# ttyS1 - agetty
#
# This service maintains a agetty on ttyS1.
stop on runlevel [S016]
start on runlevel [23]
respawn
exec agetty /dev/ttyS1 19200 vt102
# bash -x ./ifup-eth ifcfg-br0
+ . /etc/init.d/functions
++ TEXTDOMAIN=initscripts
++ umask 022
++ PATH=/sbin:/usr/sbin:/bin:/usr/bin
++ export PATH
++ '[' -z '' ']'
++ COLUMNS=80
++ '[' -z '' ']'
+++ /sbin/consoletype
++ CONSOLETYPE=pty
+ CONFIG=ifcfg-ifcfg-br0
+ '[' -f ifcfg-ifcfg-br0 ']'
+ CONFIG=ifcfg-br0
+ '[' -f ifcfg-br0 ']'
+ return
+ source_config
+ CONFIG=ifcfg-br0
+ DEVNAME=br0
+ . /etc/sysconfig/network-scripts/ifcfg-br0
++ DEVICE=br0
++ ONBOOT=yes
++ TYPE=bridge
++ BOOTPROTO=static
++ IPADDR=128.117.26.2
++ NETMASK=255.255.255.0
++ NM_CONTROLLED=no
+ '[' -r keys-br0 ']'
+ alias=
+ '[' 1 -eq 0 ']'
+ return 2
+ '[' -n '' ']'
+ '[' bridge = Bridge ']'
+ '[' bridge = Tap ']'
+ is_available br0
+ '[' -z br0 ']'
+ '[' -d /sys/class/net/br0 ']'
+ '[' -n '' ']'
++ modprobe -c
++ awk 'BEGIN { alias = ""; }
$1 == "alias" && $2 == "br0" { alias = $3; }
$1 == "install" { install[$2] = $3; }
END {
cmd = install[alias];
print alias;
if (alias == "" || alias == "off" || cmd == "/bin/true" || cmd == ":")
exit 1;
exit 0;
}'
+ alias=
+ '[' 1 -eq 0 ']'
+ return 2
+ '[' -n '' ']'
+ net_log 'Device br0 does not seem to be present, delaying initialization.'
+ local 'message=Device br0 does not seem to be present, delaying initialization.'
+ local level=
+ local name=
+ '[' -z 'Device br0 does not seem to be present, delaying initialization.' ']'
+ '[' -z '' ']'
+ level=err
+ '[' -z '' ']'
+ name=./ifup-eth
+ echo Device br0 does not seem to be present, delaying initialization.
Device br0 does not seem to be present, delaying initialization.
+ '[' -x /usr/bin/logger ']'
+ /usr/bin/logger -p daemon.err -t ./ifup-eth 'Device br0 does not seem to be present, delaying initialization.'
+ return 0
+ exit 1
# dd if=one.img of=two.img bs=1 skip=32768 count=8587192319 8587192319 bytes (8.6 GB) copied, 12442.3 s, 690 kB/sThat's 3.45 hours for those keeping track at home. Using /dev/shm helped.
# dd if=/dev/shm/one.img of=/dev/shm/two.img bs=1 skip=32768 count=8587192319 8587192319 bytes (8.6 GB) copied, 6232.88 s, 1.4 MB/sThat helped, but it's still 1.73 hours. Okay, so we all know the 1 byte block size is killing the performance. We also all know 8587192319 = 41809 205391, so let's bump up the block size.
# dd if=one.img of=two.img bs=205391 skip=32768 count=41809 9054+1 records in 9054+1 records out 1859682304 bytes (1.9 GB) copied, 1.59914 s, 1.2 GB/sClearly, much faster but also wrong: it should copy 8.6 GB. Let's reverse the numbers and try again.
# dd if=one.img of=two.img bs=41809 skip=32768 count=205391 172688+1 records in 172688+1 records out 7219937280 bytes (7.2 GB) copied, 29.4616 s, 245 MB/sCloser, but still wrong. Something is wrong with dd's math. So, I wrote a Java program that takes an input file name, an output file name, and pairs of skip/write values. Here is the result.
# time java Chopper one.img two.img 32768 8587192319 Skipped 32768 bytes. Writing 8587192319 bytes. real 0m10.656s user 0m1.744s sys 0m8.933sSo, 10.7 seconds versus 3.45 hours. Here's the program.
/*
** Argrments: input file, output file, pairs of skip/write bytes
*/
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
public class Chopper
{
private static void readAndWrite (FileInputStream in, FileOutputStream out,
long length)
{
/*
** Keep this sized to fit in an int for the read below. Besides, 8K
** is a typical disk block size.
*/
final long BUFFSIZE = 8192;
byte buffer[] = new byte[(int) BUFFSIZE];
for (;;)
{
int read = 0;
int count = (int) (BUFFSIZE > length ? length : BUFFSIZE);
try
{
read = in.read (buffer, 0, count);
out.write (buffer, 0, read);
}
catch (IOException IOE)
{
System.out.println (IOE);
return;
}
length -= read;
if (length <= 0)
break;
}
}
public static void main (String args[])
{
FileInputStream in = null;
FileOutputStream out = null;
try
{
in = new FileInputStream (args[0]);
out = new FileOutputStream (args[1]);
}
catch (IOException IOE)
{
System.out.println (IOE);
return;
}
int i = 2;
while (i < args.length)
{
try
{
long skipped = in.skip (Long.parseLong (args[i++]));
System.out.println ("Skipped " + skipped + " bytes.");
}
catch (IOException IOE)
{
System.out.println (IOE);
return;
}
long write = Long.parseLong (args[i++]);
System.out.println ("Writing " + write + " bytes.");
readAndWrite (in, out, write);
}
}
}
pkgutil --pkgs | xargs -n 1 pkgutil --pkg-info | gawk '{printf("%s%s",$0,(NR%5==0)?"\n":"\0")}' | sort -n -k 6 | tr "\0" "\n" | gawk '/install-time/ {print $0 " " strftime("(%c)",$2); next}{print}'
sudo launchctl unload -w /System/Library/LaunchDaemons/com.apple.metadata.mds.plistand the run Time Machine. One might also have to reboot between the two. After Time Machine runs, re-enable with
sudo launchctl load -w /System/Library/LaunchDaemons/com.apple.metadata.mds.plistRunning a dtruss on the backupd process shows a lot of
psynch_cvwait(0x7FE29969CE98, 0x28D0100028E00, 0x0) = -1 Err#316 psynch_cvwait(0x7FE29969CE98, 0x28F0100029000, 0x0) = -1 Err#316 psynch_cvwait(0x7FE29969CE98, 0x2900100029100, 0x0) = -1 Err#316 psynch_cvwait(0x7FE29969CE98, 0x2910100029200, 0x0) = -1 Err#316 psynch_cvwait(0x7FE29969CE98, 0x2920100029300, 0x0) = -1 Err#316 psynch_cvwait(0x7FE29969CE98, 0x2930100029400, 0x0) = -1 Err#316 psynch_cvwait(0x7FE29969CE98, 0x2950100029600, 0x0) = -1 Err#316 psynch_cvwait(0x7FE29969CE98, 0x2960100029700, 0x0) = -1 Err#316 psynch_cvwait(0x7FE29969CE98, 0x2980100029900, 0x0) = -1 Err#316 psynch_cvwait(0x7FE29969CE98, 0x29A0100029B00, 0x0) = -1 Err#316 psynch_cvwait(0x7FE29969CE98, 0x29B0100029C00, 0x0) = -1 Err#316 psynch_cvwait(0x7FE29969CE98, 0x2940100029500, 0x0) = -1 Err#316 psynch_cvwait(0x7FE29969CE98, 0x2970100029800, 0x0) = -1 Err#316 psynch_cvwait(0x7FE29969CE98, 0x2990100029A00, 0x0) = -1 Err#316So, there appears to be a threading issue here somewhere, but without the Time Machine source, it's difficult to track down.
#! /bin/sh
a=`defaults read /Applications/Mail.app/Contents/Info PluginCompatibilityUUID`
b=`defaults read /System/Library/Frameworks/Message.framework/Resources/Info PluginCompatibilityUUID`
for i in ~/Library/Mail/Bundles*/MailUnreadMenu.mailbundle/Contents/Info.plist
do
echo "$i"
echo "${i%%.plist}"
defaults write "${i%%.plist}" SupportedPluginCompatibilityUUIDs -array-add "$a";
defaults write "${i%%.plist}" SupportedPluginCompatibilityUUIDs -array-add "$b";
plutil -convert xml1 "$i"
done
Then a
mv ~/Library/Mail/Bundles\ \(Disabled\)/MailUnreadMenu.mailbundle/ ~/Library/Mail/BundlesMade things right again.