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* Kernel 2.6.22.6 hangs in synchronize_rcu
@ 2008-01-18 15:15 llandre
  0 siblings, 0 replies; only message in thread
From: llandre @ 2008-01-18 15:15 UTC (permalink / raw)
  To: linux-kernel

I'm porting kernel 2.6.22.6 on custom embedded system (ARM1136).
During network subsystem initialization, kernel hangs in function 
synchronize_rcu invoked by synchronize_net. In particular
wait_for_completion(&rcu.completion);
never returns and wakeme_after_rcu is never hit.
Anybody can give me any advice about how to investigate this issue?

void synchronize_rcu(void)
{
     struct rcu_synchronize rcu;

     init_completion(&rcu.completion);
     /* Will wake me after RCU finished */
     call_rcu(&rcu.head, wakeme_after_rcu);

     /* Wait for it */
     wait_for_completion(&rcu.completion);
}


Thanks in advance,
llandre

DAVE Electronics System House - R&D Department
web:   http://www.dave-tech.it
email: r&d2@dave-tech.it

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2008-01-18 15:15 Kernel 2.6.22.6 hangs in synchronize_rcu llandre

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