Bug 204961 - NFS gives I/O errors on large files
Summary: NFS gives I/O errors on large files
Keywords:
Status: CLOSED DUPLICATE of bug 204859
Alias: None
Product: Fedora
Classification: Fedora
Component: kernel
Version: rawhide
Hardware: ia64
OS: Linux
high
high
Target Milestone: ---
Assignee: Red Hat Kernel Manager
QA Contact: Brian Brock
URL:
Whiteboard:
Depends On:
Blocks: fedora-ia64
TreeView+ depends on / blocked
 
Reported: 2006-09-01 19:02 UTC by Doug Chapman
Modified: 2007-11-30 22:11 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2006-09-01 20:37:26 UTC
Type: ---
Embargoed:


Attachments (Terms of Use)

Description Doug Chapman 2006-09-01 19:02:06 UTC
Description of problem:
This is beeing seen on my HP Integrity servers.  It may not be ia64 specific but
that is all I have to test on right now.

Note that this blocks NFS installations.

This was originally seen during installation however I am able to reproduce the
root of the problem on a running system where I have installed the appropriate
kernel.

simply trying to cat a large file that is mounted via nfs can reproduce this:

# ls -l stage2.img
-rw-r--r-- 1 root root 93577216 Sep  1 14:22 stage2.img
# cat stage2.img > /dev/null
cat: stage2.img: Input/output error

smaller files seem OK:
# ls -l boot.img
-rw-r--r-- 1 root root 28606464 Sep  1 14:30 boot.img
# cat boot.img > /dev/null
(no error seen)

We ran into this when doing intalls of rawhide and anaconda attempted to
loopback mount the stage2.img file.



Version-Release number of selected component (if applicable):
kernel-2.6.17-1.2608.fc6

How reproducible:
100%

Steps to Reproduce:
1. mkdir /mnt/bigpapi
2. mount bigpapi.boston.redhat.com:/vol/engineering/redhat /mnt/bigpapi
3. cat
/mnt/bigpapi/nightly/rawhide-20060901/development/ia64/os/images/stage2.img >
/dev/null


Actual results:
cat: stage2.img: Input/output error


Expected results:
should get no error


Additional info:

Comment 1 Prarit Bhargava 2006-09-01 19:07:16 UTC
Possibly related to some of the other installation weirdness we're seeing?

Comment 2 Doug Chapman 2006-09-01 19:20:53 UTC
I partly agree with prarit that this might be related to bug 204638 where we
were seenig random panics during NFS installs.  However, this particular aspect
of the bug just started with today's (0901) build and is 100% reproducable.  The
other problems were fairly random and I didn't hit them 100% of the time.



Comment 3 Bill Nottingham 2006-09-01 20:37:26 UTC

*** This bug has been marked as a duplicate of 204859 ***


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