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[Xen-devel] Re: [PATCH] Make explicit message when guest failed to suspe
| To: | Ian Campbell <Ian.Campbell@xxxxxxxxxxxxx> |
|---|---|
| Subject: | [Xen-devel] Re: [PATCH] Make explicit message when guest failed to suspend |
| From: | Frank Pan <frankpzh@xxxxxxxxx> |
| Date: | Thu, 3 Mar 2011 19:22:58 +0800 |
| Cc: | "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>, Jeremy Fitzhardinge <Jeremy.Fitzhardinge@xxxxxxxxxx>, Stefano Stabellini <Stefano.Stabellini@xxxxxxxxxxxxx> |
| Delivery-date: | Thu, 03 Mar 2011 03:40:26 -0800 |
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> This is a bug in Xend, it should never enter an infinite loop regardless > of guest behaviour. The code certainly appears to expect to be managing > a timeout, perhaps it has bitrotted? > > I don't think you can change the xenbus protocol in this way without > further rationale regarding it's correctness. > > Perhaps a separate control/shutdown-error key? The message written > should be more verbose than just "failed" if/when more specific > information is available to the kernel. FP: Maybe I should seperate it into 2 patches? One for bug fixing, the other for new protocol? > In particular you need to consider and explain how it remains compatible > with a new kernel running on older toolstacks and vice versa. > FP: Right. This is something I haven't considered yet. -- Frank Pan Computer Science and Technology Tsinghua University _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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