|Summary:||mod_substitute doesn't work if more than one substitute is specified with default options|
|Component:||mod_substitute||Assignee:||Apache HTTPD Bugs Mailing List <bugs>|
Description avpauls 2009-05-18 04:20:51 UTC
OS: RHEL5.3 i386/x86_64 httpd-2.2.11 From httpd.conf: LoadModule substitute_module modules/mod_substitute.so <Location /> AddOutputFilterByType SUBSTITUTE text/html Substitute "s|you|you+|" Substitute "s|HTTP|HTTP+|" </Location> [root@test-el5-x86_64 apache]# wget http://10.60.180.30/ --18:13:23-- http://10.60.180.30/ Connecting to 10.60.180.30:80... connected. HTTP request sent, awaiting response... No data received. httpd process eats all available memory and exit with segmentation fault: [Mon May 18 16:30:33 2009] [notice] child pid 13757 exit signal Segmentation fault (11), possible coredump in /tmp If I use 'q' flag all works fine: LoadModule substitute_module modules/mod_substitute.so <Location /> AddOutputFilterByType SUBSTITUTE text/html Substitute "s|you|you+|q" Substitute "s|HTTP|HTTP+|q" </Location> httpd.conf, strace log, core file will be attached.
Comment 3 avpauls 2009-05-18 04:34:38 UTC
Created attachment 23681 [details] httpd.spec httpd was built using attached spec file
Comment 5 Ruediger Pluem 2009-05-18 09:37:34 UTC
Can you please also supply the html file that can be found at http://10.60.180.30/?
Comment 6 avpauls 2009-05-18 21:14:17 UTC
Created attachment 23686 [details] index.html Really every file with substituted strings will cause described behavior.
Comment 7 Ruediger Pluem 2009-05-21 12:19:46 UTC
Sorry but I cannot reproduce this. What is the contents of /var/www/error/noindex.html? The core dump isn't really helpful as it is very machine specific. Could you please analyse it on the machine where the crash happened and provide a backtrace?
Comment 8 avpauls 2009-05-21 21:07:14 UTC
Backtrace is not very informative (and all this information can be taken from "strace result"): ... Loaded symbols for /lib64/libwrap.so.0 Reading symbols from /usr/lib64/php4/xmlrpc.so...done. Loaded symbols for /usr/lib64/php4/xmlrpc.so Core was generated by `/usr/sbin/httpd'. Program terminated with signal 11, Segmentation fault. [New process 21731] #0 0x00002b0a07f59477 in memcpy () from /lib64/libc.so.6 (gdb) bt #0 0x00002b0a07f59477 in memcpy () from /lib64/libc.so.6 Cannot access memory at address 0x7fffa4aeec78 (gdb) backtrace for RHEL5 i386, RHES4 i386 looks the same. What other info can I provide ?
Comment 9 avpauls 2009-05-21 21:10:05 UTC
Created attachment 23704 [details] noindex.html as requested, but i've already said that for me this issue is reproduced on every file with substituted strings
Comment 10 avpauls 2009-06-02 00:17:53 UTC
Is some other info required ?