Re: Apache segmentation fault when loading libphp7.so

Am 13.08.2020 um 14:34 schrieb Christoph M. Becker: > On 13.08.2020 at 13:47, Kai Fürstenberg wrote: > >> Am 13.08.2020 um 12:53 schrieb Christoph M. Becker: >> >>> On 13.08.2020 at 11:52, Kai Fürstenberg wrote: >>> >>>> Am 13.08.2020 um 10:31 schrieb Christoph M. Becker: >>>> >>>>> On 12.08.2020 at 18:09, Kai Fürstenberg wrote: >>>>> >>>>>> Hello everybody, >>>>>> >>>>>> and thank you for you help so far. >>>>>> >>>>>> I played around with gdb a little bit. >>>>>> >>>>>> I re-configured php the way I did in 7.2 (just with some slight >>>>>> modifications), to use mysql, gd and some other things. >>>>>> >>>>>> But this time, httpd stops with >>>>>> >>>>>> Program received signal SIGSEGV, Segmentation fault. >>>>>> resolve_stripslashes () at >>>>>> /usr/src/apache_testing/php-7.4.9/Zend/zend_cpuinfo.h:157 >>>>>> 157             __builtin_cpu_init(); >>>>>> >>>>>> Before I had the fault >>>>>> >>>>>> #0  resolve_base64_decode () at >>>>>> /usr/src/apache_testing/php-7.4.9/Zend/zend_cpuinfo.h:141 >>>>>> >>>>>> Line 141 of zend_cpuinfo.h is the very same command >>>>>> __builtin_cpu_init() >>>>>> >>>>>> It seems, that exactly this command __builtin_cpu_init() fails for some >>>>>> reason... >>>>> >>>>> Did you check config.log? There is a test for __builtin_cpu_init() >>>>> availability[1] which apparently succeeds on your system, but it's worth >>>>> to actually look that up in config.log. Maybe this test should use >>>>> AC_RUN_IFELSE instead of AC_LINK_IFELSE (and have the then and else >>>>> branch of the ternary operator swapped)? >>>>> >>>>> [1] >>>>> >>>>> <https://github.com/php/php-src/blob/php-7.3.21/acinclude.m4#L3261-L3278> >>>> >>>> config.log: >>>> configure:13702: checking for __builtin_cpu_init >>>> configure:13718: cc -o conftest -g -O2 -fvisibility=hidden -pthread >>>> -D_REENTRANT conftest.c -lm -ldl -lpthread >&5 >>>> configure:13718: $? = 0 >>>> configure:13721: result: yes >>>> configure:13741: checking for __builtin_cpu_supports >>>> configure:13757: cc -o conftest -g -O2 -fvisibility=hidden -pthread >>>> -D_REENTRANT conftest.c -lm -ldl -lpthread >&5 >>>> configure:13757: $? = 0 >>>> configure:13760: result: yes >>>> >>>> I just don't understand what you mean with the link... >>> >>> I basically suggested to apply >>> >>> <https://gist.github.com/cmb69/3fd0106ce78446c9e10e54eec21a4d82>, >>> and to >>> run ./configure again. Would the result still be "yes"? >> >> OK, so far so good. >> >> I just wonder, which file you want me to patch, because my acinclude.m4 >> (in Zend subfolder, v7.3) only has about 200 lines (the mentioned part >> is missing in this file) and in 7.4 this file is completely missing... > > The patch is about acinclude.m4 in the toplevel folder: > <https://github.com/php/php-src/blob/php-7.3.21/acinclude.m4ß8ËÛéf`F~ƒE±m5 > µ>. This file is not available in 7.4. In 7.3 it's there, but not 7.4. I can try 7.3 with your patch. Just gimme some time and see if this works. root@xserv01:/usr/src/apache_testing/php-7.4.9# ls -al insgesamt 4528 drwxrwxr-x 20 root root 4096 Aug 13 13:32 . drwxr-xr-x 5 root root 4096 Aug 12 13:24 .. drwxrwxr-x 2 root root 4096 Aug 4 10:28 appveyor -rw-rw-r-- 1 root root 1560 Aug 4 10:28 .appveyor.yml drwxrwxr-x 4 root root 4096 Aug 4 10:28 azure -rw-rw-r-- 1 root root 3342 Aug 4 10:28 azure-pipelines.yml drwxrwxr-x 2 root root 4096 Aug 4 10:28 build -rwxrwxr-x 1 root root 4012 Aug 4 10:28 buildconf -rw-rw-r-- 1 root root 346 Aug 4 10:28 buildconf.bat -rw-rw-r-- 1 root root 12737 Aug 4 10:28 CODING_STANDARDS.md -rw-r--r-- 1 root root 732953 Aug 13 10:09 config.log -rwxr-xr-x 1 root root 380 Aug 13 10:09 config.nice -rwxr-xr-x 1 root root 46739 Aug 13 10:09 config.status -rwxr-xr-x 1 root root 2392341 Aug 4 10:28 configure -rw-rw-r-- 1 root root 44159 Aug 4 10:28 configure.ac -rw-rw-r-- 1 root root 20278 Aug 4 10:28 CONTRIBUTING.md drwxrwxr-x 2 root root 4096 Aug 4 10:28 docs -rw-rw-r-- 1 root root 733 Aug 4 10:28 .editorconfig drwxrwxr-x 74 root root 4096 Aug 4 10:28 ext -rw-rw-r-- 1 root root 23726 Aug 4 10:28 EXTENSIONS -rw-rw-r-- 1 root root 13302 Aug 4 10:28 .gdbinit -rw-rw-r-- 1 root root 758 Aug 4 10:28 .gitattributes -rw-rw-r-- 1 root root 8549 Aug 4 10:28 .gitignore drwxr-xr-x 2 root root 4096 Aug 10 11:22 include -rw-r--r-- 1 root root 1120 Aug 13 10:11 libphp7.la drwxr-xr-x 2 root root 4096 Aug 13 10:11 .libs drwxr-xr-x 2 root root 4096 Aug 13 10:11 libs -rwxr-xr-x 1 root root 210992 Aug 13 10:09 libtool -rw-rw-r-- 1 root root 3204 Aug 4 10:28 LICENSE drwxrwxr-x 4 root root 4096 Aug 13 10:11 main -rw-r--r-- 1 root root 261499 Aug 13 10:09 Makefile -rw-r--r-- 1 root root 13159 Aug 13 10:09 Makefile.fragments -rw-r--r-- 1 root root 216866 Aug 13 10:09 Makefile.objects drwxr-xr-x 2 root root 4096 Aug 13 10:12 modules -rw-rw-r-- 1 root root 77479 Aug 4 10:28 NEWS drwxrwxr-x 2 root root 4096 Aug 4 10:28 pear -rw-rw-r-- 1 root root 72278 Aug 4 10:28 php.ini-development -rw-rw-r-- 1 root root 72582 Aug 4 10:28 php.ini-production -rw-rw-r-- 1 root root 4712 Aug 4 10:28 README.md -rw-rw-r-- 1 root root 29589 Aug 4 10:28 README.REDIST.BINS -rwxrwxr-x 1 root root 126747 Aug 4 10:28 run-tests.php drwxrwxr-x 9 root root 4096 Aug 4 10:28 sapi drwxrwxr-x 4 root root 4096 Aug 13 10:09 scripts drwxrwxr-x 10 root root 4096 Aug 4 10:28 tests drwxrwxr-x 2 root root 4096 Aug 4 10:28 travis -rw-rw-r-- 1 root root 2613 Aug 4 10:28 .travis.yml drwxrwxr-x 3 root root 4096 Aug 12 15:00 TSRM -rw-rw-r-- 1 root root 34344 Aug 4 10:28 UPGRADING -rw-rw-r-- 1 root root 15789 Aug 4 10:28 UPGRADING.INTERNALS drwxrwxr-x 3 root root 4096 Aug 4 10:28 win32 drwxrwxr-x 4 root root 12288 Aug 12 15:02 Zend Kai