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Date:      Mon, 03 Jul 2023 12:59:03 +0000
From:      bugzilla-noreply@freebsd.org
To:        virtualization@FreeBSD.org
Subject:   [Bug 270966] PCI passthru stops working after ~30 guest reboots (ivhd, ILLEGAL CMD, IO_PAGE_FAULT)
Message-ID:  <bug-270966-27103-4B1smuWjgq@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-270966-27103@https.bugs.freebsd.org/bugzilla/>
References:  <bug-270966-27103@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D270966

--- Comment #2 from Ra=C3=BAl <raul.munoz@custos.es> ---
Tried two times with today's current (main-n263930-2176c9ab71c8) and a Free=
BSD
13.2 guest. Latest firmware, microcode ... ... same behavior, less reboots =
(20
reboots).

dmesg on host shows:

ivhd3: EVT INTR 0 Status:0xa EVT Head:0x0 Tail:0x10]
  [CMD Total 0x107] Tail:0x70, Head:0x50.
ivhd3:  [Event0: Head:0x0 Tail:0x10]
        [ILLEGAL CMD EVT]
        CMD opcode=3D 0x3 0x400b 0x14 0x7ffffffffffff003
ivhd3: Error: completion failed tail:0x100, head:0x50.
ivhd3: Dump last 1 command(s):
  [CMD0, off:0x40] opcode=3D 0x1 0x5041bb1 0x0 0xa5a5

and guest dmesg:

mlx5_core0: <mlx5_core> mem 0xc0000000-0xc00fffff at device 6.0 on pci0=20=
=20=20=20=20=20=20=20=20
mlx5: Mellanox Core driver 3.7.1 (November 2021)mlx5_core0: WARN:
wait_func:967:(pid 0): ENABLE_HCA(0x104) timeout. Will cause a leak of a
command resource=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=
=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=
=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20
mlx5_core0: ERR: mlx5_load_one:1083:(pid 0): enable hca failed=20=20=20=20=
=20=20=20=20=20=20=20=20=20=20=20=20=20=20
mlx5_core0: ERR: init_one:1646:(pid 0): mlx5_load_one failed -60=20=20=20=
=20=20=20=20=20=20=20=20=20=20=20=20=20
device_attach: mlx5_core0 attach returned 60

--=20
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