[Bug 280427] Kernel panic after upgrading to FreeBSD 14

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=280427

--- Comment #4 from Kirill <kirill@varnakov.com> ---
Same server, but fresh dump:

Fatal trap 12: page fault while in kernel mode
cpuid = 10; apic id = 10
fault virtual address   = 0x0
fault code              = supervisor read data, page not present
instruction pointer     = 0x20:0xffffffff80ff0066
stack pointer           = 0x28:0xfffffe00fd3e9540
frame pointer           = 0x28:0xfffffe00fd3e9590
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         = 17 (dom1)
rdi: 0000000000000000 rsi: 0000000000000000 rdx: 0000000000000001
rcx: 0000000000000002  r8: 0000000000000f10  r9: fffff80000000000
rax: 0000000000000000 rbx: fffffe0011734f20 rbp: fffffe00fd3e9590
r10: fffff80009b49740 r11: fffff80000000000 r12: 0000000000000042
r13: fffff802876023b0 r14: fffff803e06e0508 r15: fffff80287602398
trap number             = 12
panic: page fault
cpuid = 10
time = 1722494601
KDB: stack backtrace:
#0 0xffffffff80b7fbfd at kdb_backtrace+0x5d
#1 0xffffffff80b32961 at vpanic+0x131
#2 0xffffffff80b32823 at panic+0x43
#3 0xffffffff80fff91b at trap_fatal+0x40b
#4 0xffffffff80fff966 at trap_pfault+0x46
#5 0xffffffff80fd6a48 at calltrap+0x8
#6 0xffffffff80ec3a94 at vm_page_test_dirty+0x14
#7 0xffffffff80ec7718 at vm_pageout_scan_inactive+0x498
#8 0xffffffff80ec58c4 at vm_pageout_worker+0x574
#9 0xffffffff80aecd1f at fork_exit+0x7f
#10 0xffffffff80fd7aae at fork_trampoline+0xe
Uptime: 22d18h25m39s
Dumping 3549 out of 16250 MB:..1%..11%..21%..31%..41%..51%..61%..71%..81%..91%

Reading symbols from /boot/kernel/accf_dns.ko...
Reading symbols from /usr/lib/debug//boot/kernel/accf_dns.ko.debug...
Reading symbols from /boot/kernel/accf_data.ko...
Reading symbols from /usr/lib/debug//boot/kernel/accf_data.ko.debug...
Reading symbols from /boot/kernel/zfs.ko...
Reading symbols from /usr/lib/debug//boot/kernel/zfs.ko.debug...
Reading symbols from /boot/kernel/accf_http.ko...
Reading symbols from /usr/lib/debug//boot/kernel/accf_http.ko.debug...
Reading symbols from /boot/kernel/acpi_wmi.ko...
Reading symbols from /usr/lib/debug//boot/kernel/acpi_wmi.ko.debug...
Reading symbols from /boot/kernel/ipfw.ko...
Reading symbols from /usr/lib/debug//boot/kernel/ipfw.ko.debug...
__curthread () at /usr/src/sys/amd64/include/pcpu_aux.h:57
warning: Source file is more recent than executable.
57              __asm("movq %%gs:%P1,%0" : "=r" (td) : "n" (offsetof(struct
pcpu,
(kgdb) list *0xffffffff80ff0066
0xffffffff80ff0066 is in pmap_page_test_mappings
(/usr/src/sys/amd64/amd64/pmap.c:8734).
warning: Source file is more recent than executable.
8729                            mask |= PG_RW | PG_M;
8730                    }
8731                    if (accessed) {
8732                            PG_A = pmap_accessed_bit(pmap);
8733                            PG_V = pmap_valid_bit(pmap);
8734                            mask |= PG_V | PG_A;
8735                    }
8736                    rv = (*pte & mask) == mask;
8737                    PMAP_UNLOCK(pmap);
8738                    if (rv)
(kgdb) bt
#0  __curthread () at /usr/src/sys/amd64/include/pcpu_aux.h:57
#1  doadump (textdump=<optimized out>) at /usr/src/sys/kern/kern_shutdown.c:405
#2  0xffffffff80b324f7 in kern_reboot (howto=260) at
/usr/src/sys/kern/kern_shutdown.c:523
#3  0xffffffff80b329ce in vpanic (fmt=0xffffffff8115edb8 "%s",
ap=ap@entry=0xfffffe00fd3e93a0) at /usr/src/sys/kern/kern_shutdown.c:967
#4  0xffffffff80b32823 in panic (fmt=<unavailable>) at
/usr/src/sys/kern/kern_shutdown.c:891
#5  0xffffffff80fff91b in trap_fatal (frame=0xfffffe00fd3e9480, eva=0) at
/usr/src/sys/amd64/amd64/trap.c:952
#6  0xffffffff80fff966 in trap_pfault (frame=<unavailable>, usermode=false,
signo=<optimized out>, ucode=<optimized out>) at
/usr/src/sys/amd64/amd64/trap.c:760
#7  <signal handler called>
#8  0xffffffff80ff0066 in pmap_page_test_mappings (m=0xfffffe0011734f20,
accessed=accessed@entry=0, modified=modified@entry=1) at
/usr/src/sys/amd64/amd64/pmap.c:8734
#9  0xffffffff80fefda8 in pmap_is_modified (m=0x0) at
/usr/src/sys/amd64/amd64/pmap.c:8798
#10 0xffffffff80ec3a94 in vm_page_test_dirty (m=0x0,
m@entry=0xfffffe0011734f20) at /usr/src/sys/vm/vm_page.c:5516
#11 0xffffffff80ec7718 in vm_pageout_scan_inactive
(vmd=vmd@entry=0xffffffff81c04300 <vm_dom+1664>, page_shortage=250) at
/usr/src/sys/vm/vm_pageout.c:1583
#12 0xffffffff80ec58c4 in vm_pageout_inactive_dispatch (vmd=0xffffffff81c04300
<vm_dom+1664>, shortage=818) at /usr/src/sys/vm/vm_pageout.c:1673
#13 vm_pageout_inactive (vmd=0xffffffff81c04300 <vm_dom+1664>,
shortage=<optimized out>, addl_shortage=<optimized out>) at
/usr/src/sys/vm/vm_pageout.c:1722
#14 vm_pageout_worker (arg=arg@entry=0x1) at /usr/src/sys/vm/vm_pageout.c:2162
#15 0xffffffff80aecd1f in fork_exit (callout=0xffffffff80ec5350
<vm_pageout_worker>, arg=0x1, frame=0xfffffe00fd3e9f40) at
/usr/src/sys/kern/kern_fork.c:1164
#16 <signal handler called>
#17 0xd4368bd7293a5080 in ?? ()
Backtrace stopped: Cannot access memory at address 0x11a719707dac43cc

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