From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.0.13pre) Gecko/20071018 Red Hat/1.0.9-6.el4 SeaMonkey/1.0.9 Description of problem: When running the stat commands continuously on an existing file, from a WS4 machine, to a filesystem mounted from WS3. It occassionally cannot find the file, and we get stat: cannot stat `/cfs/e/LoggerData/run_fy08/09503/RHIC/Instrumentation/10HzDX-IR6/2008-01-01.1412.sdds': No such file or directory Even though it found it before. This only happens when stat'ing from a ws4 machine to a file on ws3. Ws3 to ws3 works, ws4 to ws4 works, local files work. This is an issue because it crops up when doing recursive copies, it will miss files that actually exit. Version-Release number of selected component (if applicable): coreutils-5.2.1-31.6 How reproducible: Always Steps to Reproduce: 1.Go on a ws4 machine 2.Stat a file on a ws3 machine 3.Put this in a loop Actual Results: after some time, there will be a msg that it cannot stat the file Expected Results: should always see it Additional info: Not sure if this is a stat cmnd problem, or nfs or something else But I figure I'll start here. Simly put stat in a repeat repeat 50000 stat "some file" stat: cannot stat `/cfs/e/LoggerData/run_fy08/09503/RHIC/Instrumentation/10HzDX-IR6/2008-01-01.1412.sdds': No such file or directory
This request was evaluated by Red Hat Product Management for inclusion in a Red Hat Enterprise Linux maintenance release. Product Management has requested further review of this request by Red Hat Engineering, for potential inclusion in a Red Hat Enterprise Linux Update release for currently deployed products. This request is not yet committed for inclusion in an Update release.
I was unable to reproduce this bug. I installed RHEL 3.9 WS and RHEL 4.5 WS (both i386) into Xen (fully virtualized hosts). My exports on RHEL 3.9 WS machine: # cat /etc/exports /var xen65 Mount on RHEL 4.5 WS machine and check for bug: # cd /mnt # mkdir var-WS3 # mount -o ro -t nfs xen20:/var var-WS3 # while clear && stat var-WS3/yp/nicknames; do echo ok...; done It can run for hours. Coreutils version on RHEL 4.5 WS: # rpm -q coreutils coreutils-5.2.1-31.6 Could you please post your exports and mounts? strace output of failing stats would be also helpful. Thanks!
We were able to get around this problem when we upgraded RHWS4U5(kenel level: 2.6.9-55.0.9)-to-kernel level: RHWS4U6 (kernel level: 2.6.9-67.0.4)
Ok, thanks for informations, it really looks more like kernel issue than coreutils one. So closing CURRENTRELEASE with changed component to kernel...