[Kernel-packages] [Bug 1243636] Re: ecryptfs corrupts files over 4GB size on i686
-proposed works for me. Tested against NUL-File and multiple VirtualBox-
images.
** Tags removed: verification-needed-saucy
** Tags added: verification-done-saucy
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https://bugs.launchpad.net/bugs/1243636
Title:
ecryptfs corrupts files over 4GB size on i686
Status in eCryptfs:
Fix Committed
Status in “linux” package in Ubuntu:
Fix Committed
Bug description:
[SRU Justification]
Commit 24d15266bd86b7961f309a962fa3aa177a78c49f introduced a data corruption
regression on 32 bit architectures when writing past the 4 GB.
[Impact]
32 bit users experience corruption of large files.
[Fix]
A cast is needed when shifting the page's index. Colin and I independently
identified the problem. It is a simple fix that has been merged upstream:
http://git.kernel.org/linus/43b7c6c6a4e3916edd186ceb61be0c67d1e0969e
[Test Case]
Inside of an eCryptfs mount on an i686 Ubuntu install, create a file
containing
4 GB + 1 page worth (4096 bytes) of zeros. Then inspect the file for non-zero
bytes.
$ rm zeros
$ dd if=/dev/zero of=zeros bs=4096 count=$((4*1024*1024*1024/4096+4096))
1052672+0 records in
1052672+0 records out
4311744512 bytes (4.3 GB) copied, 226.133 s, 19.1 MB/s
$ hexdump -C zeros
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ||
*
10100
The hexdump output should show all zeros. A non patched kernel will show
non-zero bytes.
[Original Bug Report]
on extracting files with extracted size 4 GB files are getting currupted.
interestingly file gets currupted in the very moment the file size gets more
than 4GB.
ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: linux-image-3.11.0-12-generic 3.11.0-12.19
ProcVersionSignature: Ubuntu 3.11.0-12.19-generic 3.11.3
Uname: Linux 3.11.0-12-generic i686
ApportVersion: 2.12.5-0ubuntu2
Architecture: i386
Date: Wed Oct 23 12:11:43 2013
EcryptfsInUse: Yes
InstallationDate: Installed on 2013-07-20 (94 days ago)
InstallationMedia: Ubuntu 13.04 Raring Ringtail - Release i386 (20130424)
MarkForUpload: True
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_DIR=set
LANG=de_DE.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-12-generic
root=UUID=e97431f7-60b7-4fbe-b22f-5ca3304f2d50 ro quiet splash vt.handoff=7
SourcePackage: linux
UpgradeStatus: Upgraded to saucy on 2013-09-08 (45 days ago)
To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1243636] Re: ecryptfs corrupts files over 4GB size on i686
striscio, problem has been fixed on mainline-kernel 3.12, if you have to, just
update like described in:
http://ubuntuhandbook.org/index.php/2013/11/linux-kernel-3-12-released-install-ubuntu-or-linux-mint/
update to saucy-kernel will be as soon as possible.
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https://bugs.launchpad.net/bugs/1243636
Title:
ecryptfs corrupts files over 4GB size on i686
Status in eCryptfs:
Fix Committed
Status in “linux” package in Ubuntu:
In Progress
Bug description:
[SRU Justification]
Commit 24d15266bd86b7961f309a962fa3aa177a78c49f introduced a data corruption
regression on 32 bit architectures when writing past the 4 GB.
[Impact]
32 bit users experience corruption of large files.
[Fix]
A cast is needed when shifting the page's index. Colin and I independently
identified the problem. It is a simple fix that has been merged upstream:
http://git.kernel.org/linus/43b7c6c6a4e3916edd186ceb61be0c67d1e0969e
[Test Case]
Inside of an eCryptfs mount on an i686 Ubuntu install, create a file
containing
4 GB + 1 page worth (4096 bytes) of zeros. Then inspect the file for non-zero
bytes.
$ rm zeros
$ dd if=/dev/zero of=zeros bs=4096 count=$((4*1024*1024*1024/4096+4096))
1052672+0 records in
1052672+0 records out
4311744512 bytes (4.3 GB) copied, 226.133 s, 19.1 MB/s
$ hexdump -C zeros
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ||
*
10100
The hexdump output should show all zeros. A non patched kernel will show
non-zero bytes.
[Original Bug Report]
on extracting files with extracted size 4 GB files are getting currupted.
interestingly file gets currupted in the very moment the file size gets more
than 4GB.
ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: linux-image-3.11.0-12-generic 3.11.0-12.19
ProcVersionSignature: Ubuntu 3.11.0-12.19-generic 3.11.3
Uname: Linux 3.11.0-12-generic i686
ApportVersion: 2.12.5-0ubuntu2
Architecture: i386
Date: Wed Oct 23 12:11:43 2013
EcryptfsInUse: Yes
InstallationDate: Installed on 2013-07-20 (94 days ago)
InstallationMedia: Ubuntu 13.04 Raring Ringtail - Release i386 (20130424)
MarkForUpload: True
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_DIR=set
LANG=de_DE.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-12-generic
root=UUID=e97431f7-60b7-4fbe-b22f-5ca3304f2d50 ro quiet splash vt.handoff=7
SourcePackage: linux
UpgradeStatus: Upgraded to saucy on 2013-09-08 (45 days ago)
To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1243636] Re: ecryptfs currupts files over 4GB size on i686
Patch works for me on 3.12-rc6.
Thanks Colin and Tyler!
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You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1243636
Title:
ecryptfs currupts files over 4GB size on i686
Status in eCryptfs:
In Progress
Status in “linux” package in Ubuntu:
In Progress
Bug description:
[SRU Justification]
Commit 24d15266bd86b7961f309a962fa3aa177a78c49f introduced a data corruption
regression on 32 bit architectures when writing past the 4 GB.
[Impact]
32 bit users experience corruption of large files.
[Fix]
A cast is needed when shifting the page's index. Colin and I independently
identified the problem. It is a simple fix that is currently located in the
eCryptfs next branch:
http://git.kernel.org/cgit/linux/kernel/git/tyhicks/ecryptfs.git/commit/?h=nextid=43b7c6c6a4e3916edd186ceb61be0c67d1e0969e
I've sent a pull request to Linus, but he has not yet had a chance to pull in
the change:
https://lkml.org/lkml/2013/10/24/424
[Test Case]
Inside of an eCryptfs mount on an i686 Ubuntu install, create a file
containing
4 GB + 1 page worth (4096 bytes) of zeros. Then inspect the file for non-zero
bytes.
$ rm zeros
$ dd if=/dev/zero of=zeros bs=4096 count=$((4*1024*1024*1024/4096+4096))
1052672+0 records in
1052672+0 records out
4311744512 bytes (4.3 GB) copied, 226.133 s, 19.1 MB/s
$ hexdump -C zeros
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ||
*
10100
The hexdump output should show all zeros. A non patched kernel will show
non-zero bytes.
[Original Bug Report]
on extracting files with extracted size 4 GB files are getting currupted.
interestingly file gets currupted in the very moment the file size gets more
than 4GB.
ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: linux-image-3.11.0-12-generic 3.11.0-12.19
ProcVersionSignature: Ubuntu 3.11.0-12.19-generic 3.11.3
Uname: Linux 3.11.0-12-generic i686
ApportVersion: 2.12.5-0ubuntu2
Architecture: i386
Date: Wed Oct 23 12:11:43 2013
EcryptfsInUse: Yes
InstallationDate: Installed on 2013-07-20 (94 days ago)
InstallationMedia: Ubuntu 13.04 Raring Ringtail - Release i386 (20130424)
MarkForUpload: True
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_DIR=set
LANG=de_DE.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-12-generic
root=UUID=e97431f7-60b7-4fbe-b22f-5ca3304f2d50 ro quiet splash vt.handoff=7
SourcePackage: linux
UpgradeStatus: Upgraded to saucy on 2013-09-08 (45 days ago)
To manage notifications about this bug go to:
https://bugs.launchpad.net/ecryptfs/+bug/1243636/+subscriptions
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[Kernel-packages] [Bug 1243636] [NEW] ecryptfs currupts files over 4GB size
Public bug reported: on extracting files with extracted size 4 GB files are getting currupted. interestingly file gets currupted in the very moment the file size gets more than 4GB. ProblemType: Bug DistroRelease: Ubuntu 13.10 Package: linux-image-3.11.0-12-generic 3.11.0-12.19 ProcVersionSignature: Ubuntu 3.11.0-12.19-generic 3.11.3 Uname: Linux 3.11.0-12-generic i686 ApportVersion: 2.12.5-0ubuntu2 Architecture: i386 Date: Wed Oct 23 12:11:43 2013 EcryptfsInUse: Yes InstallationDate: Installed on 2013-07-20 (94 days ago) InstallationMedia: Ubuntu 13.04 Raring Ringtail - Release i386 (20130424) MarkForUpload: True ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=set LANG=de_DE.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-12-generic root=UUID=e97431f7-60b7-4fbe-b22f-5ca3304f2d50 ro quiet splash vt.handoff=7 SourcePackage: linux UpgradeStatus: Upgraded to saucy on 2013-09-08 (45 days ago) ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: apport-bug i386 saucy -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1243636 Title: ecryptfs currupts files over 4GB size Status in “linux” package in Ubuntu: New Bug description: on extracting files with extracted size 4 GB files are getting currupted. interestingly file gets currupted in the very moment the file size gets more than 4GB. ProblemType: Bug DistroRelease: Ubuntu 13.10 Package: linux-image-3.11.0-12-generic 3.11.0-12.19 ProcVersionSignature: Ubuntu 3.11.0-12.19-generic 3.11.3 Uname: Linux 3.11.0-12-generic i686 ApportVersion: 2.12.5-0ubuntu2 Architecture: i386 Date: Wed Oct 23 12:11:43 2013 EcryptfsInUse: Yes InstallationDate: Installed on 2013-07-20 (94 days ago) InstallationMedia: Ubuntu 13.04 Raring Ringtail - Release i386 (20130424) MarkForUpload: True ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=set LANG=de_DE.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-12-generic root=UUID=e97431f7-60b7-4fbe-b22f-5ca3304f2d50 ro quiet splash vt.handoff=7 SourcePackage: linux UpgradeStatus: Upgraded to saucy on 2013-09-08 (45 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1243636/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
