[Bug 250802] bhyve exited with status 134 when GPU PCI passthrough

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=250802

--- Comment #34 from mr.xanto at gmail.com ---
(In reply to Konstantin Belousov from comment #32)

Aplied patches: https://pastebin.com/fAEepFn6 and
https://pastebin.com/ARYK653R.

Unhandled ps2 keyboard command 0x02
Unhandled ps2 keyboard command 0x02

Thread 11 "vcpu 0" received signal SIGSEGV, Segmentation fault.
[Switching to LWP 101448 of process 54659]
write_mem (ctx=0x800299080, vcpu=0, gpa=3731705856, wval=0, size=4) at
/usr/src/usr.sbin/bhyve/mem.c:287
287             rma.val = &wval;
(gdb) backtrace
#0  write_mem (ctx=0x800299080, vcpu=0, gpa=3731705856, wval=0, size=4) at
/usr/src/usr.sbin/bhyve/mem.c:287
#1  0x000000000023d874 in passthru_write (ctx=0x800299080, vcpu=0,
pi=0x800ad4780, baridx=1, offset=<optimized out>, size=4, value=0)
    at /usr/src/usr.sbin/bhyve/pci_passthru.c:930
#2  0x00000000002368ba in pci_emul_mem_handler (ctx=0x800299080, vcpu=0,
dir=<optimized out>, addr=<optimized out>, size=4, val=0x7fffdebf6140,
arg1=0x800ad4780,
    arg2=1) at /usr/src/usr.sbin/bhyve/pci_emul.c:416
#3  0x00000000002285f7 in rw_mem_cb (ctx=0x800299080, vcpu=0, paddr=0,
mr=0x7fffdebf6000, arg=<optimized out>) at /usr/src/usr.sbin/bhyve/mem.c:267
#4  0x0000000000228494 in access_memory (ctx=0x800299080, vcpu=0,
paddr=3731705856, cb=0x2285d0 <rw_mem_cb>, arg=0x7fffdebf6130) at
/usr/src/usr.sbin/bhyve/mem.c:215
#5  0x0000000000228638 in write_mem (ctx=0x800299080, vcpu=0, gpa=3731705856,
wval=<optimized out>, size=<optimized out>) at
/usr/src/usr.sbin/bhyve/mem.c:290
#6  0x000000000023d874 in passthru_write (ctx=0x800299080, vcpu=0,
pi=0x800ad4780, baridx=1, offset=<optimized out>, size=4, value=0)
    at /usr/src/usr.sbin/bhyve/pci_passthru.c:930
#7  0x00000000002368ba in pci_emul_mem_handler (ctx=0x800299080, vcpu=0,
dir=<optimized out>, addr=<optimized out>, size=4, val=0x7fffdebf6140,
arg1=0x800ad4780,
    arg2=1) at /usr/src/usr.sbin/bhyve/pci_emul.c:416
#8  0x00000000002285f7 in rw_mem_cb (ctx=0x800299080, vcpu=0, paddr=0,
mr=0x7fffdebf6000, arg=<optimized out>) at /usr/src/usr.sbin/bhyve/mem.c:267
#9  0x0000000000228494 in access_memory (ctx=0x800299080, vcpu=0,
paddr=3731705856, cb=0x2285d0 <rw_mem_cb>, arg=0x7fffdebf6270) at
/usr/src/usr.sbin/bhyve/mem.c:215
#10 0x0000000000228638 in write_mem (ctx=0x800299080, vcpu=0, gpa=3731705856,
wval=<optimized out>, size=<optimized out>) at
/usr/src/usr.sbin/bhyve/mem.c:290
#11 0x000000000023d874 in passthru_write (ctx=0x800299080, vcpu=0,
pi=0x800ad4780, baridx=1, offset=<optimized out>, size=4, value=0)
    at /usr/src/usr.sbin/bhyve/pci_passthru.c:930
#12 0x00000000002368ba in pci_emul_mem_handler (ctx=0x800299080, vcpu=0,
dir=<optimized out>, addr=<optimized out>, size=4, val=0x7fffdebf6140,
arg1=0x800ad4780,
    arg2=1) at /usr/src/usr.sbin/bhyve/pci_emul.c:416
and many other frames.

bhyvectl --get-all https://pastebin.com/fRmHDX4b

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