[Bug 219927] awg0 stops working after a long output under ssh
Henri Hennebert
hlh at restart.be
Mon Jun 12 07:59:28 UTC 2017
On 06/11/2017 17:54, Tom Vijlbrief wrote:
>
> Op zo 11 jun. 2017 om 16:23 schreef <bugzilla-noreply at freebsd.org
> <mailto:bugzilla-noreply at freebsd.org>>:
>
> https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=219927
>
> Bug ID: 219927
> Summary: awg0 stops working after a long output under ssh
> Product: Base System
> Version: CURRENT
> Hardware: arm64
> OS: Any
> Status: New
> Severity: Affects Only Me
> Priority: ---
> Component: arm
> Assignee: freebsd-arm at FreeBSD.org
> Reporter: hlh at restart.be <mailto:hlh at restart.be>
>
> Environment: pine64+ 2GB
> FreeBSD norquay.restart.bel 12.0-CURRENT FreeBSD 12.0-CURRENT #0
> r318945M: Sat
> Jun 10 11:47:44 CEST 2017
> root at norquay.restart.bel:/usr/obj/usr/src/sys/NORQUAY arm64
>
> If I connect from a wireless computer (FreeBSD 11.1-PRERELEASE #0
> r318860) and
> run a command with a big output (eg `find /`) the awg0 stops working
> quickly
> (under 20 seconds of output).
>
> If I do the same with telnet from the same computer, the output is
> much longer
> but awg0 stops working.
>
> If I do the same from a wired computer then I must run `find /` 2 or
> 3 times
> before awg0 stops working.
>
> I can rsync through ssh 12GB without problem in both directions
> (from and to
> the pine64 and the wireless computer).
>
> I have a `tcpdump -w ssh.data port 22`. (8.3 MB)
>
> I can connect with a serial console to the pine64 after awg0 stop
> working.
> ifconfig awg0 down
> ifconfig awg0 up
> don't restore the connectivity. I must reboot to restore connectvity.
>
>
> That's a coincidence, today I'm investigating the same issue.
>
> You could try increasing TX_MAX_SEGS in sys/arm/allwinner/if_awg.c line 95.
>
> I'm currently testing TX_MAX_SEGS set to 40 and no lock up yet....
Bingo. Your solution solved the problem.
Thanks a lot.
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