[CRIU] Increase limit

[Pavel Emelyanov]

On 04/26/2016 08:00 PM, Federico Reghenzani wrote:
> Hi!
> 
> I come back with another problem :)
> 
> CRIU dump fails with this error:
> 
> (00.020257) Error (files-reg.c:683): Can't dump ghost file /tmp/openmpi-sessions-root at it4i-vm-ubuntu_0/53051/1/shared_mem_pool.it4i-vm-ubuntu.1 of 134217736 size, increase limit
> 
> Searching in the mailing list I found that I have to increase the limit:
> 
> criu_set_ghost_limit(1024 * 1024 * 1024); // 1 GB

Hm... Can you try with this patch:

--- a/criu/files-reg.c
+++ b/criu/files-reg.c
@@ -679,8 +679,8 @@ static int dump_ghost_remap(char *path, const struct stat *st,
        pr_info("Dumping ghost file for fd %d id %#x\n", lfd, id);
 
        if (st->st_size > opts.ghost_limit) {
-               pr_err("Can't dump ghost file %s of %"PRIu64" size, increase limit\n",
-                               path, st->st_size);
+               pr_err("Can't dump ghost file %s of %"PRIu64" size, increase limit (current %zu)\n",
+                               path, st->st_size, opts.ghost_limit);
                return -1;
        }
 

It's strange that ghost_limit wasn't applied.

> Unfortunately it does not seem to work. Full log attached.

Not attached :)

> (CRIU version 2.0)
> 
> Cheers and thank you as usual,
> Federico
> __
> Federico Reghenzani
> M.Eng. Student @ Politecnico di Milano
> Computer Science and Engineering
> 
> 
> 
> 
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