------- Comment (attachment only) From david_pa...@uk.ibm.com 2024-04-17 06:19 EDT-------
** Attachment added: "tcpdump for aix 7.2 testing part 4 of 4" https://bugs.launchpad.net/bugs/2042363/+attachment/5766767/+files/tcpdump17_04_2024_09H_10M3.zip -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/2042363 Title: AIX 7.3 NFS client frequently returns an EIO error to an application when reading or writing to a file that has been locked with fcntl() on a Ubuntu 20.04 NFSV4 server Status in linux package in Ubuntu: New Bug description: ---Problem Description--- AIX 7.3 NFS client frequently returns an EIO error to an application when reading or writing to a file that has been locked with fcntl(). NFS server is Ubuntu 20.04.6 LTS, GNU/Linux 5.4.0-139-generic x86_64. The problem does not appear to affect other combinations of NFS client (including AIX 7.2) with this NFS server. The AIX team have indicated that the cause of the EIO is triggered by the NFS server returning a BAD_SEQID error which leads to the AIX NFS client incorrectly zeroing the stateid, which then leads to the NFS server returning a BAD_STATEID error and the NFS client then returns the EIO error. The AIX team would like to understand why the BAD_SEQID has been returned. ---uname output--- Linux duckseason 5.4.0-156-generic #173-Ubuntu SMP Tue Jul 11 07:25:22 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux Machine Type = VMware ESXi Server 7.0 4 x Intel(R) Xeon(R) Gold 6348H CPU @ 2.30GHz ---Steps to Reproduce--- We cannot offer a simple way to recreate the problem as it involves IBM MQ running on two primary machines (AIX) using the Ubuntu server for it's HA NFSv4 storage. However, we can provide any requested trace or dumps from any or all of the involved machines. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2042363/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
