Re: mac80211 truesize bugs
From: Johannes Berg <johannes@sipsolutions.net>
Date: 2008-05-04 11:26:09
Also in:
linux-wireless
On Sun, 2008-05-04 at 11:52 +0200, Johannes Berg wrote:
On Sun, 2008-05-04 at 17:44 +0800, Herbert Xu wrote:quoted
On Sun, May 04, 2008 at 11:14:49AM +0200, Johannes Berg wrote:quoted
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
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