linux-kernel - Re: RE: [PATCH] lib : lz4 using put_unaligned_le16 instead of put

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Date:	Tue, 22 Jul 2014 08:12:06 +0000 (GMT)
From:	Eunbong Song <eunb.song@...sung.com>
To:	Chanho Min <chanho.min@....com>,
	"gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"hyojun.im@....com" <hyojun.im@....com>
Subject: Re: RE: [PATCH] lib : lz4 using put_unaligned_le16 instead of
 put_unaligned


Hello. 

>Can you check if this patch fix your problem also?
Unfortunately your patch does not fix my problem. My test logs are as follow.
I did the same test with lzo compression algorithm and with my patch, and 
these work well.

debug_shell:/user> echo 1 > /sys/block/zram0/reset
debug_shell:/user> echo lz4 > /sys/block/zram0/comp_algorithm
debug_shell:/user> echo 520M > /sys/block/zram0/disksize
debug_shell:/user> mkfs.ext4 /dev/zram0
mke2fs 1.41.4 (27-Jan-2009)
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
33280 inodes, 133120 blocks
6656 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=138412032
5 block groups
32768 blocks per group, 32768 fragments per group
6656 inodes per group
Superblock backups stored on blocks:
        32768, 98304

Writing inode tables: done
Creating journal (4096 blocks): done
Writing superblocks and filesystem accounting information: done

This filesystem will be automatically checked every 25 mounts or
180 days, whichever comes first.  Use tune2fs -c or -i to override.
debug_shell:/user> mount /dev/zram0 /mnt/
EXT4-fs (zram0): unsupported inode size: 272
mount: wrong fs type, bad option, bad superblock on /dev/zram0,
       missing codepage or helper program, or other error
       In some cases useful info is found in syslog - try
       dmesg | tail  or so



Thanks