#340 ocs-onthefly: line 1347: 6093 killed ... failed to clone

[John Brearley]

To see if I got poor performance copy times with most recent builds, I tested with V2.6.5.8 PAE build. Both attempts died with error: /usr/sbin/ocs-onthefly: line 1347: 6093 killed partclone .ntfs -z 10485760 -N -L /var/log/partclone.log -b -s /dev/sda2 -O /dev/sdb2 failed to clone /dev/sda2 to /dev/sdb2, see attached photograph of screen. First try died after 2.5 hours, second try died after 4.2 hours.

My desktop is an Intel i7-4770S CPU, 3.10 GHz with 32GB DDR3 RAM. I have been upgrading the disks from 1TB to 2TB, and the primary drive is now solid state.

I also tested with the 20191226-focal AMD64 build, as there was no PAE build available. To my surprize, this copy ran cleanly, in a little over 3 hours. This is more in line with the performace times I was getting with V2.5.6.22 from Dec 2018.

The wisdom is using an AMD64 build on an Intel CPU is not at all obvious to me. I will try the AMD64 build again tonight and see if the good results continue.

[Steven Shiau]

AMD64 is actually the same as x86-64. Please check:
https://en.wikipedia.org/wiki/X86-64
We use amd64 in the release arch is due to Debian and Ubuntu use that:
https://wiki.debian.org/DebianAMD64Faq

Hence, please use AMD64 for the model x86-64 CPU.

Steven

[Jeremy Boden]

Historical note:
AMD were first with a 64 bit architecture that was an extension of X86 and called it AMD64.
Shortly after Intel played catch-up and produced a compatible 64 bit architecure and called it X86-64.
Ever since both CPU's have remained compatible.

[Stan]

I have the same issue, was trying to clone 6TB --> 12TB , any workaround?

[Stan]

attached

[Steven Shiau]

Which version of Clonezilla live did you use? Have you tried the latest Clonezilla live., including testing release, e.g., >= 2.6.6-12 or 20200421-focal amd64 release:
https://clonezilla.org/downloads.php
?

Steven

[Stan]

Hi Steven,

I'm using Clonezilla live 2.6.5-21 . Made a bootable flash drive using https://tuxboot.org/
Trying 2.6.6-12 now

[Stan]

Clonezilla live 2.6.6-12 returns similar error:

[Steven Shiau]

OK, did you try Clonezilla live 20200421-focal?
BWT, what's your RAM size? Please run:
free -h
to show that.
Thanks.

Steven

[Stan]

Hmm, looks like kernel kills it because of OOM. Is there any cgroup limit?
It's not memory issues

Let me try 20200421-focal

[Steven Shiau]

OOM... No idea why...
No, we do not set any cgroup limit.

Steven

[Stan]

Hey Steve,

So looks like 20200421-focal worked like a charm. Well it didn't die yet, 7 minutes / 1,39% of proggress. Will post results tomorrow

[John Brearley]

Hi Stan, Steve: My notes show that in late December and early January I did multiple successfull copies of a 2TB solid state drive using 20191226 Focal build for AMD64. Yes, the copy times were 4+ hours, but they were successfull copies and correctly booted OK. I have an Intel i7-4770S CPU, 3.10 GHz with 32GB DDR3 RAM.

[Stan]

Hi,

I successfully finished to clone my hdds with 20200421-focal . Prorably any alternative versions works for me, didn't try tho.

Thanks

[Steven Shiau]

Thank you both for your feedback.
Not sure which part of Debian causes this OOM issue. At least now Ubuntu-based Clonezilla live works for you.

Steven