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Date:      Fri, 15 Apr 2022 09:36:00 +0000
From:      bugzilla-noreply@freebsd.org
To:        net@FreeBSD.org
Subject:   [Bug 230807] if_alc(4): Driver not working for Killer Networking E2200
Message-ID:  <bug-230807-7501-8CfhNDHrP8@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-230807-7501@https.bugs.freebsd.org/bugzilla/>
References:  <bug-230807-7501@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D230807

Ross McKelvie <ross@exitzero.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |ross@exitzero.uk

--- Comment #12 from Ross McKelvie <ross@exitzero.uk> ---
I am experiencing an intermittent bug with the alc(4) driver with the Killer
E2200 Gigabit Ethernet NIC on FreeBSD-12.3-RELEASE-p5 for amd64 that may be
related.  Network connectivity drops, the CPU load increases rapidly, the s=
ame
set of messages are logged repeatedly and the system cannot be restarted or
powered down using shutdown(8). The behaviour may occur shortly after a cold
start of the system but I need to observe more instances to confirm this.

uname -mv:
FreeBSD 12.3-RELEASE-p5 GENERIC  amd64

pciconf -lv alc0:
alc0@pci0:8:0:0:        class=3D0x020000 card=3D0x05ad1028 chip=3D0xe091196=
9 rev=3D0x10
hdr=3D0x00
    vendor     =3D 'Qualcomm Atheros'
    device     =3D 'Killer E220x Gigabit Ethernet Controller'
    class      =3D network
    subclass   =3D ethernet

dmesg | grep alc (when working correctly):
alc0: <Killer E2200 Gigabit Ethernet> port 0x3000-0x307f mem
0xd2400000-0xd243ffff at device 0.0 on pci2
alc0: 11776 Tx FIFO, 12032 Rx FIFO
alc0: Using 1 MSIX message(s).
miibus0: <MII bus> on alc0
alc0: Using defaults for TSO: 65518/35/2048
alc0: Ethernet address: f0:1f:af:30:ae:eb
alc0: link state changed to DOWN
alc0: link state changed to UP

Messages in /var/log/messages from today's occurrence:
Apr 15 09:51:11 redacted-hostname kernel: alc0: <Killer E2200 Gigabit Ether=
net>
port 0x3000-0x307f mem 0xd2400000-0xd243ffff at device 0.0 on pci2=20=20=20=
=20=20=20=20=20=20=20=20=20=20
     [6/1850]
Apr 15 09:51:11 redacted-hostname kernel: alc0: 11776 Tx FIFO, 12032 Rx FIFO
Apr 15 09:51:11 redacted-hostname kernel: alc0: Using 1 MSIX message(s).
Apr 15 09:51:11 redacted-hostname kernel: miibus0: <MII bus> on alc0
Apr 15 09:51:11 redacted-hostname kernel: alc0: Using defaults for TSO:
65518/35/2048
Apr 15 09:51:11 redacted-hostname kernel: alc0: Ethernet address:
f0:1f:af:30:ae:eb
Apr 15 09:51:11 redacted-hostname kernel: alc0: link state changed to DOWN
Apr 15 09:51:11 redacted-hostname kernel: alc0: link state changed to UP
Apr 15 09:51:30 redacted-hostname kernel: alc0: phy read timeout : 1
Apr 15 09:51:30 redacted-hostname kernel: alc0: phy read timeout : 0
Apr 15 09:51:30 redacted-hostname kernel: alc0: phy read timeout : 17
Apr 15 09:51:30 redacted-hostname kernel: alc0: could not disable RxQ/TxQ
(0xffffffff)!
Apr 15 09:51:30 redacted-hostname kernel: alc0: could not disable Rx/Tx
MAC(0xffffffff)!
Apr 15 09:51:30 redacted-hostname kernel: alc0: link state changed to DOWN
Apr 15 09:51:30 redacted-hostname kernel: alc0: phy read timeout : 1
Apr 15 09:51:30 redacted-hostname kernel: alc0: phy read timeout : 0
Apr 15 09:51:30 redacted-hostname kernel: alc0: phy read timeout : 17
Apr 15 09:51:30 redacted-hostname kernel: alc0: DMA read error! -- resetting
Apr 15 09:51:30 redacted-hostname kernel: alc0: DMA write error! -- resetti=
ng
Apr 15 09:51:30 redacted-hostname kernel: alc0: TxQ reset! -- resetting
Apr 15 09:51:31 redacted-hostname kernel: alc0: could not disable RxQ/TxQ
(0xffffffff)!
Apr 15 09:51:31 redacted-hostname kernel: alc0: could not disable Rx/Tx
MAC(0xffffffff)!
Apr 15 09:51:31 redacted-hostname kernel: alc0: MAC reset timeout!
Apr 15 09:51:31 redacted-hostname kernel: alc0: master reset timeout!
Apr 15 09:51:31 redacted-hostname kernel: alc0: reset timeout(0xffffffff)!
Apr 15 09:51:31 redacted-hostname kernel: alc0: phy write timeout : 29
Apr 15 09:51:31 redacted-hostname kernel: alc0: phy write timeout : 30
Apr 15 09:51:31 redacted-hostname kernel: alc0: phy read timeout : 16
Apr 15 09:51:31 redacted-hostname kernel: alc0: phy write timeout : 16
Apr 15 09:51:31 redacted-hostname kernel: alc0: phy write timeout : 4
Apr 15 09:51:31 redacted-hostname kernel: alc0: phy write timeout : 9
Apr 15 09:51:31 redacted-hostname kernel: alc0: phy write timeout : 0
Apr 15 09:51:31 redacted-hostname kernel: alc0: phy read timeout : 0
Apr 15 09:51:31 redacted-hostname kernel: alc0: phy write timeout : 4
Apr 15 09:51:31 redacted-hostname kernel: alc0: phy write timeout : 9
Apr 15 09:51:31 redacted-hostname kernel: alc0: phy write timeout : 0
Apr 15 09:51:31 redacted-hostname kernel: alc0: phy read timeout : 1
Apr 15 09:51:31 redacted-hostname kernel: alc0: phy read timeout : 0
Apr 15 09:51:32 redacted-hostname kernel: alc0: phy read timeout : 17
Apr 15 09:51:32 redacted-hostname kernel: alc0: could not disable RxQ/TxQ
(0xffffffff)!
Apr 15 09:51:32 redacted-hostname kernel: alc0: could not disable Rx/Tx
MAC(0xffffffff)!
Apr 15 09:51:32 redacted-hostname kernel: alc0: DMA read error! -- resetting
Apr 15 09:51:32 redacted-hostname kernel: alc0: DMA write error! -- resetti=
ng
Apr 15 09:51:32 redacted-hostname kernel: alc0: TxQ reset! -- resetting
Apr 15 09:51:32 redacted-hostname kernel: alc0: could not disable RxQ/TxQ
(0xffffffff)!
Apr 15 09:51:32 redacted-hostname kernel: alc0: could not disable Rx/Tx
MAC(0xffffffff)!
Apr 15 09:51:32 redacted-hostname kernel: alc0: MAC reset timeout!
Apr 15 09:51:32 redacted-hostname kernel: alc0: master reset timeout!
Apr 15 09:51:32 redacted-hostname kernel: alc0: reset timeout(0xffffffff)!
Apr 15 09:51:32 redacted-hostname kernel: alc0: phy write timeout : 29
[...continues until removing power...]

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