Red Hat Bugzilla – Bug 598400
under high IO load IO requests hang for 60-120 second before things return to normal
Last modified: 2010-12-03 09:08:05 EST
Description of problem: Using kernel-PAE-2.6.32.12-115.fc12.i686 the server IO requests hang for 60-120 seconds under high IO load. CIF clients see... CIFS VFS: No response for cmd 50 mid 4xxxxx (repeats with increasing 4xxxxx number) CIFS VFS: Send error in SETFSUnixInfo = -11 (repeats again from the start) NFS clients also see the problem (i.e. it is not just a samba related issue). Version-Release number of selected component (if applicable): kernel-PAE-2.6.32.12-115.fc12.i686 How reproducible: Boot the kernel-PAE-2.6.32.12-115.fc12.i686 kernel Steps to Reproduce: 1. Run three rsync programs on clients copying data from the server to local disks 2. Run two cp -r of 20 Gb directories on clients copying data from a cifs share mounted from the server on to a local disk 3. Run two cp -r of 20 Gb directories on clients copying data from an NFS mounted area from the server on to a local disk Actual results: Any program accessing the samba share from Windows will hang Expected results: Additional info: Problem vanishes if I boot the slightly older kernel kernel-PAE-2.6.32.11-99.fc12.i686
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Fedora 12 changed to end-of-life (EOL) status on 2010-12-02. Fedora 12 is no longer maintained, which means that it will not receive any further security or bug fix updates. As a result we are closing this bug. If you can reproduce this bug against a currently maintained version of Fedora please feel free to reopen this bug against that version. Thank you for reporting this bug and we are sorry it could not be fixed.