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malloc returning NULL if freemem high & swapmem low (MPRAS version 3.03 )
Post 302219545 by Ritesh Kumar on Tuesday 29th of July 2008 12:07:57 PM
07-29-2008
malloc returning NULL if freemem high & swapmem low (MPRAS version 3.03 )
Hi All,
In my application malloc is returning NULL even though there is sufficient amount of free memory available but the swap memory is low.
Is this possible that, if free memory is high & swap memory is low, malloc will not be able to allocate memory & return NULL ?
Few details:
my system running on a x86 platform
2 Pentium III processors
MPRAS version 3.03
output of OS level and current kernel patch level 03.03.02.15
Commands I used to measure free memory and swap :
[ app001-0 root:/ ] sar -r 1 10
app001-0 app001-0 4.2 3.3 SDS2 06/03/08
06:56:32 freemem freeswp
06:56:33 513222 10197
06:56:34 513205 10197
06:56:35 513210 10197
06:56:36 513210 10197
06:56:37 513231 10197
06:56:38 513271 10197
06:56:39 513271 10197
06:56:40 513268 10197
06:56:41 513258 10197
06:56:42 513258 10197
Kindly look into the issue as I am not able to start my application in the above mentioned condition.
Thanks & Regards,
Ritesh
In my application malloc is returning NULL even though there is sufficient amount of free memory available but the swap memory is low.
Is this possible that, if free memory is high & swap memory is low, malloc will not be able to allocate memory & return NULL ?
Few details:
my system running on a x86 platform
2 Pentium III processors
MPRAS version 3.03
output of OS level and current kernel patch level 03.03.02.15
Commands I used to measure free memory and swap :
[ app001-0 root:/ ] sar -r 1 10
app001-0 app001-0 4.2 3.3 SDS2 06/03/08
06:56:32 freemem freeswp
06:56:33 513222 10197
06:56:34 513205 10197
06:56:35 513210 10197
06:56:36 513210 10197
06:56:37 513231 10197
06:56:38 513271 10197
06:56:39 513271 10197
06:56:40 513268 10197
06:56:41 513258 10197
06:56:42 513258 10197
Kindly look into the issue as I am not able to start my application in the above mentioned condition.
Thanks & Regards,
Ritesh
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LEARN ABOUT DEBIAN
colorgccrc
COLORGCCRC(5) File Formats Manual COLORGCCRC(5) NAME
colorgccrc - configuration file for colorgcc DESCRIPTION
A colorgccrc configuration file is used to configure the highlighting of the compiler output from colorgcc. SYNTAX
Each line consists of a keyword designating a configuration variable. The keyword is followed by `:' and then one or several values (depending on the keyword). Lines beginning with a hash mark `#' are comments. CONFIGURATION VARIABLES
g++ | gcc | c++ | cc | g77 | gcj | gnat | gpc Specifies the paths to the compilers. Takes one value; a path to the compiler. nocolor Specifies what terminal types colorization should be disabled on. Takes one or several values, separated by whitespace. srcColor Specifies the highlighting attributes source-code should be given. Takes one or several color attributes. See the section COLOR ATTRIBUTES for more information. introColor Specifies the highlighting attributes for normal compiler output. Takes one or several color attributes. See the section COLOR ATTRIBUTES for more information. warningFileNameColor | errorFileNameColor Specifies the highlighting attributes for the filename in a warning or an error, respectively. Takes one or several color attributes. See the section COLOR ATTRIBUTES for more information. warningNumberColor | errorNumberColor Specifies the highlighting attributes for the line-number in a warning or an error, respectively. Takes one or several color attributes. See the section COLOR ATTRIBUTES for more information. warningMessageColor | errorMessageColor Specifies the highlighting attributes for the message-text in a warning or an error, respectively. Takes one or several color attributes. See the section COLOR ATTRIBUTES for more information. COLOR ATTRIBUTES
The following attributes are valid for highlighting. clear, reset bold, underline, underscore, blink, reverse, concealed black, red, green, yellow, blue, magenta, cyan, white on_black, on_red, on_green, on_yellow, on_blue, on_magenta, on_cyan, on_white SEE ALSO
gcc(1), colorgcc(1) HISTORY
Jan 15 2003: Initial version of this manual-page. REPORTING BUGS
Report bugs to <jmoyers@geeks.com> AUTHORS
Jamie Moyers <jmoyers@geeks.com> is the author of colorgcc. This manual page was written by Joe Wreschnig <piman@sacredchao.net>, and modified by David Weinehall <tao@debian.org>, for the Debian GNU/Linux system (but may be used by others). COPYRIGHT
Copyright (C) 2003 Jamie Moyers This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU- LAR PURPOSE. Jan 15, 2003 COLORGCCRC(5)