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Full Discussion: Trace "free(): invalid next size (normal)" error on arm-linux board
Top Forums UNIX for Advanced & Expert Users Trace "free(): invalid next size (normal)" error on arm-linux board Post 302521727 by ss1969 on Thursday 12th of May 2011 05:51:32 AM
Old 05-12-2011
Network Trace "free(): invalid next size (normal)" error on arm-linux board
Hi guys,

i'm running a program on samsumg 6410 arm cpu board. it caused an "free(): invalid next size (normal)" fail.

i try to use gdb for remote debugging:
1, start gdb server on board:
Code:
gdbserver 192.168.1.20:1234 ./HostAP 
Process ./HostAP created; pid = 499
Listening on port 1234
Remote debugging from host 192.168.1.177

2, using gdb on linux to connect, then run;

3, i got this on my console of 6410 board:
Code:
*** glibc detected *** ./HostAP: free(): invalid next size (normal): 0x0010f060 ***

4, i got this on my linux machine terminal: (hand type in..)
Code:
Program received signal SIGABRT, Aborted
[Switching to Thread 503]
0x42ade490 in ?? ()

5, i type "backtrace" command, but got this:
Code:
#0 0x42ade490 in ?? ()
Cannot access memory at address 0xa


So, i'm strucked here.. and don't know how to continue the debugging ...

any advice will be appreciated.

thanks in advance.

ss1969
 

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LEARN ABOUT DEBIAN

arm

arm(1)							      General Commands Manual							    arm(1)

NAME

       arm - Terminal Tor status monitor

SYNOPSIS

       arm [OPTION]

DESCRIPTION

       The  anonymizing  relay	monitor (arm) is a terminal status monitor for Tor relays, intended for command-line aficionados, ssh connections,
       and anyone stuck with a tty terminal. This works much like top does for system usage, providing real time statistics for:
	 * bandwidth, cpu, and memory usage
	 * relay's current configuration
	 * logged events
	 * connection details (ip, hostname, fingerprint, and consensus data)
	 * etc

       Defaults and interface properties are configurable via a user provided configuration file (for an example see the  provided  armrc.sample).
       Releases and information are available at http://www.atagar.com/arm.

OPTIONS

       -i, --interface [ADDRESS:]PORT
	      tor control port arm should attach to (default is 127.0.0.1:9051)

       -c, --config CONFIG_PATH
	      user provided configuration file (default is ~/.arm/armrc)

       -d, --debug
	      writes all arm logs to ~/.arm/log

       -b, --blind
	      disable connection lookups (netstat, lsof, and ss), dropping the parts of the interface that rely on this information

       -e, --event EVENT_FLAGS
	      flags for tor, arm, and torctl events to be logged (default is N3)

		d DEBUG      a ADDRMAP		 k DESCCHANGED	 s STREAM
		i INFO	     f AUTHDIR_NEWDESCS  g GUARD	 r STREAM_BW
		n NOTICE     h BUILDTIMEOUT_SET  l NEWCONSENSUS  t STATUS_CLIENT
		w WARN	     b BW		 m NEWDESC	 u STATUS_GENERAL
		e ERR	     c CIRC		 p NS		 v STATUS_SERVER
			     j CLIENTS_SEEN	 q ORCONN
		  DINWE tor runlevel+		 A All Events
		  12345 arm runlevel+		 X No Events
		  67890 torctl runlevel+	 U Unknown Events

       -v, --version
	      provides version information

       -h, --help
	      provides usage information

FILES

       ~/.arm/armrc
	      Your personal arm configuration file

       /usr/share/doc/arm/armrc.sample
	      Sample armrc configuration file that documents all options

AUTHOR

       Written by Damian Johnson (atagar@torproject.org)

								  27 August 2010							    arm(1)
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