[Galaxy Y GT-S5360 General] kurotsugi:
I'll try my best to find the issue on kuro1 tweak but I'll need your help.

#!/system/bin/sh
# kuro tweak1: the echo stuff
# copyright@mycat (2012) - lol...i'm just joking. no copyright or whatsoever
# contact : kaze.noichi17@gmail.com

# v.1 - first release
# v.1.1 - new log system and new tweak added.
# v.1.2 - new tweak for xperia
# v.1.3(4-11-12) - new form

LOG_FILE=/data/kuro_tweak1.log
LOG_FILEZ=/data/kuro_sqlite.log
if [ -e $LOG_FILE ]; then
rm $LOG_FILE;
fi;

if [ -e $LOG_FILEZ ]; then
rm $LOG_FILEZ;
fi;

# the preface
echo "==========================
# TWEAK KURO1-LOG FILE #
==========================
in the name of Allah,
the most beneficent,
the most mercifull
==========================
system information:
vendor : $( getprop ro.product.brand )
model : $( getprop ro.product.model )
ROM : $( getprop ro.build.display.id )

running the script...
start at:
$( date +"%m-%d-%Y %H:%M:%S" )
==========================" | tee -a $LOG_FILE;

# perfect mount
mount -o remount,noatime,commit=500,noauto_da_alloc,barrier=0 /system /system;
mount -o remount,noatime,commit=500,noauto_da_alloc,barrier=0 /data /data;
mount -o remount,noatime,commit=500,noauto_da_alloc,barrier=0 /cache /cache;
echo "perfect mount---------[OK]" | tee -a $LOG_FILE;

# sdcard speed fix
# not working yet - need root permission to change these value
if [ -e /sys/devices/virtual/bdi/179:0/read_ahead_kb ]; then
busybox echo "2048" > /sys/devices/virtual/bdi/179:0/read_ahead_kb
echo "sdcard speed fix------[OK]
-value set to $( cat /sys/devices/virtual/bdi/179:0/read_ahead_kb )" | tee -a $LOG_FILE; else
echo "sdcard speed fix----[FAIL]" | tee -a $LOG_FILE;
fi
# script part1
# kernel kick
sysctl -w kernel.shmmni=4096
sysctl -w kernel.shmmax=268435456
sysctl -w kernel.shmall=2097152
sysctl -w kernel.msgmni=4096
sysctl -w kernel.msgmax=64000
sysctl -w kernel.sched_latency_ns=20000000
sysctl -w kernel.sched_wakeup_granularity_ns=2500000
sysctl -w kernel.sched_min_granularity_ns=10000000
sysctl -w kernel.sem="500 512000 64 2048"
sysctl -w kernel.panic=30
sysctl -w kernel.panic_on_oops=0
sysctl -w kernel.threads-max=10000
#sysctl -w kernel.sched_compat_yield=1
#sysctl -w kernel.sched_shares_ratelimit=256000
#sysctl -w kernel.ctrl-alt-del=0
#sysctl -w fs.lease-break-time=10
#sysctl -w fs.file-max=65536
echo "kernel kick-----------[OK]" | tee -a $LOG_FILE;

# script part2
# OOM
sysctl -w vm.laptop_mode=0
sysctl -w vm.swappiness=10
sysctl -w vm.dirty_writeback_centisecs=3000
sysctl -w vm.dirty_expire_centisecs=500
sysctl -w vm.dirty_ratio=50
sysctl -w vm.dirty_background_ratio=50
sysctl -w vm.lowmem_reserve_ratio="100 100"
sysctl -w vm.overcommit_ratio=50
sysctl -w vm.highmem_is_dirtyable=1
sysctl -w vm.min_free_order_shift=4
sysctl -w vm.oom_kill_allocating_task=0
sysctl -w vm.panic_on_oom=0
sysctl -w vm.page-cluster=3
#sysctl -w vm.drop_caches=3
sysctl -w vm.min_free_kbytes=5120
sysctl -w vm.vfs_cache_pressure=50
#sysctl -w vm.block_dump=0
echo "memory management-----[OK]" | tee -a $LOG_FILE;

# script part3. don't touch it
# network boost
sysctl -w net.ipv4.tcp_congestion_control=cubic
sysctl -w net.ipv4.tcp_timestamps=0
sysctl -w net.ipv4.tcp_tw_reuse=1
sysctl -w net.ipv4.tcp_sack=1
sysctl -w net.ipv4.tcp_dsack=1
sysctl -w net.ipv4.tcp_tw_recycle=1
sysctl -w net.ipv4.tcp_window_scaling=1
sysctl -w net.ipv4.tcp_keepalive_probes=5
sysctl -w net.ipv4.tcp_keepalive_intvl=30
sysctl -w net.ipv4.tcp_fin_timeout=30
sysctl -w net.ipv4.tcp_moderate_rcvbuf=1
sysctl -w net.ipv4.tcp_max_tw_buckets=1440000
sysctl -w net.ipv4.tcp_mem="57344 57344 524288"
sysctl -w net.ipv4.tcp_synack_retries=2
sysctl -w net.ipv4.tcp_syn_retries=2
sysctl -w net.ipv4.tcp_max_syn_backlog=1024
sysctl -w net.ipv4.icmp_echo_ignore_all=1
sysctl -w net.ipv4.route/flush=1
sysctl -w net.ipv4.udp_rmem_min=6144
sysctl -w net.ipv4.udp_wmem_min=6144
sysctl -w net.ipv4.tcp_rfc1337=1
sysctl -w net.ipv4.ip_no_pmtu_disc=0
sysctl -w net.ipv4.tcp_ecn=0
sysctl -w net.ipv4.tcp_wmem="6144 87380 524288"
sysctl -w net.ipv4.tcp_rmem="6144 87380 524288"
sysctl -w net.ipv4.tcp_fack=1
sysctl -w net.ipv4.tcp_synack_retries=2
sysctl -w net.ipv4.tcp_syn_retries=2
sysctl -w net.ipv4.tcp_no_metrics_save=1
sysctl -w net.ipv4.tcp_keepalive_time=1800
sysctl -w net.ipv4.ip_forward=0
sysctl -w net.ipv4.ip_dynaddr=0
sysctl -w net.ipv4.conf.all.accept_source_route=0
sysctl -w net.ipv4.conf.all.accept_redirects=0
sysctl -w net.ipv4.conf.all.rp_filter=1
sysctl -w net.ipv4.conf.all.secure_redirects=0
sysctl -w net.ipv4.conf.default.accept_redirects=0
sysctl -w net.ipv4.conf.default.secure_redirects=0
sysctl -w net.ipv4.conf.default.accept_source_route=0
sysctl -w net.core.rmem_max=524288
sysctl -w net.core.wmem_max=524288
sysctl -w net.core.rmem_default=262144
sysctl -w net.core.wmem_default=262144
sysctl -w net.core.optmem_max=20480
sysctl -w net.core.netdev_max_backlog=25000
sysctl -w net.unix.max_dgram_qlen=50
echo "network boost---------[OK]" | tee -a $LOG_FILE;

# cleaner
busybox rm -f /data/anr/*.*
busybox rm -f /data/cache/*.*
busybox rm -f /data/log/*.*
busybox rm -f /data/tombstones/*
busybox rm -f /data/system/dropbox/*.*
chmod 400 /data/system/dropbox
busybox rm /dev/log/main
busybox rm -f /data/system/usagestats/*
busybox chmod 400 /data/system/usagestats

export sampling_rate=10000
export up_threshold=80

echo "memory cleaner--------[OK]" | tee -a $LOG_FILE;

if [ -e /data/anr/*.* ]; then
echo "-anr not cleaned" | tee -a $LOG_FILE; else
echo "-anr cleaned" | tee -a $LOG_FILE
fi;
if [ -e /data/cache/*.* ]; then
echo "-cache not cleaned" | tee -a $LOG_FILE; else
echo "-cache cleaned" | tee -a $LOG_FILE
fi;
if [ -e /data/log/*.* ]; then
echo "-log not cleaned" | tee -a $LOG_FILE; else
echo "-log cleaned" | tee -a $LOG_FILE
fi;
if [ -e /data/tombstones/*.* ]; then
echo "-tombstones not cleaned" | tee -a $LOG_FILE; else
echo "-tombstones cleaned" | tee -a $LOG_FILE
fi;

# minfree
if [ -e /sys/module/lowmemorykiller/parameters/debug_level ]; then
echo "0" > /sys/module/lowmemorykiller/parameters/debug_level
fi
if [ -e /sys/module/lowmemorykiller/parameters/cost ]; then
echo "64" > /sys/module/lowmemorykiller/parameters/cost
fi
if [ -e /sys/module/lowmemorykiller/parameters/adj ]; then
echo "0,1,3,5,7,15" > /sys/module/lowmemorykiller/parameters/adj
fi
if [ -e /sys/module/lowmemorykiller/parameters/minfree ]; then
echo "4096,5182,6400,15360,17920,20480" > /sys/module/lowmemorykiller/parameters/minfree
fi
echo "minfree setting-------[OK]
-minfree value
$( cat /sys/module/lowmemorykiller/parameters/adj )
$( cat /sys/module/lowmemorykiller/parameters/minfree )" | tee -a $LOG_FILE;

# i/o related tweak
STL=`ls -d /sys/block/stl*`;
BML=`ls -d /sys/block/bml*`;
MMC=`ls -d /sys/block/mmc*`;

#I/O scheduler
avail_io=/sys/block/mmcblk0/queue/scheduler
check=`cat $avail_io`

#sio not working , needs more testing
if [ grep "sio" /sys/block/mmcblk0/queue/scheduler ]; then
for i in $STL $BML $MMC;
do
echo "sio" > $i/queue/scheduler;
done;
else
for i in $STL $BML $MMC;
do
echo "noop" > $i/queue/scheduler;
done;
fi

# Optimize non-rotating storage;
for i in $STL $BML $MMC;
do
#IMPORTANT!
if [ -e $i/queue/rotational ];
then
echo 0 > $i/queue/rotational;
fi;
if [ -e $i/queue/nr_requests ];
then
echo 8192 > $i/queue/nr_requests; # for starters: keep it same
fi;

# deadline/VR/SIO scheduler specific
if [ -e $i/queue/iosched/fifo_batch ];
then
echo 1 > $i/queue/iosched/fifo_batch;
fi;
if [ -e $i/queue/iosched/writes_starved ];
then
echo 1 > $i/queue/iosched/writes_starved;
fi;

if [ -e $i/queue/iostats ];
then
echo "0" > $i/queue/iostats;
fi;

# Optimize for read- & write-throughput;
# Optimize for readahead;
if [ -e $i/queue/read_ahead_kb ];
then
echo "256" > $i/queue/read_ahead_kb;
fi;

done;

echo "IO tweaks-------------[OK]" | tee -a $LOG_FILE;

# end
echo "==========================
done at:
$( date +"%m-%d-%Y %H:%M:%S" )
all praise is due to Allah
==========================
-- have a nice day --
kurotsugi@xda
==========================" | tee -a $LOG_FILE;

please copy this script into your current kuro1 file. after that, give the file correct permission and reboot your device. see if it succesfully booted or not. if it doesn't boot please do these step.

1. revive your system. I hope you know how to do it either by adb or restore your backup.

2. put # on every line on script part1. reboot your device and see the result..

3. put # on every line on script part2. reboot your device and see the result

4. delete # on every line on script part1. reboot your device and see the result.