graid3 panic from Jenkins

From: Lexi Winter <ivy_at_freebsd.org>
Date: Sun, 26 Oct 2025 04:21:37 UTC
hello,

Jenkins sent me the test failure below in graid3 on stable/15, which i
haven't seen before, in case anyone is interested.  full test log:
https://ci.freebsd.org/job/FreeBSD-stable-15-amd64-test/122/consoleText

> sys/geom/class/raid3/1_test:main  ->  GEOM_RAID3: Force device graid3.DukdHR start due to timeout.
> GEOM_RAID3: Device graid3.DukdHR destroyed.
> 
> 
> Fatal trap 12: page fault while in kernel mode
> cpuid = 1; apic id = 01
> fault virtual address	= 0x488
> fault code		= supervisor read data, page not present
> instruction pointer	= 0x20:0xffffffff80b7da87
> stack pointer	        = 0x28:0xfffffe008aee8c40
> frame pointer	        = 0x28:0xfffffe008aee8ce0
> 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		= 13 (g_event)
> rdi: 0000000000000000 rsi: 0000000000000006 rdx: 0000000000000000
> rcx: 0000000000000000  r8: 0000000000000067  r9: fffffe008aee9000
> rax: 0000000000000003 rbx: fffff8000354b438 rbp: fffffe008aee8ce0
> r10: 0000000000000001 r11: 000000000000044c r12: fffff80004a21780
> r13: 0000000000000000 r14: 0000000000000000 r15: 0000000000000000
> trap number		= 12
> panic: page fault
> cpuid = 1
> time = 1761451253
> KDB: stack backtrace:
> #0 0xffffffff80bc031d at kdb_backtrace+0x5d
> #1 0xffffffff80b736a6 at vpanic+0x136
> #2 0xffffffff80b73563 at panic+0x43
> #3 0xffffffff8107bf69 at trap_pfault+0x3c9
> #4 0xffffffff81051e88 at calltrap+0x8
> #5 0xffffffff82b4a15f at g_raid3_event_dispatch+0x39f
> #6 0xffffffff82b4b2a9 at g_raid3_add_disk+0x5c9
> #7 0xffffffff82b499ca at g_raid3_taste+0x9ca
> #8 0xffffffff80aae46a at g_new_provider_event+0x8a
> #9 0xffffffff80aa969e at g_run_events+0x11e
> #10 0xffffffff80b299fb at fork_exit+0x7b
> #11 0xffffffff81052eae at fork_trampoline+0xe
> Uptime: 29m24s
> Automatic reboot in 15 seconds - press a key on the console to abort