Created attachment 430020 [details] part of /var/log/messages OS: CentOS 5.5 x86_64 Because of slow write performance of nfs v3 I tried to play a little with nfs v4. The server worked previously fine using nfs v3 mounts. I tried to copy 4,8,16 GB files on the nfs server. For several transfers it worked, and next the nfsd processes and kjournald got blocked. I attache /var/log/messages. The system was working but any access to affected filesystem caused the accessing process to block. To get it to normal state again a reset was necessary (reboot hung of course). The filesystem that was exported was stacked as below: RAID1->LUKS->LVM->Ext3. Also reported in CentOS bugzilla: http://bugs.centos.org/view.php?id=4337
This bug/component is not included in scope for RHEL-5.11.0 which is the last RHEL5 minor release. This Bugzilla will soon be CLOSED as WONTFIX (at the end of RHEL5.11 development phase (Apr 22, 2014)). Please contact your account manager or support representative in case you need to escalate this bug.
Thank you for submitting this request for inclusion in Red Hat Enterprise Linux 5. We've carefully evaluated the request, but are unable to include it in RHEL5 stream. If the issue is critical for your business, please provide additional business justification through the appropriate support channels (https://access.redhat.com/site/support).