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Full Discussion: Bad flash sound in Firefox, Chrome (youtube norm)
Operating Systems Linux Red Hat Bad flash sound in Firefox, Chrome (youtube norm) Post 302506469 by Xcislav on Monday 21st of March 2011 01:17:32 AM
Old 03-21-2011
Bad flash sound in Firefox, Chrome (youtube norm)
There is a solution but it seems that it works only once - the first run (adding to a shortcut LD_PRELOAD=$HOME/linusmemcpy.so /usr/bin/firefox &) . Then an error occurs:

Failed to execute child process "LD_PRELOAD=$HOME/linusmemcpy.so" (No such file or directory)

linusmemcpy.so exists in the location but it does not work.

It was by the advice:
1. Cut and paste this into a prompt:
---Cut below---
Code:
cat > $HOME/Downloads/linusmemcpy.c <<EOF
#include <sys/types.h>

void *memcpy(void *dst, const void *src, size_t size)
{
void *orig = dst;
asm volatile("rep ; movsq"
:"=D" (dst), "=S" (src)
:"0" (dst), "1" (src), "c" (size >> 3)
:"memory");
asm volatile("rep ; movsb"
:"=D" (dst), "=S" (src)
:"0" (dst), "1" (src), "c" (size & 7)
:"memory");
return orig;
}
EOF
cd $HOME/Downloads
gcc -O2 -c linusmemcpy.c
ld -G linusmemcpy.o -o linusmemcpy.so

---Stop cutting here---

2. Shutdown any running copies of your webbrowser.

3. Until a Adobe has fixed their Flash player, start your webbrowser as below:

For Firefox users:
Code:
LD_PRELOAD=$HOME/Downloads/linusmemcpy.so /usr/bin/firefox &

For Google Chrome users:
Code:
LD_PRELOAD=$HOME/Downloads/linusmemcpy.so /opt/google/chrome/google-chrome &

[mod]Please use [CODE] tags when posting command lines, source, ...
Last edited by pludi; 03-21-2011 at 06:22 AM..
 

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LEARN ABOUT CENTOS

firefox

FIREFOX(1)							Linux User's Manual							FIREFOX(1)

NAME

       firefox - a Web browser for X11 derived from the Mozilla browser

SYNOPSIS

       firefox [OPTIONS] [URL]

       firefox-bin [OPTIONS] [URL]

DESCRIPTION

       Mozilla Firefox is an open-source web browser, designed for standards compliance, performance and portability.

USAGE

       firefox is a simple shell script that will set up the environment for the actual executable, firefox-bin.

OPTIONS

       A summary of the options supported by firefox is included below.

   GTK options
       --gdk-debug=FLAGS Gdk debugging flags to set

       --gdk-no-debug=FLAGS
	      Gdk debugging flags to unset

       --gtk-debug=FLAGS
	      Gtk+ debugging flags to set

       --gtk-no-debug=FLAGS
	      Gtk+ debugging flags to unset

       --gtk-module=MODULE
	      Load an additional Gtk module

   X11 options
       --display=DISPLAY
	      X display to use

       --sync Make X calls synchronous

       --no-xshm
	      Don't use X shared memory extension

       --xim-preedit=STYLE

       --xim-status=STYLE

       --g-fatal-warnings
	      Make all warnings fatal

   Firefox options
       -h, -help
	      Show summary of options.

       -v, -version
	      Print /usr/bin/firefox-bin version.

       -CreateProfile profile
	      Create profile.

       -P profile
	      Start with profile.

       -ProfileManager
	      Start with profile manager.

       -remote command
	      Execute command in an already running Firefox process.  For more info, see: http://www.mozilla.org/unix/remote.html

       -jsconsole
	      Start with Javascript Console

       -chrome url
	      Load the specified chrome.

       -no-remote
	      Don't connect to any other running instances of firefox. Use this if you want to run firefox in an entirely new process. By default,
	      firefox will delegate a command to an already running instance.

       -safe-mode
	      Start firefox in safe-mode. This disables all third-party extensions, and may be necessary if you are having problems with an exten-
	      sion you installed.

       -new-tab url
	      Open url in a new tab.

       -new-window url
	      Open url in a new window.

       -preferences
	      Open the preferences dialog.

       -private
	      Start firefox in private browsing mode.

       -private-toggle
	      Toggle private browsing mode.

       -setDefaultBrowser
	      Set firefox as the default web browser.

       -search term
	      Search for term with your default search engine.

       -migration
	      Start with migration wizard.

       -new-instance
	      Open new instance, not a new window in running instance.

FILES

       /usr/bin/firefox - shell script wrapping firefox
       /usr/lib/mozilla/firefox-bin - firefox executable

VERSION

       1.0

BUGS

       To report a bug, please visit http://bugzilla.mozilla.org/

SEE ALSO

       mozilla(1)

AUTHORS

       The Mozilla Organization
	      http://www.mozilla.org/about.html

firefox 							  August 07, 2001							FIREFOX(1)
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