From: Johannes Berg <johannes@sipsolutions.net>
To: Herbert Xu <herbert@gondor.apana.org.au>
Cc: David Miller <davem@davemloft.net>,
mb@bu3sch.de, netdev@vger.kernel.org,
linux-wireless@vger.kernel.org
Subject: Re: mac80211 truesize bugs
Date: Sun, 04 May 2008 13:25:55 +0200 [thread overview]
Message-ID: <1209900355.6210.64.camel@johannes.berg> (raw)
In-Reply-To: <1209894754.6210.58.camel@johannes.berg> (sfid-20080504_115215_663728_A338AE69)
[-- Attachment #1: Type: text/plain, Size: 817 bytes --]
On Sun, 2008-05-04 at 11:52 +0200, Johannes Berg wrote:
> On Sun, 2008-05-04 at 17:44 +0800, Herbert Xu wrote:
> > On Sun, May 04, 2008 at 11:14:49AM +0200, Johannes Berg wrote:
> > >
> > > I just re-did the test, and I definitely need 29 more bytes on, for
> > > example, the IPv6 autodiscovery packets and ICMP packets generated with
> > > ping(8). Some of them even need additional tailroom.
> >
> > Could you find out the code path that created the skb in the
> > kernel so we can see why there isn't enough head room?
>
> Yeah I was just considering putting a stacktrace into the skb when it's
> allocated. Haven't done, lunchtime now.
http://johannes.sipsolutions.net/patches/kernel/all/2008-05-04-11%3a23/027-skb-alloc-stackdump.patch
will report results after kernel rebuild.
johannes
[-- Attachment #2: This is a digitally signed message part --]
[-- Type: application/pgp-signature, Size: 828 bytes --]
next prev parent reply other threads:[~2008-05-04 11:26 UTC|newest]
Thread overview: 68+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-05-01 2:02 mac80211 truesize bugs Johannes Berg
[not found] ` <1209607368.7173.20.camel-YfaajirXv214zXjbi5bjpg@public.gmane.org>
2008-05-01 8:58 ` Michael Buesch
2008-05-01 9:08 ` Johannes Berg
[not found] ` <1209632886.4008.8.camel-YfaajirXv214zXjbi5bjpg@public.gmane.org>
2008-05-01 9:20 ` David Miller
2008-05-01 9:32 ` Johannes Berg
2008-05-01 9:43 ` David Miller
[not found] ` <20080501.024320.212547875.davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
2008-05-01 9:48 ` Johannes Berg
2008-05-01 9:56 ` David Miller
[not found] ` <20080501.025635.216053297.davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
2008-05-01 10:08 ` Johannes Berg
2008-05-01 10:32 ` David Miller
[not found] ` <20080501.033221.193705040.davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
2008-05-01 10:45 ` Johannes Berg
2008-05-01 10:36 ` Herbert Xu
2008-05-01 10:49 ` David Miller
2008-05-01 10:53 ` David Miller
2008-05-01 10:58 ` Johannes Berg
[not found] ` <1209639500.7067.0.camel-YfaajirXv214zXjbi5bjpg@public.gmane.org>
2008-05-01 11:03 ` Herbert Xu
2008-05-02 20:38 ` Johannes Berg
[not found] ` <1209760731.3608.17.camel-YfaajirXv214zXjbi5bjpg@public.gmane.org>
2008-05-02 23:33 ` David Miller
2008-05-03 9:37 ` Johannes Berg
2008-05-03 14:25 ` Johannes Berg
2008-05-13 3:17 ` David Miller
[not found] ` <20080512.201751.114868351.davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
2008-05-13 20:39 ` John W. Linville
2008-05-13 20:59 ` Johannes Berg
2008-05-13 21:12 ` Tomas Winkler
2008-05-13 21:37 ` Johannes Berg
[not found] ` <1210714643.4279.27.camel-YfaajirXv214zXjbi5bjpg@public.gmane.org>
2008-05-13 22:09 ` David Miller
2008-05-03 11:52 ` Johannes Berg
[not found] ` <1209815533.3987.21.camel-YfaajirXv214zXjbi5bjpg@public.gmane.org>
2008-05-04 1:03 ` David Miller
[not found] ` <20080503.180300.10562559.davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
2008-05-04 1:42 ` Johannes Berg
[not found] ` <1209865354.6210.23.camel-YfaajirXv214zXjbi5bjpg@public.gmane.org>
2008-05-04 2:02 ` Herbert Xu
[not found] ` <20080504020203.GA30514-lOAM2aK0SrRLBo1qDEOMRrpzq4S04n8Q@public.gmane.org>
2008-05-04 2:08 ` Johannes Berg
[not found] ` <1209866916.6210.39.camel-YfaajirXv214zXjbi5bjpg@public.gmane.org>
2008-05-04 2:12 ` Herbert Xu
[not found] ` <20080504021213.GA30660-lOAM2aK0SrRLBo1qDEOMRrpzq4S04n8Q@public.gmane.org>
2008-05-04 2:22 ` Johannes Berg
[not found] ` <1209867740.6210.46.camel-YfaajirXv214zXjbi5bjpg@public.gmane.org>
2008-05-04 3:16 ` Herbert Xu
[not found] ` <20080504031652.GA30993-lOAM2aK0SrRLBo1qDEOMRrpzq4S04n8Q@public.gmane.org>
2008-05-04 8:47 ` Johannes Berg
[not found] ` <1209890847.6210.51.camel-YfaajirXv214zXjbi5bjpg@public.gmane.org>
2008-05-04 9:14 ` Johannes Berg
[not found] ` <1209892489.6210.56.camel-YfaajirXv214zXjbi5bjpg@public.gmane.org>
2008-05-04 9:44 ` Herbert Xu
2008-05-04 9:52 ` Johannes Berg
2008-05-04 11:25 ` Johannes Berg [this message]
[not found] ` <1209900355.6210.64.camel-YfaajirXv214zXjbi5bjpg@public.gmane.org>
2008-05-04 12:28 ` Johannes Berg
2008-05-04 12:45 ` Herbert Xu
[not found] ` <20080504124542.GA1455-lOAM2aK0SrRLBo1qDEOMRrpzq4S04n8Q@public.gmane.org>
2008-05-04 12:48 ` Johannes Berg
2008-05-04 12:52 ` Johannes Berg
[not found] ` <1209905561.4065.23.camel-YfaajirXv214zXjbi5bjpg@public.gmane.org>
2008-05-04 12:56 ` Herbert Xu
[not found] ` <20080504125652.GA1618-lOAM2aK0SrRLBo1qDEOMRrpzq4S04n8Q@public.gmane.org>
2008-05-04 13:00 ` Johannes Berg
2008-05-04 14:06 ` Johannes Berg
[not found] ` <1209909990.3753.0.camel-YfaajirXv214zXjbi5bjpg@public.gmane.org>
2008-05-04 16:03 ` Johannes Berg
[not found] ` <1209917006.3753.2.camel-YfaajirXv214zXjbi5bjpg@public.gmane.org>
2008-05-04 17:47 ` Johannes Berg
2008-05-04 22:45 ` David Miller
[not found] ` <20080504.154540.214129591.davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
2008-05-04 22:48 ` Johannes Berg
2008-05-04 22:38 ` David Miller
2008-05-04 2:09 ` Johannes Berg
[not found] ` <20080501110341.GD7490-lOAM2aK0SrRLBo1qDEOMRrpzq4S04n8Q@public.gmane.org>
2008-05-03 12:38 ` Johannes Berg
2008-05-03 12:59 ` Herbert Xu
[not found] ` <20080503125940.GA26199-lOAM2aK0SrRLBo1qDEOMRrpzq4S04n8Q@public.gmane.org>
2008-05-03 16:03 ` Johannes Berg
[not found] ` <1209830582.3673.8.camel-YfaajirXv214zXjbi5bjpg@public.gmane.org>
2008-05-03 22:56 ` Johannes Berg
2008-05-03 23:07 ` David Miller
[not found] ` <20080503.160705.78111001.davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
2008-05-03 23:15 ` Johannes Berg
[not found] ` <20080501.034950.261408566.davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
2008-05-01 11:02 ` Herbert Xu
2008-05-01 11:38 ` Johannes Berg
[not found] ` <1209641914.3904.0.camel-YfaajirXv214zXjbi5bjpg@public.gmane.org>
2008-05-03 23:24 ` Johannes Berg
[not found] ` <1209857088.3920.4.camel-YfaajirXv214zXjbi5bjpg@public.gmane.org>
2008-05-03 23:32 ` David Miller
[not found] ` <20080503.163202.48704621.davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
2008-05-03 23:43 ` Johannes Berg
2008-05-01 11:49 ` Johannes Berg
2008-05-01 12:05 ` Johannes Berg
2008-05-01 9:32 ` Michael Buesch
[not found] ` <200805011132.24399.mb-fseUSCV1ubazQB+pC5nmwQ@public.gmane.org>
2008-05-01 9:34 ` Johannes Berg
2008-05-04 1:55 ` frame status API? (was: mac80211 truesize bugs) Johannes Berg
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=1209900355.6210.64.camel@johannes.berg \
--to=johannes@sipsolutions.net \
--cc=davem@davemloft.net \
--cc=herbert@gondor.apana.org.au \
--cc=linux-wireless@vger.kernel.org \
--cc=mb@bu3sch.de \
--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).