Public bug reported:
When comparing two inputs that are identical or almost identical, the
memory usage of diff should be small. However comparing two completely
identical inputs can trigger a memory exhausted error.
Actual result:
$ diff -u <(seq 1234567890) <(seq 1234567890) ; echo $?
diff: memory exhausted
2
$
Expected result:
$ diff -u <(seq 1234567890) <(seq 1234567890) ; echo $?
0
$
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: diffutils 1:3.2-1ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-24.39-generic 3.2.16
Uname: Linux 3.2.0-24-generic i686
NonfreeKernelModules: nvidia
ApportVersion: 2.0.1-0ubuntu8
Architecture: i386
Date: Thu Aug 2 11:30:37 2012
EcryptfsInUse: Yes
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
ProcEnviron:
LANGUAGE=en_US:en
TERM=xterm
PATH=(custom, user)
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: diffutils
UpgradeStatus: Upgraded to precise on 2012-05-08 (85 days ago)
** Affects: diffutils (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug i386 precise
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https://bugs.launchpad.net/bugs/1032117
Title:
memory exhausted when comparing large identical inputs
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