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[2001-10-21 06:38 UTC] brian at spamcop dot net
With this code (via Rasmus/php-general): <http://www.php.net/~rasmus/reductor.php> <html> <body bgcolor="#000000"> <font color=#ffffff>Original Image:</font><img src="php.png" align=middle><br clear=left> <?php if(!$ch) $ch='$'; $im = ImageCreateFromPNG('./php.png'); $output = " "; for($y=0;$y<imagesy($im);$y++) { for($x=0;$x<imagesx($im);$x++) { $color = ImageColorsForIndex($im,ImageColorAt($im, $x, $y)); echo "<font size=\"1\" color=\"#"; echo printf("%02x%02x%02x",$color['red'],$color['green'],$color['blue']); echo "\">$ch</font>"; } echo "<br>\n"; } ?> </body></html> Apache stops responding; Nothing is displayed, not even an error. Apache must be restarted to bring it back to life. In the error_log, one sees: [Sun Oct 21 06:10:03 2001] [notice] child pid 28635 exit signal Segmentation fault (11) [Sun Oct 21 06:10:03 2001] [notice] child pid 28634 exit signal Segmentation fault (11) Etc... My php 4.0.6 configure line: ./configure \ --with-config-file-path=/var/www/conf \ --with-gd=/usr/local \ --with-jpeg-dir=/usr/local \ --with-png-dir=/usr/local/ \ --with-tiff-dir=/usr/local \ --with-zlib-dir=/usr \ --with-zlib=/usr \ --with-ttf=/usr/local \ --with-t1lib=/usr/local \ --with-mysql=/usr \ --with-mcrypt=/usr/local \ --with-pdflib=/usr/local \ --with-bz2=/usr/local \ --with-zip=/usr/local \ --with-pspell=/usr/local \ --with-curl=/usr/local \ --with-dom=/usr \ --with-xml \ --enable-magic-quotes \ --enable-ftp \ --with-apache=../apache_1.3.22 > ~root/php_configure.log My Apache 1.3.22 configure line: ./configure \ --prefix=/var/www \ --mandir=/usr/local/man \ --server-uid=www \ --server-gid=www \ --libexecdir=/var/www/modules \ --enable-module=rewrite \ --enable-module=so \ --enable-shared=speling \ --enable-module=ssl \ --activate-module=src/modules/php4/libphp4.a \ --activate-module=src/modules/perl/libperl.a I listed this as graphics related, but I really don't know if it really is. -Brian PatchesPull RequestsHistoryAllCommentsChangesGit/SVN commits
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And finally, a backtrace having enabled debugging: % gdb --quiet /var/www/bin/httpd (gdb) run -X Starting program: /var/www/bin/httpd -X Program received signal SIGSEGV, Segmentation fault. 0x999 in ?? () (gdb) bt #0 0x999 in ?? () #1 0x4016e058 in png_create_info_struct () from /usr/local/lib/libpng.so.3 #2 0x823ffbc in gdImageCreateFromPngCtx () #3 0x823feff in gdImageCreateFromPng () #4 0x80fb910 in _php_image_create_from (ht=1, return_value=0x84bab8c, this_ptr=0x0, return_value_used=1, image_type=2, tn=0x82fb30b "PNG", func_p=0x823fee0 <gdImageCreateFromPng>, ioctx_func_p=0x823ff20 <gdImageCreateFromPngCtx>) at gd.c:1182 #5 0x80fba3c in zif_imagecreatefrompng (ht=1, return_value=0x84bab8c, this_ptr=0x0, return_value_used=1) at gd.c:1229 #6 0x81e421a in execute (op_array=0x84b6544) at ./zend_execute.c:1598 #7 0x81be8a9 in zend_execute_scripts (type=8, retval=0x0, file_count=3) at zend.c:814 #8 0x80e4f11 in php_execute_script (primary_file=0xbffff588) at main.c:1310 #9 0x81cab8c in apache_php_module_main (r=0x83b981c, display_source_mode=0) at sapi_apache.c:90 #10 0x80e1346 in send_php () #11 0x80e13a6 in send_parsed_php () #12 0x81eed39 in ap_invoke_handler () #13 0x8204dcf in process_request_internal () #14 0x8204e42 in ap_process_request () #15 0x81fb926 in child_main () #16 0x81fbb05 in make_child () #17 0x81fbc86 in startup_children () #18 0x81fc32d in standalone_main () #19 0x81fcbac in main () #20 0x4034bc6f in __libc_start_main () from /lib/libc.so.6 (gdb)