Bug 177271

Summary:	cpio can't backup files on ext3 unless fs created with largefile support
Product:	[Fedora] Fedora	Reporter:	sean fulton <sean>
Component:	cpio	Assignee:	Peter Vrabec <pvrabec>
Status:	CLOSED UPSTREAM	QA Contact:	Brock Organ <borgan>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	rawhide
Target Milestone:	---
Target Release:	---
Hardware:	i386
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
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Clone Of:		Environment:
Last Closed:	2006-01-09 10:04:39 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 sean fulton 2006-01-08 17:28:48 UTC

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Description of problem:
Backing up files larger than 2 Gbytes in size with cpio results in the error: "Value too large for defined data type" and the files are skipped.

I thought it was a problem with CPIO, and downloaded and re-compiled many versions, all with the same result. It turns out that cpio will archive files larger than 2 Gbytes if they are an ext3 filesystem created with -T largefile. But on filesystems created with the default ext3 fs creation options, it fails.

This is an issue because we have a filesystem on web content which is mainly small files, yet there are one or two large files that need to be backed up. Our current cpio-based backup scripts simply skip the files.

Please note that other utilities, inclusing zcat and dd work on large files which cpio fails to copy. For example, I can do zcat largefile.cpio | cpio -itv with no problem.



Version-Release number of selected component (if applicable):
cpio-2.5-3.2.legacy.i386.rpm

How reproducible:
Always

Steps to Reproduce:
1. Create a file 3 GB in size (largefile.tar)
2. ls *.tar | cpio -ov -O./backup.cpio
3. You get the error.
4. Copy file to a machine with ext3 -T largefile used to create the filesystems
5. ls *.tar | cpio -ov -O./backup.cpio
6. It works!
  

Actual Results:  Value too large for defined data type

Expected Results:  File should be backed up.

Additional info:

Comment 1 Jesse Keating 2006-01-08 17:36:12 UTC

This sounds like a non-legacy specific issue.  This is an upstream cpio issue,
and should be filed upstream with them.

Comment 2 Jesse Keating 2006-01-08 17:37:53 UTC

Does this still happen in Fedora Core Devel (or even FC4 for that matter)?

Comment 3 sean fulton 2006-01-08 18:00:24 UTC

The latest version I tried to was 2.6-2, which I think came from the pre-release
FC4. I downloaded and compiled cpio-2.6-2.src.rpm on the target system with no luck.

Comment 4 Peter Vrabec 2006-01-09 10:04:39 UTC

Try cpio-2.6-9.FC4 or cpio-2.6-10(devel), file limit size has been enlarged to
4GB there. Because of cpio header it is not possible to get over 4GB limit.It's
up to upstream to change it.