Package: nfs-common Version: 1:1.2.1-3 Severity: important Step to reproduce : 1- mount -t nfs -o nfsvers=3,soft,proto=udp,retrans=7,timeo=3 ip:/foo /mnt/foo 2- dd if=/dev/urandom of=/mnt/foo/test 3- unplug nfs server network cable after a few seconds
Expected behavior : dd command should report I/O error. What actually happens : - dd is blocked - ctrl+c does nothing - dmesg says multiple times : nfs: server IP not responding, timed out man nfs says : If the soft option is specified, then the NFS client fails an NFS request after <retrans> retransmissions have been sent, causing the NFS client to return an error to the calling application. The NFS client generates a "server not responding" message after <retrans> retries. So nfs write should fail after the first "server not responding" message, and that is not the case. Notes : - dd will report write error a few seconds after nfs server comes back online. - I used dd as an example, but other programs doing heavy I/O are blocked as well. -- System Information: Debian Release: squeeze/sid APT prefers testing APT policy: (500, 'testing') Architecture: i386 (i686) Kernel: Linux 2.6.32-trunk-686 (SMP w/1 CPU core) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Versions of packages nfs-common depends on: ii adduser 3.112 add and remove users and groups ii initscripts 2.87dsf-8.1 scripts for initializing and shutt ii libc6 2.10.2-6 Embedded GNU C Library: Shared lib ii libcomerr2 1.41.11-1 common error description library ii libevent-1.4-2 1.4.13-stable-1 An asynchronous event notification ii libgssapi-krb5-2 1.8+dfsg~alpha1-7 MIT Kerberos runtime libraries - k ii libgssglue1 0.1-4 mechanism-switch gssapi library ii libk5crypto3 1.8+dfsg~alpha1-7 MIT Kerberos runtime libraries - C ii libkrb5-3 1.8+dfsg~alpha1-7 MIT Kerberos runtime libraries ii libnfsidmap2 0.23-2 An nfs idmapping library ii librpcsecgss3 0.19-2 allows secure rpc communication us ii libwrap0 7.6.q-18 Wietse Venema's TCP wrappers libra ii lsb-base 3.2-23 Linux Standard Base 3.2 init scrip ii netbase 4.40 Basic TCP/IP networking system ii portmap 6.0.0-2 RPC port mapper ii ucf 3.0025 Update Configuration File: preserv nfs-common recommends no packages. nfs-common suggests no packages. -- no debconf information -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
