From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 478 invoked by alias); 20 Oct 2011 13:39:59 -0000 Received: (qmail 458 invoked by uid 9737); 20 Oct 2011 13:39:58 -0000 Date: Thu, 20 Oct 2011 13:39:00 -0000 Message-ID: <20111020133958.456.qmail@sourceware.org> From: zkabelac@sourceware.org To: lvm-devel@redhat.com, lvm2-cvs@sourceware.org Subject: LVM2 ./WHATS_NEW_DM libdm/mm/pool-fast.c Mailing-List: contact lvm2-cvs-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Post: List-Help: , Sender: lvm2-cvs-owner@sourceware.org X-SW-Source: 2011-10/txt/msg00084.txt.bz2 CVSROOT: /cvs/lvm2 Module name: LVM2 Changes by: zkabelac@sourceware.org 2011-10-20 13:39:57 Modified files: . : WHATS_NEW_DM libdm/mm : pool-fast.c Log message: Mark chunk memory for free as defined again for valgrind When DEBUG_MEM is used, the memory is trashed with extra pattern before real free() is called, and as this memory was marked as non accessible when used with valgrind, make it again usable. Patches: http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/WHATS_NEW_DM.diff?cvsroot=lvm2&r1=1.515&r2=1.516 http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/libdm/mm/pool-fast.c.diff?cvsroot=lvm2&r1=1.14&r2=1.15 --- LVM2/WHATS_NEW_DM 2011/10/20 13:36:13 1.515 +++ LVM2/WHATS_NEW_DM 2011/10/20 13:39:57 1.516 @@ -1,5 +1,6 @@ Version 1.02.68 - ================================== + Fix valgrind error reports in free of pool chunks with DEBUG_MEM. Aling size of structure chunk for fast pool allocator to 8 bytes. Simplify some pointer operations in dm_free_aux() debug code. Remove unused dbg_malloc.h file from source tree. --- LVM2/libdm/mm/pool-fast.c 2011/08/11 17:29:05 1.14 +++ LVM2/libdm/mm/pool-fast.c 2011/10/20 13:39:57 1.15 @@ -300,6 +300,12 @@ static void _free_chunk(struct chunk *c) { +#ifdef VALGRIND_POOL +# ifdef DEBUG_MEM + if (c) + VALGRIND_MAKE_MEM_UNDEFINED(c + 1, c->end - (char *) (c + 1)); +# endif +#endif dm_free(c); }