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Re: [Xen-ia64-devel] [Patch 0/1] fix a bug init_handler_platform

To: Akio Takebe <takebe_akio@xxxxxxxxxxxxxx>
Subject: Re: [Xen-ia64-devel] [Patch 0/1] fix a bug init_handler_platform
From: Alex Williamson <alex.williamson@xxxxxx>
Date: Tue, 23 Jan 2007 15:04:48 -0700
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On Fri, 2007-01-19 at 12:46 +0900, Akio Takebe wrote:
> Hi,
> 
> This patch fix breaking switch stack.
> unw_init_running() in INIT handler the save switch stack pointer.
> The swith stack is not guaranteed after returning unw_init_running().
> But because INIT handler of Xen-ia64 call some functions after
> unw_init_running(), the switch stack is broken by the functions.

   Applied.  I think we may want to re-evaluate the wait being scaled by
number of processors.  On really big systems, we could be waiting quite
a while if a CPU doesn't rendezvous.  Perhaps a cap of 10 seconds?
Thanks,

        Alex

-- 
Alex Williamson                             HP Open Source & Linux Org.


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