[CRIU] does crtools work on ubuntu 14.04

[Peter Harbo]

I apologize if this is the wrong place for this question - criu looked
frankly like a dev mailing list to me but I don't know where else to post
it.

I wanted to checkpoint (dump) a process and restore it later (presumably
after a reboot) and discovered that this functionality was added with the
checkpoint-restore tools in the crtools package which is presented as a
single utility.

I tried
crtools dump -t 3916
Error (ptrace.c:75): Unseizeable non-zombie 3916 found, state S
and assumed the user needed permissions I didn't have. Then I tried

sudo crtools dump -t 3916
Can't open self pagemapError (parasite-syscall.c:257): Parasite exited with
1
Error (parasite-syscall.c:577): Dumping pages failed with 1
Error (cr-dump.c:1506): Can't dump pages (pid: 3916) with parasite

Has anyone succeeded in getting this to work? (Running ubuntu 14.04)

The process in question is

  grep foo

and waiting for standard input.  I looked through the doc and it didn't
correspond to the conditions which should cause a failure.  I installed
crtools from the ubuntu repository.  I looked on ubuntuforums.org and
couldn't find any comments about this.

Peter Harbo.
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