[Arm-dev] Weird issue with NFSv4

[Stephan Guilloux]

Le 19/03/2019 à 11:57, Pablo Sebastián Greco a écrit :
>
> El 19/3/19 a las 07:47, Stephan Guilloux escribió:
>> Hi there.
>>
>> Strange issue with NFSv4 this morning.
>> RPI3b+ with kernel 103 and fresh yum update, set up as NFSv4 client.
>>
>> Trying to copy a whole folder with a few GB (many .rpm & .tgz and a 
>> few .img), from NFS mounted source to local filesystem.
>>     (cd /shared.nfs ; tar c) | (cd /local ; tar x)
>>
>> After a while ...
>> - PING to the RPI works.
>> - SSH sessions got frozen and login is impossible, even with USB 
>> keyboard on the RPI.
>> - Sometimes, I do see some kernel backtrace on the VGA, but not always.
>> As I have to switch off the RPI, there is nothing left in 
>> /var/log/message when system is back.
>>
>> If I do this copy with full SSH, the copy works perfectly well.
>>     (ssh xxx "cd /xxx ; tar c") | (cd /local ; tar x)
>>
>> I have the feeling that the system hangs often on the same huge file, 
>> but when I do copy it manually, even in a loop ... nothin happens.
>>
>> Any idea ?
>>
>>
> Stephan, was 4.14.101 your last "good" kernel?
> We also have 4.14.103 and yesterday 4.14.106 was released.
well ...
saw that this morning, but I'm not sure we were doing these operations 
in the past.

I can try the 106 this afternoon. I'll keep you posted.

Stephan.

>
> Pablo
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