[Bug 63687] High Memory usage after upgrade to 2.4.41

[bugzilla]

https://bz.apache.org/bugzilla/show_bug.cgi?id=63687

--- Comment #22 from Ruediger Pluem  ---
(In reply to nitop from comment #21)
> Someone else should debug this.
> We've some hugh dependencies here and can not get >= gdb7.2 with python2.7
> to work.

Just for the sake of completeness: My GDB 7.2 uses Python 2.6 as this is what
my Centos 6 delivers as OS package.

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[Bug 60846] PR34014 / r903052 changed date format for autoindex

[bugzilla]

https://bz.apache.org/bugzilla/show_bug.cgi?id=60846

--- Comment #21 from Allen Watson  ---
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[Bug 63687] High Memory usage after upgrade to 2.4.41

[bugzilla]

https://bz.apache.org/bugzilla/show_bug.cgi?id=63687

--- Comment #21 from nitop  ---
Someone else should debug this.
We've some hugh dependencies here and can not get >= gdb7.2 with python2.7 to
work.

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[Bug 63687] High Memory usage after upgrade to 2.4.41

[bugzilla]

https://bz.apache.org/bugzilla/show_bug.cgi?id=63687

--- Comment #20 from Ruediger Pluem  ---
(In reply to nitop from comment #18)
> I am now running gdb 7.2 and tried it again:

> warning: no loadable sections found in added symbol-file system-supplied DSO
> at 0x7ffd92a92000
> 0x7f7bcee85303 in select () from /lib/libc.so.6
> .gdbinit:548: Error in sourced command file:
> Python scripting is not supported in this copy of GDB.
> (gdb) dump_all_pools
> Undefined command: "dump_pool_and_children".  Try "help".

This gdb does not have Python scripting enabled.
How did you get this gdb 7.2? Did you compile it on your own or did you
download it from somewhere? If you compile it on your own you need to specify
--with-python to the configure script of gdb. Of cause this requires Python to
be available on your system. Not sure how these Python packages are named in
Debian.

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[Bug 63687] High Memory usage after upgrade to 2.4.41

[bugzilla]

https://bz.apache.org/bugzilla/show_bug.cgi?id=63687

--- Comment #19 from nitop  ---
We can not continue with debugging because of larger dependencies (gdb, python,
...)

Can someone else debug that with the same problem?

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[Bug 63687] High Memory usage after upgrade to 2.4.41

[bugzilla]

https://bz.apache.org/bugzilla/show_bug.cgi?id=63687

--- Comment #18 from nitop  ---
I am now running gdb 7.2 and tried it again:

/usr/local/bin/gdb apache2 29505 
GNU gdb (GDB) 7.2
Copyright (C) 2010 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later 
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-unknown-linux-gnu".
For bug reporting instructions, please see:
...
Reading symbols from /usr/sbin/apache2...done.
Attaching to program: /usr/sbin/apache2, process 29505
Reading symbols from /lib/libpcre.so.3...(no debugging symbols found)...done.
Loaded symbols for /lib/libpcre.so.3
Reading symbols from /usr/lib/libaprutil-1.so.0...done.
Loaded symbols for /usr/lib/libaprutil-1.so.0
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-1.so.0...done.
Loaded symbols for /usr/lib/libapr-1.so.0
Reading symbols from /lib/librt.so.1...(no debugging symbols found)...done.
Loaded symbols for /lib/librt.so.1
Reading symbols from /lib/libcrypt.so.1...(no debugging symbols found)...done.
Loaded symbols for /lib/libcrypt.so.1
Reading symbols from /lib/libpthread.so.0...(no debugging symbols
found)...done.
[Thread debugging using libthread_db enabled]
Loaded symbols for /lib/libpthread.so.0
Reading symbols from /lib/libdl.so.2...(no debugging symbols found)...done.
Loaded symbols for /lib/libdl.so.2
Reading symbols from /lib/libc.so.6...(no debugging symbols found)...done.
Loaded symbols for /lib/libc.so.6
Reading symbols from /lib64/ld-linux-x86-64.so.2...(no debugging symbols
found)...done.
Loaded symbols for /lib64/ld-linux-x86-64.so.2
Reading symbols from /lib/libnss_compat.so.2...(no debugging symbols
found)...done.
Loaded symbols for /lib/libnss_compat.so.2
Reading symbols from /lib/libnsl.so.1...(no debugging symbols found)...done.
Loaded symbols for /lib/libnsl.so.1
Reading symbols from /lib/libnss_nis.so.2...(no debugging symbols
found)...done.
Loaded symbols for /lib/libnss_nis.so.2
Reading symbols from /lib/libnss_files.so.2...(no debugging symbols
found)...done.
Loaded symbols for /lib/libnss_files.so.2


warning: no loadable sections found in added symbol-file system-supplied DSO at
0x7ffd92a92000
0x7f7bcee85303 in select () from /lib/libc.so.6
.gdbinit:548: Error in sourced command file:
Python scripting is not supported in this copy of GDB.
(gdb) dump_all_pools
Undefined command: "dump_pool_and_children".  Try "help".

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[Bug 63687] High Memory usage after upgrade to 2.4.41

[bugzilla]

https://bz.apache.org/bugzilla/show_bug.cgi?id=63687

--- Comment #17 from Ruediger Pluem  ---
(In reply to nitop from comment #16)
> @RuedigerPluem
> 
> Here are the errors with your ".gdbinit":
> gdb apache2 16606
> Reading symbols from /usr/sbin/apache2...done.
> Attaching to program: /usr/sbin/apache2, process 16606
> 
> warning: no loadable sections found in added symbol-file system-supplied DSO
> at 0x7fffc77fa000
> 0x7fc035f1b303 in ?? ()
> Traceback (most recent call last):
>   File "", line 78, in 
>   File "", line 8, in __init__
> AttributeError: 'module' object has no attribute 'COMMAND_USER'
> /usr/local/src/mni/.gdbinit:548: Error in sourced command file:
> Error while executing Python code.

I cannot fix this. You would need to use a higher version of gdb in this case.
Unfortunately the Python code in .gdbinit is essential for debugging your
issue.

> 
> "Yes, you need the debugging symbols to extract the proper information from
> the process."
> 
> -> Did you mean the flag "--enable-maintainer-mode"?

That would be one way. Another less strict one is to

export CFLAGS="-Wall -O2 -g"

before you run the configure script.

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[Bug 63687] High Memory usage after upgrade to 2.4.41

[bugzilla]

https://bz.apache.org/bugzilla/show_bug.cgi?id=63687

--- Comment #16 from nitop  ---
@RuedigerPluem

Here are the errors with your ".gdbinit":
gdb apache2 16606
Reading symbols from /usr/sbin/apache2...done.
Attaching to program: /usr/sbin/apache2, process 16606

warning: no loadable sections found in added symbol-file system-supplied DSO at
0x7fffc77fa000
0x7fc035f1b303 in ?? ()
Traceback (most recent call last):
  File "", line 78, in 
  File "", line 8, in __init__
AttributeError: 'module' object has no attribute 'COMMAND_USER'
/usr/local/src/mni/.gdbinit:548: Error in sourced command file:
Error while executing Python code.

"Yes, you need the debugging symbols to extract the proper information from the
process."

-> Did you mean the flag "--enable-maintainer-mode"?

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[Bug 63687] High Memory usage after upgrade to 2.4.41

[bugzilla]

https://bz.apache.org/bugzilla/show_bug.cgi?id=63687

--- Comment #15 from Ruediger Pluem  ---
(In reply to nitop from comment #14)
> @RuedigerPluem
> "Have you compiled your Apache with debugging symbols?"
> 
> No. Is this necessary to go on with gdb?

Yes, you need the debugging symbols to extract the proper information from the
process.

> 
> "Are you able to attach to such a memory consuming process with gdb?"
> 
> I've not tried it yet. How should I do this?

http://httpd.apache.org/dev/debugging.html#backtrace

> I can not use your .gdbinit, it outputs some errors - we have an old debian
> here and gdb 7.0.1.

This is bad. The lowest version I tested the .gdbinit with was with 7.2. What
are the error messages?

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[Bug 63687] High Memory usage after upgrade to 2.4.41

[bugzilla]

https://bz.apache.org/bugzilla/show_bug.cgi?id=63687

--- Comment #14 from nitop  ---
@RuedigerPluem
"Have you compiled your Apache with debugging symbols?"

No. Is this necessary to go on with gdb?

"Are you able to attach to such a memory consuming process with gdb?"

I've not tried it yet. How should I do this?
I can not use your .gdbinit, it outputs some errors - we have an old debian
here and gdb 7.0.1.

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