https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=291294
Bug ID: 291294
Summary: panic during shutdown in pfs_modevent
Product: Base System
Version: CURRENT
Hardware: amd64
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: kern
Assignee: [email protected]
Reporter: [email protected]
kernel trap 12 with interrupts disabled
Fatal trap 12: page fault while in kernel mode
cpuid = 0; apic id = 00
fault virtual address = 0xfffffe0082eec010
fault code = supervisor read data, page not present
instruction pointer = 0x20:0xffffffff80bb5cb8
stack pointer = 0x28:0xfffffe008f44dac0
frame pointer = 0x28:0xfffffe008f44db20
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 = 1 (init)
rdi: 0000000000059cf6 rsi: 0000000000008000 rdx: 0000000000059cd7
rcx: 0000000000001cd7 r8: fffffe0082eec010 r9: fffffe000c98bc60
rax: fffffe000ef52000 rbx: 0000000000059cd7 rbp: fffffe008f44db20
r10: 0000000000000000 r11: 0000000000000001 r12: 0000059cf7000000
r13: 0000059cf7000000 r14: ffffffff82799300 r15: 0000059cd7eaa1c9
trap number = 12
panic: page fault
cpuid = 0
time = 1764467442
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe008f44d7f0
vpanic() at vpanic+0x136/frame 0xfffffe008f44d920
panic() at panic+0x43/frame 0xfffffe008f44d980
trap_pfault() at trap_pfault+0x47c/frame 0xfffffe008f44d9f0
calltrap() at calltrap+0x8/frame 0xfffffe008f44d9f0
--- trap 0xc, rip = 0xffffffff80bb5cb8, rsp = 0xfffffe008f44dac0, rbp =
0xfffffe008f44db20 ---
callout_process() at callout_process+0x138/frame 0xfffffe008f44db20
handleevents() at handleevents+0x18a/frame 0xfffffe008f44db60
timercb() at timercb+0x18e/frame 0xfffffe008f44dbb0
lapic_handle_timer() at lapic_handle_timer+0xab/frame 0xfffffe008f44dbd0
Xtimerint() at Xtimerint+0xb1/frame 0xfffffe008f44dbd0
--- interrupt, rip = 0xffffffff80f695ba, rsp = 0xfffffe008f44dca0, rbp =
0xfffffe008f44dcb0 ---
uma_dbg_free() at uma_dbg_free+0x5a/frame 0xfffffe008f44dcb0
uma_zfree_arg() at uma_zfree_arg+0x95/frame 0xfffffe008f44dd00
free() at free+0xa5/frame 0xfffffe008f44dd40
pfs_modevent() at pfs_modevent+0x11/frame 0xfffffe008f44dd50
module_shutdown() at module_shutdown+0x6b/frame 0xfffffe008f44dd70
kern_reboot() at kern_reboot+0x633/frame 0xfffffe008f44ddb0
sys_reboot() at sys_reboot+0x42c/frame 0xfffffe008f44de00
amd64_syscall() at amd64_syscall+0x169/frame 0xfffffe008f44df30
fast_syscall_common() at fast_syscall_common+0xf8/frame 0xfffffe008f44df30
--- syscall (55, FreeBSD ELF64, reboot), rip = 0x28d72a, rsp = 0x8205c2ce8, rbp
= 0x8205c2dd0 ---
KDB: enter: panic
[ thread pid 1 tid 100002 ]
Stopped at kdb_enter+0x33: movq $0,0x1214762(%rip)
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