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xen-ia64-devel

Re: [Xen-devel] [PATCH] reduce useless output from 'd' consolecommand

To: "Keir Fraser" <keir.fraser@xxxxxxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: Re: [Xen-devel] [PATCH] reduce useless output from 'd' consolecommand
From: "Jan Beulich" <jbeulich@xxxxxxxxxx>
Date: Thu, 12 Jun 2008 16:50:40 +0100
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>>> Keir Fraser <keir.fraser@xxxxxxxxxxxxx> 12.06.08 17:31 >>>
>I quite like it as it is. The output for a CPU in guest mode is quite short,
>and outputting printk("CPU%d blah") before doing the IPI also lets us see
>very clearly if a CPU is probably not responding to IPI. I think changing
>console_start_log_everything() to console_start_sync() would be a good idea,
>at least for key 'd'.

The part about placement of the printk() is certainly reasonable, but
the guest mode output being short I have to question - its stack trace
can be as long as the hypervisor's. And clearly printing hypervisor
context when guest execution was interrupted is pointless.

Jan


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