Package: coreutils Version: 8.23-4 Severity: grave Justification: renders package unusable
Dear Maintainer, CRC checks on large files often return variable values. I have tried several different CRC check utilities, md5sum, md6sum, sha56sum, etc., and they all exhibit the same behavior. Multiple runs of the utility on a given file more often than not will return different values for many or all of the attempts. I have only noticed the effect on large files, but I cannot say with authority it only happens on large files. I noticed the effect when checking file integrity between identical files on two different systems. The backup server is running Squeeze, and checks on the files of that system are consistent, but when comparing the CRC between that system and the primary, which is running Jessie, the checks often failed. At first I of course thought this indicated file corruption on one server or the other, beut when I started investigating, I discovered sometimes the results were different on the two systems and sometimes the same. At that point I discovered it was only th! e machine running Jessie that was producing inconsistent results. At first I thought I was having problems with the file system (and indeed I am, as it happens), but when I copied one of the large files over to a different file system, the problem perissts. One is an XFS file system (the one having the problems) and the other is an Ext4 file system. Note this impacts a great many very important procedures and utilities, including my backup and compare strategy using rsync, file systems checks, etc. RAID-Server:/# sha256sum "/RAID/Recordings/Abyss, The (Recorded Thu Sep 11, 2014, MAXHD).mp4" b2e15ca178832e9f12a4823c583eefb2028cec9f7c45f36ea9dfa2297c904d6d /RAID/Recordings/Abyss, The (Recorded Thu Sep 11, 2014, MAXHD).mp4 RAID-Server:/# sha256sum "/RAID/Recordings/Abyss, The (Recorded Thu Sep 11, 2014, MAXHD).mp4" eb3067b250d5d16e1d5d3f2b328001be91c4e5107a14e0010940acdab6584f2b /RAID/Recordings/Abyss, The (Recorded Thu Sep 11, 2014, MAXHD).mp4 RAID-Server:/# sha256sum "/RAID/Recordings/Abyss, The (Recorded Thu Sep 11, 2014, MAXHD).mp4" 6eddb4174b49e9bac741070559ad159acaa39a404a1b75c395d716910e5c81ef /RAID/Recordings/Abyss, The (Recorded Thu Sep 11, 2014, MAXHD).mp4 -- System Information: Debian Release: 8.1 APT prefers stable-updates APT policy: (500, 'stable-updates'), (500, 'stable') Architecture: amd64 (x86_64) Kernel: Linux 3.16.0-4-amd64 (SMP w/8 CPU cores) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: sysvinit (via /sbin/init) Versions of packages coreutils depends on: ii libacl1 2.2.52-2 ii libattr1 1:2.4.47-2 ii libc6 2.19-18 ii libselinux1 2.3-2 coreutils recommends no packages. coreutils suggests no packages. -- no debconf information -- To UNSUBSCRIBE, email to debian-bugs-rc-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
