Re: mpd client timeouts (bisected) 2.6.35-rc3

From: John Fastabend
Date: Sun Jun 13 2010 - 04:06:00 EST

David Miller wrote:
From: Markus Trippelsdorf <markus@xxxxxxxxxxxxxxx>
Date: Sat, 12 Jun 2010 12:28:02 +0200

Commit 597a264b1a9c7e36d1728f677c66c5c1f7e3b837:
»net: deliver skbs on inactive slaves to exact matches«

causes large timeouts when mpd clients try to connect to a locally
running mpd (music player demon) on my machine. This makes it impossible to control mpd.

I bisected this down to the commit mentioned above.
Reverting the commit from 2.6.35-rc3 also solves the problem.

John, find an easy and fast way to fix this or else I am
going to revert.


Looks like skbs are hitting loopback_xmit() with deliver_no_wcard set. Then in the receive path these skbs are only delivered to exact matches. Not sure why this bit is set here, I'll track this down first thing tomorrow.

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