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SubjectRe: mod_timer: list_add corruption: WARNING: CPU: 1 PID: 0 at lib/list_debug.c:33 __list_add+0xbe/0xd0()
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On Fri, 2013-07-19 at 18:38 +0200, Thomas Gleixner wrote:
> On Fri, 19 Jul 2013, Eric Dumazet wrote:
> >
> > I guess following should help
>
> Applying the empty patch does not work very well. Could you try again
> after the caffeine reached your brain, please ? :)

hmm, right ;)

diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index 69af490..4b99c9a 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -619,6 +619,9 @@ rehash:
mp->br = br;
mp->addr = *group;

+ setup_timer(&mp->timer, br_multicast_group_expired,
+ (unsigned long)mp);
+
hlist_add_head_rcu(&mp->hlist[mdb->ver], &mdb->mhash[hash]);
mdb->size++;

@@ -1126,7 +1129,6 @@ static int br_ip4_multicast_query(struct net_bridge *br,
if (!mp)
goto out;

- setup_timer(&mp->timer, br_multicast_group_expired, (unsigned long)mp);
mod_timer(&mp->timer, now + br->multicast_membership_interval);
mp->timer_armed = true;

@@ -1204,7 +1206,6 @@ static int br_ip6_multicast_query(struct net_bridge *br,
if (!mp)
goto out;

- setup_timer(&mp->timer, br_multicast_group_expired, (unsigned long)mp);
mod_timer(&mp->timer, now + br->multicast_membership_interval);
mp->timer_armed = true;




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