From: Michael Ellerman <michael@ellerman.id.au>
To: netdev@vger.kernel.org
Cc: eric.dumazet@gmail.com
Subject: Freeing alive fib_info caused by ebc0ffae5
Date: Thu, 04 Nov 2010 21:23:06 +1100 [thread overview]
Message-ID: <1288866186.30549.10.camel@concordia> (raw)
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Hi all,
I'm running Linus' latest or thereabouts (ff8b16d), and I'm seeing
"Freeing alive fib_info" messages, from free_fib_info().
Actually I only get one per boot, when network interfaces come up.
Seemingly related I am getting refcount problems when I shutdown, ie.
unregister_netdevice() sees a usage count of 1, which never decrements.
Bisect says it's ebc0ffae5 which causes the problem, or makes it appear.
fib: RCU conversion of fib_lookup()
fib_lookup() converted to be called in RCU protected context, no
reference taken and released on a contended cache line (fib_clntref)
Is this a bug in that commit, or a driver bug exposed?
cheers
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next reply other threads:[~2010-11-04 10:23 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-04 10:23 Michael Ellerman [this message]
2010-11-04 10:30 ` Freeing alive fib_info caused by ebc0ffae5 Eric Dumazet
2010-11-04 10:46 ` Eric Dumazet
2010-11-04 11:21 ` Eric Dumazet
2010-11-04 11:23 ` Michael Ellerman
2010-11-04 11:35 ` Michael Ellerman
2010-11-04 19:06 ` David Miller
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