Date: Fri, 12 Dec 2008 19:05:27 GMT From: Paul Wessel <pwessel@hawaii.edu> To: freebsd-gnats-submit@FreeBSD.org Subject: misc/129599: Possible 64-bit bug in qsort Message-ID: <200812121905.mBCJ5Rh1013057@www.freebsd.org> Resent-Message-ID: <200812121910.mBCJA1gX068250@freefall.freebsd.org>
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>Number: 129599 >Category: misc >Synopsis: Possible 64-bit bug in qsort >Confidential: no >Severity: serious >Priority: high >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Fri Dec 12 19:10:01 UTC 2008 >Closed-Date: >Last-Modified: >Originator: Paul Wessel >Release: Actually using OSX but bug is in FreeBSD too >Organization: GG/SOEST/UH >Environment: Darwin macnut 9.5.0 Darwin Kernel Version 9.5.0: Wed Sep 3 11:29:43 PDT 2008; root:xnu-1228.7.58~1/RELEASE_I386 i386 >Description: Darwin and I believe FreeBSD has a qsort which fails in 64-bit mode for large > 3.5Gb data. >How-To-Repeat: Try to sort any large array (say 4 Gb) in 64-bit mode using qsort. If it fails then FreeBSD also has this bug that Leopard has. >Fix: Two key internal variables in qsort (r and d) need to be long and not int. That is easy to check. Also, a swapfunc (if used) needs its 3rd argument to be size_t. With those changes the function works. >Release-Note: >Audit-Trail: >Unformatted:
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