From: Shan Wei <shanwei88@gmail.com>
To: Eric Dumazet <eric.dumazet@gmail.com>
Cc: NetDev <netdev@vger.kernel.org>
Subject: Re: [BUG report] net.core.rmem_default is larger than net.core.rmem_max
Date: Mon, 11 Jun 2012 10:06:03 +0800 [thread overview]
Message-ID: <4FD5528B.7020301@gmail.com> (raw)
In-Reply-To: <4F9A676A.8070406@gmail.com>
Shan Wei said, at 2012/4/27 17:31:
>
> It's unconventional that "default" value is greater than "max". :-(
>
> net.core.rmem_max = 131071
> net.core.rmem_default = 229376
ping......
I have no idea to fix this.
Maybe add rmem_max value to be greater than rmem_default?
Eric, can you look into this?
>
> net.core.wmem_max = 131071
> net.core.wmem_default = 229376
>
>
> And bisect the code to find the following commit caused this phenomenon.
> This patch increase SK_WMEM_MAX and SK_RMEM_MAX which are used to
> initialize them.
> But rmem_max and wmem_max value are still be covered according the RAM size
> in sk_init().
>
> 87fb4b7b533073eeeaed0b6bf7c2328995f6c075 is the first bad commit
> commit 87fb4b7b533073eeeaed0b6bf7c2328995f6c075
> Author: Eric Dumazet <eric.dumazet@gmail.com>
> Date: Thu Oct 13 07:28:54 2011 +0000
>
> net: more accurate skb truesize
>
>
prev parent reply other threads:[~2012-06-11 2:04 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-27 9:31 [BUG report] net.core.rmem_default is larger than net.core.rmem_max Shan Wei
2012-06-11 2:06 ` Shan Wei [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4FD5528B.7020301@gmail.com \
--to=shanwei88@gmail.com \
--cc=eric.dumazet@gmail.com \
--cc=netdev@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).