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Re: [Xen-devel] [PATCH]do not allow multiple xenconsole connect to the s

from [Ian Jackson] [Permanent Link][Original]
To: Alan Cox <alan@xxxxxxxxxxxxxxxxxxx>
Subject: Re: [Xen-devel] [PATCH]do not allow multiple xenconsole connect to the same pty
From: Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>
Date: Tue, 15 Feb 2011 20:04:19 +0000
Cc: "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, Li Dongyang <lidongyang@xxxxxxxxxx>
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Alan Cox writes ("Re: [Xen-devel] [PATCH]do not allow multiple xenconsole 
connect to the same pty"):
> Use POSIX pty interfaces and you don't get these problems. See
> grantpt/unlockpt/posix_openpt.

Thanks for your helpful comment.  Unfortunately it's not really
relevant in this situation.  What our code is doing is using ptys as
an internal IPC mechanism.  I think this is very wrong and I hope we
can fix it in the Xen 4.2 release cycle.  But for now it's what we
have.

Ian.

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