> On 05 Mar 2016, at 19:27, Konstantin Belousov <kostik...@gmail.com> wrote:
> 
> On Sat, Mar 05, 2016 at 05:24:26PM +0300, Dmitry Sivachenko wrote:
>>> 
>>> Again, error 4 is EINTR so you could disable both "soft" and "intr" options 
>>> for test.
>> 
>> 
>> "soft" is meaningless in such setup, because "file system calls will fail 
>> after retrycnt round trip timeout intervals" but "The default is a retry 
>> count of zero, which means to keep retrying forever".
>> 
>> If I understand "intr" correctly, it matters only when server becomes 
>> unresponsive, that is "server is not responding" message should be in my 
>> logs.  But I have no such a message.
>> 
>> 
> 
> The intr NFS mount option allows signals to interrupt NFS waits for the
> RPC responses.  This is almost certainly the reason for the EINTR error
> you get from the pager.
> 
> You should at last get the
> vm_fault: pager read error, pid ...
> messages as well.  Is this true ?


That is true, see my initial post.


>  The end result would be SIGSEGV
> delivered to the process.
> 
> OTOH, I do not quite understand why did your threads requesting page-in
> fall into the wait for a free page.  I assume that there is enough free
> pages in the system ?
> 


I have no swap configured, but it is possible that running processes eat all 
RAM (I expect them to be killed with OOM rather than stuck?)
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