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Bug 702250 - Disable jemalloc on mac 10.5 due to crash in ozone_size (apparent OS bug). r=khuey

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This is likely to regress a number of benchmarks.

--HG--
extra : rebase_source : 6831d8b3a846ec3193449132bef1648d426356db
This commit is contained in:
Justin Lebar 2011-11-21 09:02:17 -05:00
parent b74c7dc6e2
commit f12b89e5cb
2 changed files with 12 additions and 6 deletions
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5
configure.in
View File

@ -2350,7 +2350,10 @@ case "$target" in
MKCSHLIB='$(CC) $(CFLAGS) $(DSO_PIC_CFLAGS) $(DSO_LDOPTS) -o $@'
MOZ_OPTIMIZE_FLAGS="-O3"
_PEDANTIC=
MOZ_MEMORY=1
# Statically disable jemalloc on 10.5 and 32-bit 10.6. See bug 702250.
if test "$HAVE_64BIT_OS"; then
MOZ_MEMORY=1
fi
CFLAGS="$CFLAGS -fno-common"
CXXFLAGS="$CXXFLAGS -fno-common"
DLL_SUFFIX=".dylib"

13
memory/jemalloc/jemalloc.c
View File

@ -6063,13 +6063,16 @@ MALLOC_OUT:
default_zone = malloc_default_zone();
/*
* We only use jemalloc with versions of MacOS we've seen (10.5, 10.6, and
* 10.7). We'll have to update our code to work with newer versions,
* because the malloc zone layout is likely to change.
* We only use jemalloc with MacOS 10.6 and 10.7. jemalloc is disabled
* on 32-bit builds (10.5 and 32-bit 10.6) due to bug 702250, an
* apparent MacOS bug. In fact, this code isn't even compiled on
* 32-bit builds.
*
* We'll have to update our code to work with newer versions, because
* the malloc zone layout is likely to change.
*/
osx_use_jemalloc = (default_zone->version == LEOPARD_MALLOC_ZONE_T_VERSION ||
default_zone->version == SNOW_LEOPARD_MALLOC_ZONE_T_VERSION ||
osx_use_jemalloc = (default_zone->version == SNOW_LEOPARD_MALLOC_ZONE_T_VERSION ||
default_zone->version == LION_MALLOC_ZONE_T_VERSION);
/* Allow us dynamically turn off jemalloc for testing. */