#4221 cachemgr.cgi Error - Bad Header
Error - Bad Header when accessing Cache Manager Statistics
Using Ubuntu Server 12.04.2, Webmin version 1.620 (deb) and Squid3.1
[17/Apr/2013:13:11:30 +0100] [192.168.168.67] /squid/cachemgr.cgi : Bad Header
Use of uninitialized value in numeric gt (>) at ./webminlog-lib.pl line 361.
Use of uninitialized value $webminlog::in{"desc"} in pattern match (m//) at /usr/share/webmin/webminlog/search.cgi line 109, <LOG> line 1.
Use of uninitialized value $webminlog::in{"desc"} in pattern match (m//) at /usr/share/webmin/webminlog/search.cgi line 109, <LOG> line 2.
Use of uninitialized value $webminlog::in{"desc"} in pattern match (m//) at /usr/share/webmin/webminlog/search.cgi line 109, <LOG> line 3.
Use of uninitialized value $webminlog::in{"desc"} in pattern match (m//) at /usr/share/webmin/webminlog/search.cgi line 109, <LOG> line 4.
Use of uninitialized value $webminlog::in{"desc"} in pattern match (m//) at /usr/share/webmin/webminlog/search.cgi line 109, <LOG> line 5.
Use of uninitialized value $webminlog::in{"desc"} in pattern match (m//) at /usr/share/webmin/webminlog/search.cgi line 109, <LOG> line 6.
Use of uninitialized value $webminlog::in{"desc"} in pattern match (m//) at /usr/share/webmin/webminlog/search.cgi line 109, <LOG> line 7.
Use of uninitialized value $webminlog::in{"desc"} in pattern match (m//) at /usr/share/webmin/webminlog/search.cgi line 109, <LOG> line 8.
Use of uninitialized value $module in string eq at /usr/share/webmin/webminlog/search.cgi line 71, <LOG> line 8.
Use of uninitialized value $module in string eq at /usr/share/webmin/webminlog/search.cgi line 71, <LOG> line 8.
Use of uninitialized value $webminlog::in{"desc"} in pattern match (m//) at /usr/share/webmin/webminlog/search.cgi line 109, <LOG> line 9.
Use of uninitialized value $webminlog::in{"desc"} in pattern match (m//) at /usr/share/webmin/webminlog/search.cgi line 109, <LOG> line 10.
Use of uninitialized value $webminlog::in{"desc"} in pattern match (m//) at /usr/share/webmin/webminlog/search.cgi line 109, <LOG> line 11.
Use of uninitialized value $webminlog::in{"desc"} in pattern match (m//) at /usr/share/webmin/webminlog/search.cgi line 109, <LOG> line 12.
Use of uninitialized value $webminlog::in{"desc"} in pattern match (m//) at /usr/share/webmin/webminlog/search.cgi line 109, <LOG> line 13.
Use of uninitialized value $webminlog::in{"desc"} in pattern match (m//) at /usr/share/webmin/webminlog/search.cgi line 109, <LOG> line 14.
Use of uninitialized value $webminlog::in{"desc"} in pattern match (m//) at /usr/share/webmin/webminlog/search.cgi line 109, <LOG> line 15.
Use of uninitialized value $webminlog::in{"desc"} in pattern match (m//) at /usr/share/webmin/webminlog/search.cgi line 109, <LOG> line 16.
Use of uninitialized value $webminlog::in{"desc"} in pattern match (m//) at /usr/share/webmin/webminlog/search.cgi line 109, <LOG> line 17.
Use of uninitialized value $webminlog::in{"desc"} in pattern match (m//) at /usr/share/webmin/webminlog/search.cgi line 109, <LOG> line 18.
Use of uninitialized value $module in string eq at /usr/share/webmin/webminlog/search.cgi line 71, <LOG> line 18.
Error: No events to log selected
Use of uninitialized value in numeric gt (>) at /usr/share/webmin/webmin/webmin-lib.pl line 1150.
*** glibc detected *** /usr/lib/cgi-bin/cachemgr.cgi: free(): invalid pointer: 0x00007fc302255800 ***
Looks like the real error is from the last line - cachemgr.cgi crashed due to an invalid free() function call!
If you run /usr/lib/cgi-bin/cachemgr.cgi from the command line , does it output anything?