[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 #56 from mr.xanto at gmail.com ---
I've try to pass through another (more newer) GPU:
ppt0 at pci0:1:0:0:        class=0x030000 card=0x00007377 chip=0x128710de rev=0xa1
hdr=0x00
    vendor     = 'NVIDIA Corporation'
    device     = 'GK208B [GeForce GT 730]'
    class      = display
    subclass   = VGA
    bar   [10] = type Memory, range 32, base 0xfa000000, size 16777216, enabled
    bar   [14] = type Prefetchable Memory, range 64, base 0xf0000000, size
134217728, enabled
    bar   [1c] = type Prefetchable Memory, range 64, base 0xf8000000, size
33554432, enabled
    bar   [24] = type I/O Port, range 32, base 0xe000, size 128, enabled
    cap 01[60] = powerspec 3  supports D0 D3  current D0
    cap 05[68] = MSI supports 1 message, 64 bit
    cap 10[78] = PCI-Express 2 legacy endpoint max data 128(256) NS
                 max read 128
                 link x8(x8) speed 5.0(5.0) ASPM disabled(L0s/L1) ClockPM
disabled
    ecap 0002[100] = VC 1 max VC0
    ecap 0004[128] = Power Budgeting 1
    ecap 000b[600] = Vendor 1 ID 1
ppt1 at pci0:1:0:1:        class=0x040300 card=0x00007377 chip=0x0e0f10de rev=0xa1
hdr=0x00
    vendor     = 'NVIDIA Corporation'
    device     = 'GK208 HDMI/DP Audio Controller'
    class      = multimedia
    subclass   = HDA
    bar   [10] = type Memory, range 32, base 0xfb080000, size 16384, enabled
    cap 01[60] = powerspec 3  supports D0 D3  current D0
    cap 05[68] = MSI supports 1 message, 64 bit
    cap 10[78] = PCI-Express 2 endpoint max data 128(256) NS
                 max read 128
                 link x8(x8) speed 5.0(5.0) ASPM L0s/L1(L0s/L1) ClockPM
disabled

and get random traps. Now there is FreeBSD 12.2-STABLE GENERIC (with debug):
#cat /usr/src/.gituprevision
stable/12:879039312
#
One of text-dump: https://disk.yandex.ru/d/l8PdtxrFKrlzSg

Any thought what going on?

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