[linux-cifs-client] CIFS doesn't cope well with network inter ruptions

[a.nielsen at research.uq.edu.au]

Hi Steve,
 
In that case I'll keep an eye out for v1.33 and see if it makes a
difference.  FWIW, I'm running the version that comes with kernel 2.6.11.8.

Out of curiosity, is there an option like NFS' "soft" which causes
everything to time out after a while?  That way if the server was down for
an extended period of time nothing would lock up permanently.
 
Cheers,
Adam.

________________________________

From: Steven French [mailto:sfrench at us.ibm.com] 
Sent: Wednesday, 20 April 2005 10:00 AM
To: Dave Stahl
Cc: a.nielsen at research.uq.edu.au; linux-cifs-client at lists.samba.org
Subject: Re: [linux-cifs-client] CIFS doesn't cope well with network
interruptions



I made large changes to how the cifs demultiplexing of responses works -
about three months ago which helped some users problems (and went away from
using tcp peek on the socket), so depending on your current version this
could be addressed. Very recently I made changes to handle errors better on
the 2nd (of the two) recvmsg calls (cifs calls recvmsg on the length field
of the SMB header, then reads that many bytes from the socket with the
second recvmsg) - the 1st recvmsg was fine, but the second one did not
handle all errors that it should have. I don't know if that is your issue
for sure but it is plausbile. I will be including that fix in the upcoming
1.33 version of CIFS.


Steve French
Senior Software Engineer
Linux Technology Center - IBM Austin
phone: 512-838-2294
email: sfrench at-sign us dot ibm dot com