On March 4, 2017 12:41:05 AM GMT+01:00, Grant Edwards <grant.b.edwa...@gmail.com> wrote: >On 2017-03-03, J. Roeleveld <jo...@antarean.org> wrote: > >> On March 3, 2017 7:49:27 PM GMT+01:00, Grant Edwards ><grant.b.edwa...@gmail.com> wrote: > >>>About a week ago, they started acting oddly. They all mount fine, >and >>>work as usual as long as you keep using them. AFAICT, if they sit >>>idle for "a while" (tens of minutes, maybe an hour), they freeze up. > >[...] > >> My guess would be some timeout setting on the server killing the >> login. > >That doesn't seem to be the problem. I've asked around, and others >aren't seeing this problem. > >I've also noticed that sometimes the mounts will start working again >without a umount/mount, but I can't figure out what causes it... > >Normally, when things are working but idle, the TCP connection to 445 >shows an SMB echo request/rseponse transaction once per minute. When >it fails, the TCP connection evidently got dropped, and the Windows >machine repeatedly shuts down new ones: > >The failure mode looks like this in wireshark: > > Gentoo Windows > > -> SYN -> 445 > <- SYN/ACK <- 445 > -> ACK -> 445 > -> SMB[echo req] -> 445 > <- RST <- 445 > >[that repeats 800 times per second for long periods of time] > >Then at some point, it starts to work: > > -> SYN -> 445 > <- SYN/ACK <- 445 > -> ACK -> 445 > -> SMB[proto neg req] -> 445 > <- SMB[proto neg rsp] <- 445 > -> SMB[ses setup req] -> 445 > <- SMB[ses setup rsp] <- 445 > ... > >Sometimes the umount times out and "fails" because the "host is down", >and when that happens, it seems like it immediately starts to work >again. :/
Are other hosts linux or windows? Maybe a dodgy switch forgetting the correct path? -- Joost -- Sent from my Android device with K-9 Mail. Please excuse my brevity.
