Bug 1034388 - cryptsetup-reencrypt utility fails to read/write devices with non-512 physical sector size (using O_DIRECT flag)
Summary: cryptsetup-reencrypt utility fails to read/write devices with non-512 physica...
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: cryptsetup
Version: 7.0
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: rc
: ---
Assignee: Ondrej Kozina
QA Contact: Release Test Team
URL:
Whiteboard:
Depends On:
Blocks: 809563 1025505
TreeView+ depends on / blocked
 
Reported: 2013-11-25 18:08 UTC by Ondrej Kozina
Modified: 2021-09-06 15:04 UTC (History)
7 users (show)

Fixed In Version: cryptsetup-1.6.3-1.el7
Doc Type: Known Issue
Doc Text:
The cryptsetup-reencrypt cannot reencrypt block devices with 4KiB sectors. All cryptsetup-reencrypt requests for such devices fail, and the reencryption process of the target block device does not start.
Clone Of:
Environment:
Last Closed: 2014-06-13 09:32:24 UTC
Target Upstream Version:

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Description Ondrej Kozina 2013-11-25 18:08:57 UTC 
Description of problem:

cryptsetup-reencrypt (just the utility) is not aware of non-512 sector size block devices

Version-Release number of selected component (if applicable):
cryptsetup-reencrypt-1.6.2-2.el7 (even upstream 1.6.2)

How reproducible:

Steps to Reproduce:
1. create 4K physical sector size block device (modprobe scsi_debug sector_size=4096 dev_size_mb=100) 
2. echo aaa | cryptsetup --force-password luksFormat /dev/sdd (/dev/sdd being 4K sector blockdev)
3. cryptsetup-reencrypt --debug /dev/sdd

Actual results:
cryptsetup-reencrypt fails w/ message "Cannot read /dev/sdd"

Expected results:
/dev/sdd is reencrypted
Comment 3 Ondrej Kozina 2013-11-26 12:36:19 UTC 
Fix is already on it's way to upstream cryptsetup
Comment 5 Ondrej Kozina 2013-12-09 09:56:50 UTC 
fixed in upstream: http://code.google.com/p/cryptsetup/source/detail?r=957201e7586f16f11106d7cde23289401d14d47b

(comment in git wrongly references different bug)
Comment 7 Petr Janda 2014-01-30 14:56:24 UTC 
verified
cryptsetup-reencrypt-1.6.3-1.el7.x86_64 works
Comment 8 Ludek Smid 2014-06-13 09:32:24 UTC 
This request was resolved in Red Hat Enterprise Linux 7.0.

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