netdev - Re: Fw: [Bug 215329] New: The vsock component triggers out of memory when sending small packets.

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Message-ID: <20211215164515.6cnjzcndrqsqtlkp@steredhat>
Date:   Wed, 15 Dec 2021 17:45:15 +0100
From:   Stefano Garzarella <sgarzare@...hat.com>
To:     Stephen Hemminger <stephen@...workplumber.org>
Cc:     netdev@...r.kernel.org
Subject: Re: Fw: [Bug 215329] New: The vsock component triggers out of memory
 when sending small packets.

On Wed, Dec 15, 2021 at 07:38:36AM -0800, Stephen Hemminger wrote:
>
>
>Begin forwarded message:
>
>Date: Wed, 15 Dec 2021 03:40:59 +0000
>From: bugzilla-daemon@...zilla.kernel.org
>To: stephen@...workplumber.org
>Subject: [Bug 215329] New: The vsock component triggers out of memory 
>when sending small packets.
>
>
>https://bugzilla.kernel.org/show_bug.cgi?id=215329

Thanks for CC me. I think it's related to this issue: 
https://gitlab.com/vsock/vsock/-/issues/1

virtio-vsock provides a credit mechanism, but we need to improve the 
memory tracking, maybe reusing sk_sndbuf and sk_rcvbuf.

Unfortunately, when vsock was introduce it adds is own IOCTL to set the 
buffer size, so we need to clean up a bit that part.

I can't work on it right now, maybe in the next months I can, but I can 
help for sure if someone has time.

Thanks,
Stefano