SIGBUS issue with jemalloc-4.1.0 on SH4 platform

[Schenk, Michael]

Dear Jason, dear friends,

I'm a big fan of JEMALLOC and we use it since years in our products but running into problems from time to time when upgrade to newer
versions. Currently we run (stable) with 4.0.4 on our SH-4 platform. Yesterday I have done some tests with the 4.1.0 and hit some SIGBUS issues during updating the software on my embedded devices.
The crash looks like:

crasher:  /proc/self/maps: 298c7000-298d7000 ---p 0000b000 00:0f 2312       /tmp/root/libgcc_s-4.8.4.so.1
crasher:  /proc/self/maps: 298d7000-298d8000 rw-p 0000b000 00:0f 2312       /tmp/root/libgcc_s-4.8.4.so.1
crasher:  /proc/self/maps: 298d8000-298da000 rw-p 00000000 00:00 0
crasher:  /proc/self/maps: 29a00000-29e02000 rw-p 00000000 00:00 0          [stack:2071]
crasher:  /proc/self/maps: 2dce4000-2dce5000 rw-p 00000000 00:00 0
crasher:  /proc/self/maps: 7b84a000-7b86c000 rw-p 00000000 00:00 0
crasher:BACKTRACE:
crasher: #0 stacktrace + 0x44 [ip=0x2960e400] [sp=0x29c534f0]
crasher: #1 stacktrace + 0x256 [ip=0x2960e612] [sp=0x29c577f8]
crasher: #2 <unknown symbol> [ip=0x29c579ac] [sp=0x29c57828]
crasher: #3 calloc + 0x5ac [ip=0x29589024] [sp=0x7b86a718]
Bus error
Error updating the software

In the past we discovered exactly the same issue on 4.0.0 which then was fixed in the 4.0.1 release. It's hard to get more traces because when we compile jemalloc with debug the crash did not happen.

Config for normal build:
jemalloc version   : 4.1.0-0-gdf900dbfaf4835d3efc06d771535f3e781544913
library revision   : 2

CONFIG             : --target=sh4-linux --host=sh4-linux --prefix=/work/galileo-8xxx/libs/jemalloc/install host_alias=sh4-linux target_alias=sh4-linux
CC                 : sh4-linux-gcc
CFLAGS             : -std=gnu99 -Wall -Werror=declaration-after-statement -pipe -g3 -fvisibility=hidden -O3 -funroll-loops
CPPFLAGS           :  -D_GNU_SOURCE -D_REENTRANT
LDFLAGS            :
EXTRA_LDFLAGS      :
LIBS               :  -lpthread
TESTLIBS           : -lrt
RPATH_EXTRA        :

XSLTPROC           : /usr/bin/xsltproc
XSLROOT            : /usr/share/sgml/docbook/xsl-stylesheets

PREFIX             : /work/galileo-8xxx/libs/jemalloc/install
BINDIR             : /work/galileo-8xxx/libs/jemalloc/install/bin
DATADIR            : /work/galileo-8xxx/libs/jemalloc/install/share
INCLUDEDIR         : /work/galileo-8xxx/libs/jemalloc/install/include
LIBDIR             : /work/galileo-8xxx/libs/jemalloc/install/lib
MANDIR             : /work/galileo-8xxx/libs/jemalloc/install/share/man

srcroot            :
abs_srcroot        : /work/galileo-8xxx/libs/jemalloc/jemalloc-4.1.0/
objroot            :
abs_objroot        : /work/galileo-8xxx/libs/jemalloc/jemalloc-4.1.0/

JEMALLOC_PREFIX    :
JEMALLOC_PRIVATE_NAMESPACE
                   : je_
install_suffix     :
malloc_conf        :
autogen            : 0
cc-silence         : 1
debug              : 0
code-coverage      : 0
stats              : 1
prof               : 0
prof-libunwind     : 0
prof-libgcc        : 0
prof-gcc           : 0
tcache             : 1
fill               : 1
utrace             : 0
valgrind           : 0
xmalloc            : 0
munmap             : 0
lazy_lock          : 0
tls                : 1
cache-oblivious    : 1


Config for debug build
jemalloc version   : 4.1.0-0-gdf900dbfaf4835d3efc06d771535f3e781544913
library revision   : 2

CONFIG             : --target=sh4-linux --host=sh4-linux --enable-debug --enable-prof --enable-prof-libunwind --prefix=/work/galileo-8xxx/libs/jemalloc/install host_alias=sh4-linux target_alias=sh4-linux
CC                 : sh4-linux-gcc
CFLAGS             : -std=gnu99 -Wall -Werror=declaration-after-statement -pipe -g3 -fvisibility=hidden
CPPFLAGS           :  -D_GNU_SOURCE -D_REENTRANT
LDFLAGS            :
EXTRA_LDFLAGS      :
LIBS               :  -lunwind -lm -lpthread
TESTLIBS           : -lrt
RPATH_EXTRA        :

XSLTPROC           : /usr/bin/xsltproc
XSLROOT            : /usr/share/sgml/docbook/xsl-stylesheets

PREFIX             : /work/galileo-8xxx/libs/jemalloc/install
BINDIR             : /work/galileo-8xxx/libs/jemalloc/install/bin
DATADIR            : /work/galileo-8xxx/libs/jemalloc/install/share
INCLUDEDIR         : /work/galileo-8xxx/libs/jemalloc/install/include
LIBDIR             : /work/galileo-8xxx/libs/jemalloc/install/lib
MANDIR             : /work/galileo-8xxx/libs/jemalloc/install/share/man

srcroot            :
abs_srcroot        : /work/galileo-8xxx/libs/jemalloc/jemalloc-4.1.0/
objroot            :
abs_objroot        : /work/galileo-8xxx/libs/jemalloc/jemalloc-4.1.0/

JEMALLOC_PREFIX    :
JEMALLOC_PRIVATE_NAMESPACE
                   : je_
install_suffix     :
malloc_conf        :
autogen            : 0
cc-silence         : 1
debug              : 1
code-coverage      : 0
stats              : 1
prof               : 1
prof-libunwind     : 1
prof-libgcc        : 0
prof-gcc           : 0
tcache             : 1
fill               : 1
utrace             : 0
valgrind           : 0
xmalloc            : 0
munmap             : 0
lazy_lock          : 0
tls                : 1
cache-oblivious    : 1

Any idea how I can debug this further or any hint what't going wrong ?

Many thanks in advanced and kind regards

Michael

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