Bug#307567: apache2-common: Apache2 consumes 100% CPU after a few requests
> Maybe also a gdb backtrace? (LD_LIBRARY_PATH=/usr/lib/debug gdb -p
> <pid>); you should first install the package libc6-dbg, if possible.
> If not, then don't set LD_LIBRARY_PATH. It will at least tell us if
> the stack is still sane, or if there has been memory corruption.
Here is the GDB trace. I hope it may provide some useful info.
Before I received your email, I tried to get the same trace, without the libc6-dbg, and it shows the process was stalled
in "mallopt"
I run it on a second session, and the backtrace is identical.
$> sudo -s
root@anciens:~
$> LD_LIBRARY_PATH=/usr/lib/debug gdb -p 24869
GNU gdb 6.3-debian
Copyright 2004 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
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This GDB was configured as "i386-linux".
Attaching to process 24869
Using host libthread_db library "/usr/lib/debug/libthread_db.so.1".
Reading symbols from /usr/sbin/apache2...(no debugging symbols found)...done.
Reading symbols from /lib/libcrypt.so.1...Reading symbols from /usr/lib/debug/lib/libcrypt-2.3.2.so...(no debugging
symbols found)...done.
(no debugging symbols found)...done.
Loaded symbols for /lib/libcrypt.so.1
Reading symbols from /usr/lib/libpcre.so.3...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libpcre.so.3
Reading symbols from /usr/lib/libz.so.1...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libz.so.1
Reading symbols from /usr/lib/i686/cmov/libssl.so.0.9.7...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/i686/cmov/libssl.so.0.9.7
Reading symbols from /usr/lib/i686/cmov/libcrypto.so.0.9.7...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/i686/cmov/libcrypto.so.0.9.7
Reading symbols from /lib/libdl.so.2...Reading symbols from /usr/lib/debug/lib/libdl-2.3.2.so...(no debugging symbols
found)...done.
(no debugging symbols found)...done.
Loaded symbols for /lib/libdl.so.2
Reading symbols from /usr/lib/libaprutil-0.so.0...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libaprutil-0.so.0
Reading symbols from /usr/lib/libldap.so.2...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libldap.so.2
Reading symbols from /usr/lib/liblber.so.2...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/liblber.so.2
Reading symbols from /usr/lib/libdb-4.2.so...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libdb-4.2.so
Reading symbols from /usr/lib/libexpat.so.1...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libexpat.so.1
Reading symbols from /usr/lib/libapr-0.so.0...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libapr-0.so.0
Reading symbols from /lib/librt.so.1...Reading symbols from /usr/lib/debug/lib/librt-2.3.2.so...(no debugging symbols
found)...done.
(no debugging symbols found)...done.
Loaded symbols for /lib/librt.so.1
Reading symbols from /lib/libm.so.6...Reading symbols from /usr/lib/debug/lib/libm-2.3.2.so...(no debugging symbols
found)...done.
(no debugging symbols found)...done.
Loaded symbols for /lib/libm.so.6
Reading symbols from /lib/libnsl.so.1...Reading symbols from /usr/lib/debug/lib/libnsl-2.3.2.so...(no debugging symbols
found)...done.
(no debugging symbols found)...done.
Loaded symbols for /lib/libnsl.so.1
Reading symbols from /lib/libpthread.so.0...Reading symbols from /usr/lib/debug/lib/libpthread-0.10.so...(no debugging
symbols found)...done.
[Thread debugging using libthread_db enabled]
[New Thread 16384 (LWP 24869)]
(no debugging symbols found)...done.
Loaded symbols for /lib/libpthread.so.0
Reading symbols from /lib/libc.so.6...Reading symbols from /usr/lib/debug/lib/libc-2.3.2.so...(no debugging symbols
found)...done.
(no debugging symbols found)...done.
Loaded symbols for /lib/libc.so.6
Reading symbols from /lib/ld-linux.so.2...Reading symbols from /usr/lib/debug/lib/ld-2.3.2.so...(no debugging symbols
found)...done.
(no debugging symbols found)...done.
Loaded symbols for /lib/ld-linux.so.2
Reading symbols from /lib/libresolv.so.2...Reading symbols from /usr/lib/debug/lib/libresolv-2.3.2.so...(no debugging
symbols found)...done.
(no debugging symbols found)...done.
Loaded symbols for /lib/libresolv.so.2
Reading symbols from /usr/lib/libsasl2.so.2...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libsasl2.so.2
Reading symbols from /usr/lib/libgnutls.so.11...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libgnutls.so.11
Reading symbols from /usr/lib/libtasn1.so.2...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libtasn1.so.2
Reading symbols from /usr/lib/libgcrypt.so.11...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libgcrypt.so.11
Reading symbols from /usr/lib/libgpg-error.so.0...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libgpg-error.so.0
Reading symbols from /lib/libnss_compat.so.2...Reading symbols from /usr/lib/debug/lib/libnss_compat-2.3.2.so...(no
debugging symbols found)...done.
(no debugging symbols found)...done.
Loaded symbols for /lib/libnss_compat.so.2
Reading symbols from /lib/libnss_nis.so.2...Reading symbols from /usr/lib/debug/lib/libnss_nis-2.3.2.so...
(no debugging symbols found)...done.
(no debugging symbols found)...done.
Loaded symbols for /lib/libnss_nis.so.2
Reading symbols from /lib/libnss_files.so.2...Reading symbols from /usr/lib/debug/lib/libnss_files-2.3.2.so...(no
debugging symbols found)...done.
(no debugging symbols found)...done.
Loaded symbols for /lib/libnss_files.so.2
Reading symbols from /usr/lib/apache2/modules/mod_ldap.so...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/apache2/modules/mod_ldap.so
Reading symbols from /usr/lib/apache2/modules/mod_auth_ldap.so...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/apache2/modules/mod_auth_ldap.so
Reading symbols from /usr/lib/apache2/modules/libphp5.so...done.
Loaded symbols for /usr/lib/apache2/modules/libphp5.so
Reading symbols from /usr/lib/libmysqlclient.so.10...done.
Loaded symbols for /usr/lib/libmysqlclient.so.10
Reading symbols from /usr/lib/libxml2.so.2...done.
Loaded symbols for /usr/lib/libxml2.so.2
Reading symbols from /usr/lib/apache2/modules/mod_cgi.so...done.
Loaded symbols for /usr/lib/apache2/modules/mod_cgi.so
Reading symbols from /usr/lib/apache2/modules/mod_dav.so...done.
Loaded symbols for /usr/lib/apache2/modules/mod_dav.so
Reading symbols from /usr/lib/apache2/modules/mod_dav_fs.so...done.
Loaded symbols for /usr/lib/apache2/modules/mod_dav_fs.so
Reading symbols from /usr/lib/apache2/modules/mod_dav_svn.so...done.
Loaded symbols for /usr/lib/apache2/modules/mod_dav_svn.so
Reading symbols from /usr/lib/libsvn_repos-1.so.0...done.
Loaded symbols for /usr/lib/libsvn_repos-1.so.0
Reading symbols from /usr/lib/libsvn_fs-1.so.0...done.
Loaded symbols for /usr/lib/libsvn_fs-1.so.0
Reading symbols from /usr/lib/libsvn_delta-1.so.0...done.
Loaded symbols for /usr/lib/libsvn_delta-1.so.0
Reading symbols from /usr/lib/libsvn_subr-1.so.0...done.
Loaded symbols for /usr/lib/libsvn_subr-1.so.0
Reading symbols from /usr/lib/libsvn_fs_fs-1.so.0...done.
Loaded symbols for /usr/lib/libsvn_fs_fs-1.so.0
Reading symbols from /usr/lib/libsvn_fs_base-1.so.0...done.
Loaded symbols for /usr/lib/libsvn_fs_base-1.so.0
Reading symbols from /usr/lib/apache2/modules/mod_authz_svn.so...done.
Loaded symbols for /usr/lib/apache2/modules/mod_authz_svn.so
Reading symbols from /usr/lib/apache2/modules/mod_info.so...done.
Loaded symbols for /usr/lib/apache2/modules/mod_info.so
Reading symbols from /usr/lib/apache2/modules/mod_python.so...done.
Loaded symbols for /usr/lib/apache2/modules/mod_python.so
Reading symbols from /usr/lib/libpython2.3.so.1.0...done.
Loaded symbols for /usr/lib/libpython2.3.so.1.0
Reading symbols from /lib/libutil.so.1...Reading symbols from /usr/lib/debug/lib/libutil-2.3.2.so...done.
done.
Loaded symbols for /lib/libutil.so.1
Reading symbols from /usr/lib/apache2/modules/mod_rewrite.so...done.
Loaded symbols for /usr/lib/apache2/modules/mod_rewrite.so
Reading symbols from /usr/lib/apache2/modules/mod_ssl.so...done.
Loaded symbols for /usr/lib/apache2/modules/mod_ssl.so
Reading symbols from /usr/lib/apache2/modules/mod_userdir.so...done.
Loaded symbols for /usr/lib/apache2/modules/mod_userdir.so
Reading symbols from /usr/lib/sasl2/libotp.so.2...done.
Loaded symbols for /usr/lib/sasl2/libotp.so.2
Reading symbols from /usr/lib/sasl2/libsasldb.so.2...done.
Loaded symbols for /usr/lib/sasl2/libsasldb.so.2
Reading symbols from /usr/lib/sasl2/libntlm.so.2...done.
Loaded symbols for /usr/lib/sasl2/libntlm.so.2
Reading symbols from /usr/lib/sasl2/libplain.so.2...done.
Loaded symbols for /usr/lib/sasl2/libplain.so.2
Reading symbols from /usr/lib/sasl2/liblogin.so.2...done.
Loaded symbols for /usr/lib/sasl2/liblogin.so.2
Reading symbols from /usr/lib/sasl2/libdigestmd5.so.2...done.
Loaded symbols for /usr/lib/sasl2/libdigestmd5.so.2
Reading symbols from /usr/lib/sasl2/libcrammd5.so.2...done.
Loaded symbols for /usr/lib/sasl2/libcrammd5.so.2
Reading symbols from /usr/lib/sasl2/libanonymous.so.2...done.
Loaded symbols for /usr/lib/sasl2/libanonymous.so.2
Reading symbols from /usr/lib/python2.3/site-packages/_iconv_codec.so...done.
Loaded symbols for /usr/lib/python2.3/site-packages/_iconv_codec.so
Reading symbols from /usr/lib/gconv/ISO8859-1.so...Reading symbols from /usr/lib/debug/usr/lib/gconv/ISO8859-1.so...done.
done.
Loaded symbols for /usr/lib/gconv/ISO8859-1.so
0x4041ee52 in _int_malloc () from /lib/libc.so.6
(gdb) backtrace
#0 0x4041ee52 in _int_malloc () from /lib/libc.so.6
#1 0x4041dfb3 in malloc () from /lib/libc.so.6
#2 0x080865ff in ap_regexec ()
#3 0x08064a2e in _start ()
#4 0x081d2890 in ?? ()
#5 0x083dde7c in ?? ()
#6 0x0000000a in ?? ()
#7 0xbffffbe0 in ?? ()
#8 0x00000000 in ?? ()
#9 0x083ddec6 in ?? ()
#10 0xbffffc08 in ?? ()
#11 0x40302a92 in apr_parse_addr_port () from /usr/lib/libapr-0.so.0
#12 0x08089445 in ap_run_post_read_request ()
#13 0x080883f1 in ap_read_request ()
#14 0x08065088 in _start ()
#15 0x08303410 in ?? ()
#16 0x00000003 in ?? ()
#17 0x00000000 in ?? ()
#18 0x0808373c in ap_run_pre_connection ()
#19 0x080835f5 in ap_run_process_connection ()
#20 0x080769d4 in ap_graceful_stop_signalled ()
#21 0x08076b27 in ap_graceful_stop_signalled ()
#22 0x08076c48 in ap_graceful_stop_signalled ()
#23 0x080774ba in ap_mpm_run ()
#24 0x0807dabd in main ()
(gdb) quit
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