Re: [PATCHv2] tcp: fix crash in tcp_xmit_retransmit_queue

David Miller
2010-07-19T19:54:47Z

From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Mon, 19 Jul 2010 19:39:08 +0200

> Do you know in what exact circumstance the bug triggers ?
>
> It's hard to believe thousand of machines on the Internet never hit
> it :(
>
> Maybe another problem in congestion control ?

This is something to investigate, but the conditions under which
tcp_fastretrans_alert() (the main invoker of tcp_xmit_retransmit_queue())
does it's thing are complicated enough that I'm going to add this fix
for the time being and push it out to stable too.

Thanks everyone.