Bug 237406

Summary:	Copying files via NFS mount pauses indefinitely
Product:	[Fedora] Fedora	Reporter:	Brian Chadwick <brianchad>
Component:	kernel	Assignee:	Kernel Maintainer List <kernel-maint>
Status:	CLOSED NOTABUG	QA Contact:	Brian Brock <bbrock>
Severity:	high	Docs Contact:
Priority:	medium
Version:	6	CC:	dshaw
Target Milestone:	---
Target Release:	---
Hardware:	i686
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2007-08-29 23:58:28 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Brian Chadwick 2007-04-22 04:01:20 UTC

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 04:08:34 UTC

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 2007-06-16 03:42:59 UTC

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 23:58:28 UTC

If the problem continues to exist, Yes.