drm-legacy-kmod r361769 -CURRENT panic

root@momh167-gjp4-8570p:/var/crash # less core.txt.8
momh167-gjp4-8570p dumped core - see /var/crash/vmcore.8

Mon Jul  6 16:50:27 BST 2020

FreeBSD momh167-gjp4-8570p 13.0-CURRENT FreeBSD 13.0-CURRENT #58 r361769: Thu Jun  4 09:45:38 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   = 0x1134
fault code              = supervisor read data, page not present
instruction pointer     = 0x20:0xffffffff8305ae6c
stack pointer           = 0x28:0xfffffe00edf99350
frame pointer           = 0x28:0xfffffe00edf99380
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         = 18190 (kscreenlo:rcs0)
trap number             = 12
panic: page fault
cpuid = 0
time = 1594040942
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe00edf99010
vpanic() at vpanic+0x182/frame 0xfffffe00edf99060
panic() at panic+0x43/frame 0xfffffe00edf990c0
trap_fatal() at trap_fatal+0x387/frame 0xfffffe00edf99120
trap_pfault() at trap_pfault+0x4f/frame 0xfffffe00edf99170
trap() at trap+0x271/frame 0xfffffe00edf99280
calltrap() at calltrap+0x8/frame 0xfffffe00edf99280
--- trap 0xc, rip = 0xffffffff8305ae6c, rsp = 0xfffffe00edf99350, rbp = 0xfffffe00edf99380 ---
radeon_sync_resv() at radeon_sync_resv+0x4c/frame 0xfffffe00edf99380
radeon_cs_ioctl() at radeon_cs_ioctl+0x9f7/frame 0xfffffe00edf99800
drm_ioctl_kernel() at drm_ioctl_kernel+0x104/frame 0xfffffe00edf99840
drm_ioctl() at drm_ioctl+0x289/frame 0xfffffe00edf99930
linux_file_ioctl() at linux_file_ioctl+0x2e8/frame 0xfffffe00edf99990
kern_ioctl() at kern_ioctl+0x25e/frame 0xfffffe00edf99a00
sys_ioctl() at sys_ioctl+0xfa/frame 0xfffffe00edf99ad0
amd64_syscall() at amd64_syscall+0x119/frame 0xfffffe00edf99bf0
fast_syscall_common() at fast_syscall_common+0x101/frame 0xfffffe00edf99bf0
--- syscall (54, FreeBSD ELF64, sys_ioctl), rip = 0x80293e50a, rsp = 0x7fffdfbfbed8, rbp = 0x7fffdfbfbf00 ---
KDB: enter: panic
Uptime: 5h39m3s
Dumping 1812 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  0xffffffff80bd7e0b in kern_reboot (howto=260)
    at /usr/src/sys/kern/kern_shutdown.c:481
#3  0xffffffff80bd828a in vpanic (fmt=<optimized out>, ap=<optimized out>)
    at /usr/src/sys/kern/kern_shutdown.c:913
#4  0xffffffff80bd80a3 in panic (fmt=<unavailable>)
    at /usr/src/sys/kern/kern_shutdown.c:839
#5  0xffffffff8106b3d7 in trap_fatal (frame=0xfffffe00edf99290, eva=4404)
    at /usr/src/sys/amd64/amd64/trap.c:919
#6  0xffffffff8106b42f in trap_pfault (frame=0xfffffe00edf99290,
    usermode=<optimized out>, signo=<optimized out>, ucode=<optimized out>)
    at /usr/src/sys/amd64/amd64/trap.c:736
#7  0xffffffff8106aa91 in trap (frame=0xfffffe00edf99290)
    at /usr/src/sys/amd64/amd64/trap.c:400
#8  <signal handler called>
#9  0xffffffff8305ae6c in dma_fence_wait_timeout (fence=0xfffff80121f1ea00,
    intr=<error reading variable: Cannot access memory at address 0x1>,
    timeout=<error reading variable: Cannot access memory at address 0x7fffffff>)
    at /usr/local/sys/modules/drm-current-kmod/linuxkpi/gplv2/include/linux/dma-fence.h:254
#10 dma_fence_wait (fence=0xfffff80121f1ea00,
    intr=<error reading variable: Cannot access memory at address 0x1>)
    at /usr/local/sys/modules/drm-current-kmod/linuxkpi/gplv2/include/linux/dma-fence.h:263
#11 radeon_sync_resv (rdev=0xfffffe00b7e3c000, sync=0xfffffe00edf99660,
    resv=0xfffff802041a0a50, shared=true)
    at /usr/local/sys/modules/drm-current-kmod/drivers/gpu/drm/radeon/radeon_sync.c:106
#12 0xffffffff830354f7 in radeon_cs_sync_rings (p=<optimized out>)
    at /usr/local/sys/modules/drm-current-kmod/drivers/gpu/drm/radeon/radeon_cs.c:255
#13 radeon_cs_ib_chunk (rdev=0xfffffe00b7e3c000, parser=<optimized out>)
    at /usr/local/sys/modules/drm-current-kmod/drivers/gpu/drm/radeon/radeon_cs.c:471
#14 radeon_cs_ioctl (dev=<optimized out>, data=<optimized out>,
    filp=<optimized out>)
    at /usr/local/sys/modules/drm-current-kmod/drivers/gpu/drm/radeon/radeon_cs.c:703
#15 0xffffffff83133c94 in drm_ioctl_kernel (linux_file=<optimized out>,
    func=0xffffffff83034b00 <radeon_cs_ioctl>, kdata=0xfffffe00edf99880,
    flags=33)
    at /usr/local/sys/modules/drm-current-kmod/drivers/gpu/drm/drm_ioctl.c:760
#16 0xffffffff83133f59 in drm_ioctl (filp=0xfffff80121f1ea00,
    cmd=<optimized out>, arg=<optimized out>)
    at /usr/local/sys/modules/drm-current-kmod/drivers/gpu/drm/drm_ioctl.c:856
#17 0xffffffff83176e48 in linux_file_ioctl_sub (fp=<optimized out>,
    filp=0xfffff8004256b200, fop=<optimized out>, cmd=<optimized out>,
    data=<optimized out>, td=<optimized out>)
    at /usr/src/sys/compat/linuxkpi/common/src/linux_compat.c:963
#18 linux_file_ioctl (fp=<optimized out>, cmd=<optimized out>,
    data=<optimized out>, cred=<optimized out>, td=0xfffffe00c8379100)
    at /usr/src/sys/compat/linuxkpi/common/src/linux_compat.c:1584
#19 0xffffffff80c459ee in fo_ioctl (fp=0xfffff80210290630,
    com=<optimized out>, data=0x7fffffff, active_cred=0x1114,
    td=0xfffffe00c8379100) at /usr/src/sys/sys/file.h:338
#20 kern_ioctl (td=0x2, fd=12, com=<optimized out>,
    data=0x7fffffff <error: Cannot access memory at address 0x7fffffff>)
    at /usr/src/sys/kern/sys_generic.c:802
#21 0xffffffff80c456ea in sys_ioctl (td=0xfffffe00c8379100,
    uap=0xfffffe00c83794d8) at /usr/src/sys/kern/sys_generic.c:710
#22 0xffffffff8106bcc9 in syscallenter (td=0xfffffe00c8379100)
    at /usr/src/sys/amd64/amd64/../../kern/subr_syscall.c:162
#23 amd64_syscall (td=0xfffffe00c8379100, traced=0)
    at /usr/src/sys/amd64/amd64/trap.c:1161
#24 <signal handler called>
#25 0x000000080293e50a in ?? ()
Backtrace stopped: Cannot access memory at address 0x7fffdfbfbed8
(kgdb)

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