linux-kernel - Re: bnxt_en NIC driver crashes IO_PAGE

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-ID: <CACKFLinsTh1OimRj80qcP0Uai5uWsV5+vEPvXF+-kuKprgzC-A@mail.gmail.com>
Date:   Tue, 8 Jun 2021 11:15:08 -0700
From:   Michael Chan <michael.chan@...adcom.com>
To:     Roman Steinhart <roman@...rnos.org>
Cc:     David Miller <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Netdev <netdev@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: bnxt_en NIC driver crashes IO_PAGE_FAULT

On Tue, Jun 8, 2021 at 10:53 AM Roman Steinhart <roman@...rnos.org> wrote:
> We received a bunch of new servers with a Supermicro H12SSL-NT
> mainboard that has an embedded Broadcom BCM57416 NIC.
>
> On all those servers we observe crashes of the NIC driver (bnxt_en) from
> time to time. We're not able to manually reproduce this issue, it just occurs at
> some point. Also our monitoring does not show any irregularities(high traffic
> flow or sth. like this).
>

These IOMMU faults are seen on AMD systems, right?  We have also seen
similar issues on some AMD systems and have worked with AMD to debug
the issues.  I'll likely have someone who's more familiar with these
AMD IOMMU issues contact you.  Thanks.

Download attachment "smime.p7s" of type "application/pkcs7-signature" (4209 bytes)