, 02 Jan 2025 23:05:20 UTC 
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=283807

            Bug ID: 283807
           Summary: panic: Fatal trap 12: page fault while in kernel mode
                    on FreeBSD-14.2-RELEASE
           Product: Base System
           Version: 14.2-RELEASE
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: bugs@FreeBSD.org
          Reporter: freebsd@sysctl.cz

Created attachment 256361
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=256361&action=edit
core.txt.0

Hi,
Before the crash, I looked on Twitch and compiled xray-engine.

FreeBSD hades 14.2-RELEASE FreeBSD 14.2-RELEASE
releng/14.2-n269506-c8918d6c7412 GENERIC amd64

Fatal trap 12: page fault while in kernel mode
cpuid = 11; apic id = 0d
fault virtual address    = 0x30
fault code        = supervisor write data, page not present
instruction pointer    = 0x20:0xffffffff80b66712
stack pointer            = 0x28:0xfffffe0132b03cc0
frame pointer            = 0x28:0xfffffe0132b03d80
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        = 82959 (MediaDecoderStateMa)
rdi: fffffe001b223020 rsi: 0000000000000000 rdx: 0000000000000000
rcx: 0000000000000000  r8: 0000000000000201  r9: 0000000000000580
rax: 0000000000000030 rbx: fffff80073fd5c00 rbp: fffffe0132b03d80
r10: 0000000000000000 r11: 0000000000000004 r12: 000038b47428f108
r13: ffffffff81bbcad0 r14: ffffffff81bb2ad0 r15: 0000000000000000
trap number        = 12
panic: page fault
cpuid = 11
time = 1735851846
KDB: stack backtrace:
#0 0xffffffff80b8b89d at kdb_backtrace+0x5d
#1 0xffffffff80b3dc01 at vpanic+0x131
#2 0xffffffff80b3dac3 at panic+0x43
#3 0xffffffff81025a0b at trap_fatal+0x40b
#4 0xffffffff81025a56 at trap_pfault+0x46
#5 0xffffffff80ffc398 at calltrap+0x8
#6 0xffffffff80b61fc6 at __umtx_op_lock_umutex+0x46
#7 0xffffffff80b60b7e at sys__umtx_op+0x7e
#8 0xffffffff810262c5 at amd64_syscall+0x115
#9 0xffffffff80ffccab at fast_syscall_common+0xf8
Uptime: 2d13h44m10s

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