[CRIU] unexpected socket state dump failure

[Pavel Emelyanov]

On 10/10/2015 02:01 AM, Ross Boucher wrote:
> Do you recall why the patches weren't accepted? Is this just something CRIU isn't interested in supporting?

No, we do want this functionality. The thing is that the patches in question
are the kernel ones and the netdev@ guys didn't accept those. I don't remember
the exact reason, but we plan to come back to them again some day.

-- Pavel

> On Fri, Oct 9, 2015 at 8:25 AM Andrew Vagin <avagin at odin.com <mailto:avagin at odin.com>> wrote:
> 
>     On Thu, Oct 08, 2015 at 11:27:08PM +0000, Ross Boucher wrote:
>     > I'm now separately seeing this failure when checkpointing:
>     >
>     > (00.163078) Error (sk-inet.c:211): Socket state 8 obtained but expected 7
>     Here are all states:
> 
>     1        TCP_ESTABLISHED = 1,
>     2        TCP_SYN_SENT,
>     3        TCP_SYN_RECV,
>     4        TCP_FIN_WAIT1,
>     5        TCP_FIN_WAIT2,
>     6        TCP_TIME_WAIT,
>     7        TCP_CLOSE,
>     8        TCP_CLOSE_WAIT,
>     9        TCP_LAST_ACK,
>     10       TCP_LISTEN,
>     11       TCP_CLOSING,    /* Now a valid state */
>     12        TCP_NEW_SYN_RECV,
> 
>     criu supports only TCP_LISTEN, TCP_CLOSE, TCP_ESTABLISHED
> 
>     I added TCP_CLOSE_WAIT, TCP_CLOSING, TCP_LAST_ACK, TCP_FIN_WAIT1,
>     TCP_FIN_WAIT2, but these patches were not committed.
> 
>     >
>     >
>     >
>     > On Thu, Oct 8, 2015 at 2:57 PM Ross Boucher <rboucher at gmail.com <mailto:rboucher at gmail.com>> wrote:
>     >
>     > > Seems like the issue was that I was calling shutdown on a socket without
>     > > closing it.
>     > >
>     > > On Thu, Oct 8, 2015 at 2:25 PM Ross Boucher <rboucher at gmail.com <mailto:rboucher at gmail.com>> wrote:
>     > >
>     > >> Does anyone have an idea of what might cause this failure:
>     > >> (00.174924) Error (sk-inet.c:211): Socket state 4 obtained but expected 7
>     > >>
>     > >> -Ross
>     > >>
>     > >
> 
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> 
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