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From: Roland Dreier <rdreier@cisco.com>
To: David Miller <davem@davemloft.net>
Cc: herbert@gondor.apana.org.au, mchan@broadcom.com,
	jgarzik@pobox.com, netdev@vger.kernel.org
Subject: Re: [NET]: Add netif_tx_lock
Date: Mon, 05 Jun 2006 21:44:01 -0700	[thread overview]
Message-ID: <adapshmnbam.fsf@cisco.com> (raw)
In-Reply-To: <20060605.213250.85688925.davem@davemloft.net> (David Miller's message of "Mon, 05 Jun 2006 21:32:50 -0700 (PDT)")

 > IPOIB is going to BUG() with this change.  Because now, in their
 > multicast code, you're going to local_bh_disable() via
 > netif_tx_unlock() with hw IRQs disabled which is illegal.
 > 
 > It shows a bug here in the locking of the IPOIB driver.

Sorry, I haven't followed this thread closely.  Can you expand on what
the bug in ipoib's multicast locking is?

Thanks,
  Roland

  reply	other threads:[~2006-06-06  4:44 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-05-31  4:51 netif_tx_disable and lockless TX Michael Chan
2006-05-31  4:58 ` Herbert Xu
2006-05-31  5:11   ` David Miller
2006-05-31  5:14     ` Herbert Xu
2006-05-31  6:26       ` David Miller
2006-05-31  6:31         ` Herbert Xu
2006-05-31  7:08           ` David Miller
2006-05-31 12:06             ` Herbert Xu
2006-05-31 12:36               ` jamal
2006-05-31 12:40                 ` Herbert Xu
2006-05-31 13:03                   ` jamal
2006-05-31 17:52                 ` Robert Olsson
2006-06-02  3:25                   ` Stephen Hemminger
2006-06-02 10:46                     ` Robert Olsson
2006-06-14 12:52                   ` jamal
2006-05-31 21:20     ` Michael Chan
2006-06-01  0:09       ` David Miller
2006-06-01  0:25         ` Herbert Xu
2006-05-31 23:01           ` Michael Chan
2006-06-01  0:42             ` Herbert Xu
2006-06-01  0:27               ` Michael Chan
2006-06-01  2:27                 ` Herbert Xu
2006-06-01 11:15           ` [NET]: Add netif_tx_lock Herbert Xu
2006-06-06  4:32             ` David Miller
2006-06-06  4:44               ` Roland Dreier [this message]
2006-06-06  4:50                 ` Roland Dreier
2006-06-06  4:57                   ` Roland Dreier
2006-06-06  5:10                     ` David Miller
2006-06-06  6:01                       ` Roland Dreier
2006-06-06  4:58                   ` David Miller
2006-06-06  5:04                     ` Roland Dreier
2006-06-06  5:09                       ` David Miller
2006-06-06  4:57                 ` David Miller
2006-06-06 10:22               ` Herbert Xu
2006-06-09  5:48             ` Herbert Xu
2006-06-09 19:21               ` David Miller

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