Thread (13 messages) 13 messages, 4 authors, 2012-07-31

Re: [Announce] Checkpoint-restore tool v0.1

From: richard -rw- weinberger <hidden>
Date: 2012-07-31 08:58:00
Also in: lkml

On Tue, Jul 31, 2012 at 10:53 AM, Pavel Emelyanov [off-list ref] wrote:
On 07/30/2012 02:42 PM, richard -rw- weinberger wrote:
quoted
On Mon, Jul 23, 2012 at 10:53 AM, Pavel Emelyanov [off-list ref] wrote:
quoted
This project is an attempt to implement the checkpoint-restore functionality
for processes and containers without driving too much code into the kernel tree,
but putting there "various oddball helper code" instead.
Is CRIU able to checkpoint a process tree where one or more processes
are traced using ptrace()?
No it's not (currently).
quoted
crtools seem to use ptrace() to execute parasite system calls.
AFAIK this will only work if the target process is currently not
ptraced() by another process.
Yup, exactly.
Dammit, I hoped we can get suspend/resume for UserModeLinux for free
with CRIU. 8-)

-- 
Thanks,
//richard
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