Dipankar Sarma a écrit :
> On Mon, Oct 17, 2005 at 11:10:04AM +0200, Eric Dumazet wrote:
>>
>>Fixing the 'file count' wont fix the real problem : Batch freeing is good 
>>but should be limited so that not more than *billions* of file struct are 
>>queued for deletion.
> 
> 
> Agreed. It is not designed to work that way, so there must be
> a bug somewhere and I am trying to track it down. It could very well
> be that at maxbatch=10 we are just queueing at a rate far too high
> compared to processing.
> 

I can freeze my test machine with a program that 'only' use dentries, no files.

No message, no panic, but machine becomes totally unresponsive after few seconds.

Just greping for call_rcu in kernel sources gave me another call_rcu() use 
from syscalls. And yes 2.6.13 has the same problem.

Here is the killer on by HT Xeon machine (2GB ram)

Eric