[[!meta copyright="Copyright © 2010, 2011 Free Software Foundation, Inc."]] [[!meta license="""[[!toggle id="license" text="GFDL 1.2+"]][[!toggleable id="license" text="Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled [[GNU Free Documentation License|/fdl]]."]]"""]] [[!tag open_issue_hurd]] IRC, unknown channel, unknown date. <grey_gandalf> I did a sudo date... <grey_gandalf> and the machine hangs This was very likely a misdiagnosis: IRC, freenode, #hurd, 2011-03-25: <tschwinge> antrik: I suspect it'S some timing stuff in pfinet that perhaps uses absolute time, and somehow wildely gets confused? <antrik> tschwinge: BTW, pfinet doesn't actually die I think -- it just drops open connections... <antrik> perhaps it thinks they timed out <tschwinge> antrik: Isn't the translator restarted instead? <antrik> don't think so <antrik> when pfinet actually dies, I also loose the NFS mounts, which doesn't happen in this case <antrik> hehe "... and the machine hangs" <antrik> he didn't bother to check that the machine is perfectly fine, only the SSH connection got dropped <tschwinge> Ah, I see. So it'S perhaps indeed simply closes TCP connections that have been without data for ``too long''? <antrik> yeah, that's my guess <antrik> my clock is speeding, so ntpdate sets it in the past <antrik> perhaps there is some math that concludes the connection have been inactive for -200 seconds, which (unsigned) is more than any timeout :-) <tschwinge> (The other way round, you might likely get some integer wrap-around, and thus the same result.) <tschwinge> Yes. IRC, freenode, #hurd, 2011-10-26: <antrik> anyways, when ntpdate adjusts to the past, the connections hang, roughly for the amount of time being adjusted <antrik> they do not die though <antrik> (well, if it's long enough, they probably timeout on the other side...) IRC, freenode, #hurd, 2011-10-27: <antrik> oh, another interesting thing I observed is that the the subhurd pfinet did *not* drop the connection... only the main Hurd one. I thought the clock is system-wide?... <tschwinge> It is. <antrik> it's really fascinating that only the pfinet on the Hurd instance where I set the date is affected, and not the pfinet in the other instance