Red Hat Bugzilla – Bug 221282
udf: support files larger than 1G
Last modified: 2008-05-21 10:40:30 EDT
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User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; de; rv:18.104.22.168) Gecko/20061219 Fedora/22.214.171.124-1.fc6 Firefox/126.96.36.199 pango-text
Description of problem:
the max filesize on a "iomega rev 35 drive" is now limited at 1 gb.
<= fc5 could create tar-archives > 1 gb on this media
tar, cp, ... are now failing at 1 gb
# ll -h test.tar
-rw-r--r-- 1 admin admin 1,9G 3. Jan 16:44 test.tar
# cp test.tar /media/REV_GHOST_DISK/
Die maximale Dateigröße ist überschritten (the max filesize is over...)
# ll -h /media/REV_GHOST_DISK/test.tar
-rw-r--r-- 1 root root 1,0G 3. Jan 17:14 /media/REV_GHOST_DISK/test.tar
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. `tar cvf <rev-35-drive> <archive>`
2. try different media
"Die maximale Dateigröße ist überschritten"
no archives > 1 gb
`tar czvf` stops at 1 gb without warning.
$ tar czvf /media/REV_GHOST_DISK/test.tgz path/
$ echo $?
# ll test.t*
-rw-r--r-- 1 root root 1073741824 3. Jan 17:14 test.tar
-rw-r--r-- 1 admin admin 1073741824 3. Jan 17:34 test.tgz
should work as before, no 1 gb filesize limitation
# df -h /media/REV_GHOST_DISK/
Dateisystem Größe Benut Verf Ben% Eingehängt auf
/dev/scd0 33G 9,9G 23G 31% /media/REV_GHOST_DISK
# mount | grep scd0
/dev/scd0 on /media/REV_GHOST_DISK type udf (rw,noexec,nosuid,nodev,uid=500)
no rev - no backup
no risk - no fun
fc7 test1 + rawhide updates = max. 1 gb filesize
rhel5 beta 1 = ma.x 1 gb filesize
the same rev-drive-usb and the same rev-media on he same macbook dualcore
ubuntu live desktop 6.06
ubuntu live desktop 6.10
max filesize 1 gb
was there a change in the kernel or what is the reason for this limitation ?
after 3 month absolutely no comment from redhat.
fc6 -> rhel5
iomega rev drive 70 gb - sata
the same problem, max 1 gb filesize
# cat /proc/scsi/scsi
Host: scsi3 Channel: 00 Id: 00 Lun: 00
Vendor: Iomega Model: RRD2 Rev: P064
Type: CD-ROM ANSI SCSI revision: 05
REV drive file size limitations
Does the Iomega® REV® drive have a file size limitation?
Iomega® REV® drives use a unique disk format called the REV UDF format. The REV
UDF format can support file sizes up to 8TB, which is much larger than a REV
disk can actually hold. Any other file size limitations you may encounter are
most likely due to various backup programs that have their own file size
limitations, which are not related to the REV UDF file system format. Refer to
the backup software vendor for more information regarding file sizes.
A bugzilla entry for RHEL without an Issue-Tracker ticket will be taken
Six patches to fix some problems in UDF were posted to linux-kernel on
March 6 2007 by Jan Kara of Suse but they have not been merged into the
Thread title is "UDF cleanup and fixes"; all six patches were acked by
Jan has since posted a couple other patches in addition to that patchset, but
they still have issues (deadlocks)
the 1Gb limit was imposed some time ago as a quick fix for a security problem
(CVE-2006-4145). Jan's patchset is almost ready to go, and will make it to
RHEL5 when it's ready.
kernel-2.6.20-1.2962.fc6 >1 gb is ok
rhel 5 server
kernel-2.6.18-8.1.8.el5 max filesize =1gb
rhel 5 server
max filesize = 1gb
> 1 gb is ok
Yep, the newer kernels have the fix to safely allow >1gb again. I have another
bug open (should probably dupe this to that, or vice versa) to get the upstream
fix into RHEL5.
*** Bug 251127 has been marked as a duplicate of this bug. ***
Upstream patchset for this has had quite a lot of soak time, and I've worked w/
Jan to iron out a couple issues. Would like to see this for 5.2.
This request was evaluated by Red Hat Product Management for inclusion in a Red
Hat Enterprise Linux maintenance release. Product Management has requested
further review of this request by Red Hat Engineering, for potential
inclusion in a Red Hat Enterprise Linux Update release for currently deployed
products. This request is not yet committed for inclusion in an Update
You can download this test kernel from http://people.redhat.com/dzickus/el5
no problems here on a test machine
added to RHEl5.2 release notes under "Resolved issues":
REV UDF file sizes larger than 1GB are now supported.
the RHEL5.2 release notes will be dropped to translation on April 15, 2008, at
which point no further additions or revisions will be entertained.
a mockup of the RHEL5.2 release notes can be viewed at the following link:
please use the aforementioned link to verify if your bugzilla is already in the
release notes (if it needs to be). each item in the release notes contains a
link to its original bug; as such, you can search through the release notes by
intranet.corp.redhat.com is not reachable via internet
host redhat.com has address 188.8.131.52
host corp.redhat.com has address ??
host intranet.corp.redhat.com has address ??
comment #25 was most likely intended for an internal audience, sorry about that.
I was able to copy a 1.3GB file to a udf filesystem mounted on a loopback
device. It was extremely slow, but eventually it got there so I think this
particular bug is fixed.
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.