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Re: [Xen-devel] [PATCH 5 of 9] libxl: only use interactive PyGrub mode w
| To: | Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] [PATCH 5 of 9] libxl: only use interactive PyGrub mode when a console is attached |
| From: | Roger Pau Monné <roger.pau@xxxxxxxxxxxxx> |
| Date: | Mon, 10 Oct 2011 16:51:32 +0200 |
| Cc: | "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx> |
| Delivery-date: | Mon, 10 Oct 2011 07:52:25 -0700 |
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| References: | <patchbomb.1317386580@loki> <84a27a9f39f29194a734.1317386585@loki> <20109.55057.491612.998568@xxxxxxxxxxxxxxxxxxxxxxxx> <CAPLaKK5AwPnrvfoPdbc8Ap6pyFqiBuvEWfFUmqSeN_-QR-TZQw@xxxxxxxxxxxxxx> <20115.499.220667.547225@xxxxxxxxxxxxxxxxxxxxxxxx> |
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> That sounds unfortunate. I agree with you. Well Ian Campbell proposed to use a timeout in select and drop data when the timeout is hit, that what I've implemented in libxl: drop bootloader output if xenconsole file descriptor is not available for writing The patch is quite simple and solves the problem, I don't think it interferes with normal boot process, since a 1s timeout is quite high for data to be delivered from xenconsoled_fd to the user if the console is attached. The other option would be to modify xenconsole daemon, but I think that's far too complicated for a problem that can be solved easily. _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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