Thread (3 messages) 3 messages, 3 authors, 2012-10-04

Re: [PATCH] team: set qdisc_tx_busylock to avoid LOCKDEP splat

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From: David Miller <davem@davemloft.net>
Date: 2012-10-04 19:54:38

From: Eric Dumazet <redacted>
Date: Thu, 04 Oct 2012 11:18:39 +0200
From: Eric Dumazet <redacted>

If a qdisc is installed on a team device, its possible to get
a lockdep splat under stress, because nested dev_queue_xmit() can
lock busylock a second time (on a different device, so its a false
positive)

Avoid this problem using a distinct lock_class_key for team
devices.

Signed-off-by: Eric Dumazet <redacted>
Cc: Jiri Pirko <redacted>
Applied.
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