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Live Large File Copy Bug

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Tejas

Titel: Live Large File Copy Bug

Verfasst am: 05.06.2011, 12:42 Uhr

Anmeldung: 09. Mai 2011
Beiträge: 74

TERMINAL UNDER X

Persistence Version of Iso Image on HD
$ cat /etc/kanotix-version
Kanotix Hellfire 20110511-14:43

Code:

# mkdir /p1

# mkdir /p6

# mount /dev/sda1 /p1

# mount /dev/sda6 /p6

# ls -lh /p6/lm

-rw-r--r-- 1 999 999 867M May 28 15:26 linuxmint-11-gnome-dvd-32bit.iso

# ls -lh /p1/dum

-rw-r--r-- 1 root root 554M Jun 5 11:31 linuxmint-11-gnome-dvd-32bit.iso

# cp /p6/lm/linuxmint-11-gnome-dvd-32bit.iso /p1/dum

cp: overwrite `/p1/dum/linuxmint-11-gnome-dvd-32bit.iso'?  y

Continuous disk access of several seconds duration, then complete freeze! No mouse, no Alt+Tab. No Ctl+Alt+bksp. No Ctl+Alt+F1. TOTAL FREEZE.

Non-Persistence Version of Iso Image on HD
kanotix@Kanotix:~$ cat /etc/kanotix-version
Kanotix Hellfire 20110511-14:43

Code:

root@Kanotix:/home/kanotix# mkdir /p1

root@Kanotix:/home/kanotix# mkdir /p6

root@Kanotix:/home/kanotix# mount /dev/sda1 /p1

root@Kanotix:/home/kanotix# mount /dev/sda6 /p6

root@Kanotix:/home/kanotix# ls -lh /p6/lm

total 868M

-rw-r--r-- 1 999 999 867M May 28 13:26 linuxmint-11-gnome-dvd-32bit.iso

root@Kanotix:/home/kanotix# ls -lh /p1/dum

total 31M

-rw-r--r-- 1 root root 31M Jun 5 09:55 linuxmint-11-gnome-dvd-32bit.iso

root@Kanotix:/home/kanotix# cp /p6/lm/linuxmint-11-gnome-dvd-32bit.iso /p1/dum

cp: overwrite `/p1/dum/linuxmint-11-gnome-dvd-32bit.iso'? y

Continuous disk access of several seconds duration, then complete freeze! No mouse, no Alt+Tab. No Ctl+Alt+bksp. No Ctl+Alt+F1. TOTAL FREEZE.

Non-Persistence Version of Iso Image on HD
Linux Mint

Code:

mint mint # mkdir /p1

mint mint # mkdir /p6

mint mint # mount /dev/sda1 /p1

mint mint # mount /dev/sda6 /p6

mint mint # ls -ld /p6/lm

drwxrwxrwx 2 mint mint 4096 2011-05-30 23:26 /p6/lm

mint mint # ls -ld /p1/dum

drwxr-xr-x 2 root root 96 2011-06-05 09:30 /p1/dum

mint mint # ls -lh /p6/lm

total 868M

-rw-r--r-- 1 mint mint 867M 2011-05-28 13:26 linuxmint-11-gnome-dvd-32bit.iso

mint mint # ls -lh /p1/dum

total 31M

-rw-r--r-- 1 root root 31M 2011-06-05 09:55 linuxmint-11-gnome-dvd-32bit.iso

mint mint # cp /p6/lm/linuxmint-11-gnome-dvd-32bit.iso /p1/dum

mint mint # ls -lh /p1/dum

total 868M

-rw-r--r-- 1 root root 867M 2011-06-05 10:48 linuxmint-11-gnome-dvd-32bit.iso

mint mint # df -h /p1

Filesystem Size Used Avail Use% Mounted on

/dev/sda1 60G 15G 45G 25% /p1

O.K.

Tejas

Titel: Temporary Fix => Memory Problem

Verfasst am: 11.06.2011, 23:27 Uhr

Anmeldung: 09. Mai 2011
Beiträge: 74

Create SWAP

Code:

# swapon /dev/sda7

# swapon -s

Filename Type Size Used Priority

/dev/sda7 partition 530108 0 -1

# mount /dev/sda1 p1

# ls -l p1/dum

-rw-r--r-- 1 root root 909107200 Jun 5 12:48 linuxmint-11-gnome-dvd-32bit.iso

# rm p1/dum/*

rm: remove regular file `p1/dum/linuxmint-11-gnome-dvd-32bit.iso'? y

Create Large File

Code:

# dd if=/dev/zero of=p1/dum/dummy bs=1M count=768

768+0 records in

768+0 records out

805306368 bytes (805 MB) copied, 10.8299 s, 74.4 MB/s

Successfully Created

Code:

# ls -l p1/dum/dummy

-rw-r--r-- 1 root root 805306368 Jun 11 18:52 p1/dum/dummy

# ls -lh p1/dum/dummy

-rw-r--r-- 1 root root 768M Jun 11 18:52 p1/dum/dummy

# du -h p1/dum/dummy

769M p1/dum/dummy

Used to Crash with the Same Symptoms

after Continuous disk access the System Froze

Code:

# swapon -s

Filename Type Size Used Priority

/dev/sda7 partition 530108 79916 -1

Swap Used and Command Completed Ausrufezeichen

Large File

Code:

# mount /dev/sda6 p6

# ls -l p6/lm

-rw-r--r-- 1 999 999 909107200 May 28 15:26 linuxmint-11-gnome-dvd-32bit.iso

drwxr-xr-x 2 root root 4096 Jun 6 11:06 vd

Large File Copy

Code:

# cp -a p6/lm/linuxmint-11-gnome-dvd-32bit.iso p1/dum

# swapon -s

Filename Type Size Used Priority

/dev/sda7 partition 530108 79896 -1

Swap Used

Code:

# ls -lh p1/dum/

total 1.6G

-rw-r--r-- 1 root root 768M Jun 11 18:52 dummy

-rw-r--r-- 1 999 999 867M May 28 15:26 linuxmint-11-gnome-dvd-32bit.iso

# ls -l p1/dum/

-rw-r--r-- 1 root root 805306368 Jun 11 18:52 dummy

-rw-r--r-- 1 999 999 909107200 May 28 15:26 linuxmint-11-gnome-dvd-32bit.iso

& Copy Terminated Normally

Swap Usage

Code:

# swapon /dev/sda7

# swapon -s

Filename Type Size Used Priority

/dev/sda7 partition 530108 0 -1

# mount /dev/sda1 p1

During DD

Code:

$ sudo swapon -s

Filename Type Size Used Priority

/dev/sda7 partition 530108 0 -1

# dd if=/dev/zero of=p1/dum/ddt bs=1M count=768

$ sudo swapon -s
Filename Type Size Used Priority
/dev/sda7 partition 530108 2776 -1
/dev/sda7 partition 530108 2828 -1
/dev/sda7 partition 530108 2828 -1
/dev/sda7 partition 530108 2828 -1
/dev/sda7 partition 530108 2768 -1

Code:

768+0 records in

768+0 records out

805306368 bytes (805 MB) copied, 13.0094 s, 61.9 MB/s

$ sudo swapon -s

Filename Type Size Used Priority

/dev/sda7 partition 530108 2628 -1

Command Execution

Code:

# ls -lh p1/dum/

total 2.4G

-rw-r--r-- 1 root root 768M Jun 11 22:10 ddt

-rw-r--r-- 1 root root 768M Jun 11 18:52 dummy

-rw-r--r-- 1 999 999 867M May 28 15:26 linuxmint-11-gnome-dvd-32bit.iso

Normally Terminating

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