[CRIU] crtools - TCP dumping within a network namespace

Andrew Vagin avagin at parallels.com
Thu Apr 25 04:27:00 EDT 2013


On Wed, Apr 24, 2013 at 10:43:38AM -0400, Dilip Daya wrote:
> Hi criu-developers:
>

Hello Dilip Daya,

I found a root cause of this problem.

> (00.002174) 3232 fdinfo 4: pos: 0xffffffffffffffff flags:           100000/0
> (00.002190) Dumping path for 4 fd via self 53 [net:[4026532312]]

[net:[4026532312]] is a magic file for a net namespce (/proc/PID/ns/net).
crtools doesn't support such files yet.  I'm going to fix crtools for
printing a clear error in this case.

Why is this file descriptor required for your program? Can it be closed?

Thanks.

> (00.002196) Error (files-reg.c:345): BUG at files-reg.c:345
> 


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