Bug 237406 - Copying files via NFS mount pauses indefinitely
Copying files via NFS mount pauses indefinitely
Status: CLOSED NOTABUG
Product: Fedora
Classification: Fedora
Component: kernel (Show other bugs)
6
i686 Linux
medium Severity high
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Assigned To: Kernel Maintainer List
Brian Brock
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Depends On:
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Reported: 2007-04-22 00:01 EDT by Brian Chadwick
Modified: 2007-11-30 17:12 EST (History)
1 user (show)

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Doc Type: Bug Fix
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Last Closed: 2007-08-29 19:58:28 EDT
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Description Brian Chadwick 2007-04-22 00:01:20 EDT
Description of problem: When copying many SMALL files from a mounted NFS file
system, the copy process will copy some files, then pause indefinitely, then
copy some more, then pause again. 


Version-Release number of selected component (if applicable):

2.6.20-1.2944.fc6


How reproducible:

all the time. DOES NOT HAPPEN WITH ORIGINAL 2.6.18-1.2798.fc6 KERNEL


Steps to Reproduce:
1. mount nfs file system
2. copy a directory with hundreds of small files
3. Reverting to old kernel, no problems appear.
  
Actual results:


Expected results:


Additional info:
Comment 1 Brian Chadwick 2007-04-22 00:08:34 EDT
The pauses are VERY long, so much so that NFS is unusable for copying a large
directory full of small files. Copying one large file however does not cause any
problem. It seems to be related to the number of files, not the size.
Comment 2 Brian Chadwick 2007-06-15 23:42:59 EDT
Further investigation reveals that this behaviour is dependant on the type of
ethernet NIC. Changing to another card type (e100) clears the problem. The
faulty behaviour occurs with the "forcedeth" driver for nVidia NIC nForce 2
ethernet controller. Should I file another bug?
Comment 3 Steve Dickson 2007-08-29 19:58:28 EDT
If the problem continues to exist, Yes.

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