reassign 585809 valgrind thanks On Mon, Jun 14, 2010 at 11:31:19AM +0200, Aurelien Jarno wrote: > On Sun, Jun 13, 2010 at 04:48:09PM -0700, Nick Lewycky wrote: > > Package: valgrind > > Version: 1:3.5.0-3 > > Severity: important > > > > A change in /lib/ld-linux.so.2 has made valgrind report an excess number of > > errors: > > > > $ valgrind /bin/true > > ==6032== Memcheck, a memory error detector > > ==6032== Copyright (C) 2002-2009, and GNU GPL'd, by Julian Seward et al. > > ==6032== Using Valgrind-3.5.0-Debian and LibVEX; rerun with -h for > > copyright info > > ==6032== Command: /bin/true > > ==6032== > > ==6032== Conditional jump or move depends on uninitialised value(s) > > ==6032== at 0x4416471: strlen (strlen.S:110) > > ==6032== by 0x4407C04: _dl_init_paths (dl-load.c:776) > > ==6032== by 0x4402A2C: dl_main (rtld.c:1393) > > ==6032== by 0x44141D6: _dl_sysdep_start (dl-sysdep.c:243) > > ==6032== by 0x4400C6C: _dl_start (rtld.c:338) > > ==6032== by 0x4400856: ??? (in /lib/ld-2.11.1.so)
The problem is that strlen() process data 4 bytes by 4 bytes, so it can read up to 3 bytes more if the first byte is 0. That's why valgrind triggers here. However this is a valid optimisation as long as you don't cross a page, so valgrind should be taught about that in its suppress files. -- Aurelien Jarno GPG: 1024D/F1BCDB73 aurel...@aurel32.net http://www.aurel32.net -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
