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root@momh167-gjp4-8570p:/var/crash # less core.txt.6
momh167-gjp4-8570p dumped core - see /var/crash/vmcore.6

Sat Jul  4 07:06:01 BST 2020

FreeBSD momh167-gjp4-8570p 13.0-CURRENT FreeBSD 13.0-CURRENT #59 r362897: Fri Jul  3 08:17:28 BST 2020     root@momh167-gjp4-8570p:/usr/obj/usr/src/amd64.amd64/sys/GENERIC-NODEBUG  amd64

panic: page fault

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Reading symbols from /boot/kernel/kernel...
Reading symbols from /usr/lib/debug//boot/kernel/kernel.debug...

Unread portion of the kernel message buffer:


Fatal trap 12: page fault while in kernel mode
cpuid = 0; apic id = 00
fault virtual address   = 0x8
fault code              = supervisor read data, page not present
instruction pointer     = 0x20:0xffffffff8305ab17
stack pointer           = 0x28:0xfffffe00b7e9f9f0
frame pointer           = 0x28:0xfffffe00b7e9fa00
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         = 12 (irq40: vgapci0)
trap number             = 12
panic: page fault
cpuid = 0
time = 1593842336
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe00b7e9f6b0
vpanic() at vpanic+0x182/frame 0xfffffe00b7e9f700
panic() at panic+0x43/frame 0xfffffe00b7e9f760
trap_fatal() at trap_fatal+0x387/frame 0xfffffe00b7e9f7c0
trap_pfault() at trap_pfault+0x4f/frame 0xfffffe00b7e9f810
trap() at trap+0x271/frame 0xfffffe00b7e9f920
calltrap() at calltrap+0x8/frame 0xfffffe00b7e9f920
--- trap 0xc, rip = 0xffffffff8305ab17, rsp = 0xfffffe00b7e9f9f0, rbp = 0xfffffe00b7e9fa00 ---
radeon_irq_kms_sw_irq_put() at radeon_irq_kms_sw_irq_put+0x7/frame 0xfffffe00b7e9fa00
radeon_fence_check_signaled() at radeon_fence_check_signaled+0xc4/frame 0xfffffe00b7e9fa30
linux_wake_up() at linux_wake_up+0xa0/frame 0xfffffe00b7e9fa80
evergreen_irq_process() at evergreen_irq_process+0x581/frame 0xfffffe00b7e9fb20
ithread_loop() at ithread_loop+0x24d/frame 0xfffffe00b7e9fbb0
fork_exit() at fork_exit+0x7e/frame 0xfffffe00b7e9fbf0
fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe00b7e9fbf0
--- trap 0, rip = 0, rsp = 0, rbp = 0 ---
KDB: enter: panic
Uptime: 1h36m33s
Dumping 2942 out of 16275 MB:..1%..11%..21%..31%..41%..51%..61%..71%..81%..91%

__curthread () at /usr/src/sys/amd64/include/pcpu_aux.h:55
55              __asm("movq %%gs:%P1,%0" : "=r" (td) : "n" (offsetof(struct pcpu,
(kgdb) #0  __curthread () at /usr/src/sys/amd64/include/pcpu_aux.h:55
#1  doadump (textdump=1) at /usr/src/sys/kern/kern_shutdown.c:394
#2  0xffffffff80bd9e2b in kern_reboot (howto=260)
    at /usr/src/sys/kern/kern_shutdown.c:481
#3  0xffffffff80bda2aa in vpanic (fmt=<optimized out>, ap=<optimized out>)
    at /usr/src/sys/kern/kern_shutdown.c:913
#4  0xffffffff80bda0c3 in panic (fmt=<unavailable>)
    at /usr/src/sys/kern/kern_shutdown.c:839
#5  0xffffffff8106e797 in trap_fatal (frame=0xfffffe00b7e9f930, eva=8)
    at /usr/src/sys/amd64/amd64/trap.c:919
#6  0xffffffff8106e7ef in trap_pfault (frame=0xfffffe00b7e9f930, 
    usermode=<optimized out>, signo=<optimized out>, ucode=<optimized out>)
    at /usr/src/sys/amd64/amd64/trap.c:736
#7  0xffffffff8106de51 in trap (frame=0xfffffe00b7e9f930)
    at /usr/src/sys/amd64/amd64/trap.c:400
#8  <signal handler called>
#9  radeon_irq_kms_sw_irq_put (rdev=0x0, ring=0)
    at /usr/local/sys/modules/drm-current-kmod/drivers/gpu/drm/radeon/radeon_irq_kms.c:399
#10 0xffffffff83054d34 in radeon_fence_check_signaled (wait=<optimized out>, 
    mode=<optimized out>, flags=<optimized out>, key=<optimized out>)
    at /usr/local/sys/modules/drm-current-kmod/drivers/gpu/drm/radeon/radeon_fence.c:181
#11 0xffffffff83192200 in linux_wake_up (wqh=0xfffffe00b8ffc9f8, state=3, 
    nr=0, locked=false)
    at /usr/src/sys/compat/linuxkpi/common/src/linux_schedule.c:213
#12 0xffffffff82ff0311 in evergreen_irq_process (rdev=<optimized out>)
    at /usr/local/sys/modules/drm-current-kmod/drivers/gpu/drm/radeon/evergreen.c:4878
#13 0xffffffff80b9bbdd in intr_event_execute_handlers (p=<optimized out>, 
    ie=0xfffff801cf8e0300) at /usr/src/sys/kern/kern_intr.c:1153
#14 ithread_execute_handlers (p=<optimized out>, ie=0xfffff801cf8e0300)
    at /usr/src/sys/kern/kern_intr.c:1166
#15 ithread_loop (arg=0xfffff801cf884a00)
    at /usr/src/sys/kern/kern_intr.c:1254
#16 0xffffffff80b986ce in fork_exit (
    callout=0xffffffff80b9b990 <ithread_loop>, arg=0xfffff801cf884a00, 
    frame=0xfffffe00b7e9fc00) at /usr/src/sys/kern/kern_fork.c:1052
#17 <signal handler called>
(kgdb) 

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