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Message-ID: <AANLkTimB_PDr2RNWzd93QeAca5PE48hkzEHuM-Z80wTj@mail.gmail.com> Date: Thu, 16 Sep 2010 15:23:39 +0200 From: Martín Ferrari <martin.ferrari@...il.com> To: "Eric W. Biederman" <ebiederm@...ssion.com> Cc: netdev <netdev@...r.kernel.org>, Alina <aquereilhac@...il.com>, Mathieu Lacage <mathieu.lacage@...hia.inria.fr> Subject: Re: Problem with tun driver Hi Eric, On Thu, Sep 16, 2010 at 15:16, Eric W. Biederman <ebiederm@...ssion.com> wrote: > Is it possible all of the processes in the network namespace you have > passed the tun dev into are dying, and thus destroying the network > namespace the tun dev is in? I thought that might be the case, but no, I still have a process there, and from that I spawn an "ip link" that shows me that the tap device still exists and it is up. > It sounds like you are dealing with the network namespace death case, > or that someone is closing your filedescriptor on you. I also checked that, but no, nobody is closing it... To make things more strange, this happens to me only when communicating with my slave processes by a ssh to localhost (the filedescriptor is passed using SCM_RIGHTS), but not when I fork directly, so at this point a timing issue seems to be the only explanation. But it still does not make sense, as some traffic gets exchanged correctly. Thanks for your time. -- Martín Ferrari -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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