netdev - Re: [PATCH net-next 13/13] bnxt_en: Make PTP TX timestamp HWRM query silent

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

Message-ID: <CALs4sv3xWaOg63a3ZVPDSq8nf2E84XNNLC1L6fJe9zphuWpgYg@mail.gmail.com>
Date: Thu, 25 Jan 2024 09:05:39 +0530
From: Pavan Chebbi <pavan.chebbi@...adcom.com>
To: Breno Leitao <leitao@...ian.org>
Cc: Michael Chan <michael.chan@...adcom.com>, davem@...emloft.net, netdev@...r.kernel.org, 
	edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com, gospo@...adcom.com
Subject: Re: [PATCH net-next 13/13] bnxt_en: Make PTP TX timestamp HWRM query silent

On Wed, Jan 24, 2024 at 3:48 PM Breno Leitao <leitao@...ian.org> wrote:
>
> Hello Michael, Pavan,
>
> On Mon, Dec 11, 2023 at 04:51:22PM -0800, Michael Chan wrote:
> > From: Pavan Chebbi <pavan.chebbi@...adcom.com>
> >
> > In a busy network, especially with flow control enabled, we may
> > experience timestamp query failures fairly regularly. After a while,
> > dmesg may be flooded with timestamp query failure error messages.
> >
> > Silence the error message from the low level hwrm function that
> > sends the firmware message.  Change netdev_err() to netdev_WARN_ONCE()
> > if this FW call ever fails.
>
> This is starting to cause a warning now, which is not ideal, because
> this error-now-warning happens quite frequently in Meta's fleet.
>
> At the same time, we want to have our kernels running warninglessly.
> Moreover, the call stack displayed by the warning doesn't seem to be
> quite useful and doees not help to investigate "the problem", I _think_.
>
> Is it OK to move it back to error, something as:
>
> -       netdev_WARN_ONCE(bp->dev,
> +       netdev_err_once(bp->dev,
>                          "TS query for TX timer failed rc = %x\n", rc);

Hi Breno, I think it is OK to change.
Would you be submitting a patch for this?

>
> Thank you

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