From: Patrick McHardy <kaber@trash.net>
To: Matt Mackall <mpm@selenic.com>
Cc: Jeff Garzik <jgarzik@pobox.com>,
netdev@oss.sgi.com, Jeff Moyer <jmoyer@redhat.com>
Subject: Re: [PATCH 1/7] netpoll: shorten carrier detect timeout
Date: Fri, 11 Mar 2005 05:53:16 +0100 [thread overview]
Message-ID: <4231243C.1040001@trash.net> (raw)
In-Reply-To: <20050311044246.GT3120@waste.org>
Matt Mackall wrote:
> On Fri, Mar 11, 2005 at 05:35:05AM +0100, Patrick McHardy wrote:
>
>>>So I'm going to change it from "flaky" to "untrustworthy" and add a
>>>comment.
>>
>>Why don't you trust an instaneously available carrier? Any
>>reason to assume there will be false positives?
>
>
> Because I had reports of people losing all their boot messages until
> this logic was added (about a year ago now?). I don't remember which
> NICs were implicated, but some apparently report carrier is always
> available.
If this problem is not common, I think it would be better to make
this behaviour dependant on a boot parameter instead of forcing
everyone to wait for 4s. Additionally you could have a blacklist
of flaky NICs.
Regards
Patrick
prev parent reply other threads:[~2005-03-11 4:53 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-03-03 20:46 [PATCH 0/7] netpoll: recursion fixes, queueing, and cleanups Matt Mackall
2005-03-03 20:46 ` [PATCH 1/7] netpoll: shorten carrier detect timeout Matt Mackall
2005-03-03 20:46 ` [PATCH 2/7] netpoll: filter inlines Matt Mackall
2005-03-03 20:46 ` [PATCH 3/7] netpoll: add netpoll point to net_device Matt Mackall
2005-03-03 20:46 ` [PATCH 4/7] netpoll: fix ->poll() locking Matt Mackall
2005-03-03 20:46 ` [PATCH 5/7] netpoll: add optional dropping and queueing support Matt Mackall
2005-03-03 20:46 ` [PATCH 6/7] netpoll: handle xmit_lock recursion similarly Matt Mackall
2005-03-03 20:46 ` [PATCH 7/7] netpoll: avoid kfree_skb on packets with destructo Matt Mackall
2005-03-03 21:00 ` David S. Miller
2005-03-03 21:17 ` Jeff Garzik
2005-03-03 21:29 ` David S. Miller
2005-03-03 21:33 ` Jeff Garzik
2005-03-03 21:39 ` Matt Mackall
2005-03-03 21:41 ` David S. Miller
2005-03-03 21:32 ` Matt Mackall
2005-03-23 2:35 ` David S. Miller
2005-04-22 22:24 ` [PATCH 4/7] netpoll: fix ->poll() locking Jeff Moyer
2005-04-22 22:52 ` David S. Miller
2005-04-22 23:02 ` Jeff Moyer
2005-04-22 22:59 ` David S. Miller
2005-04-23 2:14 ` Matt Mackall
2005-04-23 5:12 ` David S. Miller
2005-03-06 0:09 ` [PATCH 1/7] netpoll: shorten carrier detect timeout Patrick McHardy
2005-03-06 0:20 ` Matt Mackall
2005-03-06 1:01 ` Patrick McHardy
2005-03-10 23:01 ` Matt Mackall
2005-03-11 4:35 ` Patrick McHardy
2005-03-11 4:42 ` Matt Mackall
2005-03-11 4:53 ` Patrick McHardy [this message]
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