Mailinglist Archive: opensuse-bugs (5057 mails)

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https://bugzilla.novell.com/show_bug.cgi?id=754186

https://bugzilla.novell.com/show_bug.cgi?id=754186#c7


--- Comment #7 from Mike Galbraith <mgalbraith@xxxxxxxx> 2012-03-28 15:37:40 
UTC ---
(I haven't tweaked the rt debug patch yet, rummaging)

Unless you changed systemd setup, this shouldn't be the task got moved into an
cgroup with no rt budget thing.  The problem isn't reproducible here, and I
played with cgroup movement while loading/unloading my wireless driver.  Looks
to me like systemd is just stuck due to rcu trouble.

Yours wireless driver seems to trigger the problem every time.  Looking at the
driver, I'm not seeing why that would be, but I bet if you boot with that
module disabled, the problem goes away.

While looking around, I noticed an lkml mail pointing to a critical rcu fix in
the network code.  Not saying that's the root, but it's network, and rcu and
here we do have network + rcu...

94f826b8 net: fix a potential rcu_read_lock() imbalance in rt6_fill_node()

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