Re: Fwd: backing up to a Drobo CIFS VFS: Error -11 sending data on socket to server, Bufferbloat?

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Hi Robert,

The capture you posted unfortunately does not contain anything of worth
looking at I think. Only 2 SMB packets.

% tshark -r capture.pcap -Y 'smb||smb2'
   1130  15.032933 150.108.64.56 → 150.108.68.23 SMB 144 Trans2 Request, QUERY_PATH_INFO, Query File All Info, Path:
   1131  15.034786 150.108.68.23 → 150.108.64.56 SMB 204 Trans2 Response, QUERY_PATH_INFO

Given your kernel log message I would expect seeing the reconnecting happen.

I would wrap your backup script like so to get the right capture:

    capfile="$(date -Ihours)"
    tcpdump -w "$capfile" port 445 &
    cappid=$!
    sleep 2
    .....<your script>....
    sleep 2
    kill -6 $cappid


-- 
Aurélien Aptel / SUSE Labs Samba Team
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GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg)
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