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From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
To: olaf@aepfle.de, xen-devel@lists.xensource.com
Subject: 9d02b43dee0d7fb18dfb13a00915550b1a3daa9f (xen PVonHVM: use E820_Reserved area for shared_info) causes regression with 32-bit PVHVM guests (v3.8-rcX) on Xen 4.1
Date: Wed, 13 Feb 2013 13:11:03 -0500	[thread overview]
Message-ID: <20130213181103.GC20042@phenom.dumpdata.com> (raw)

Hey Olaf,

The commit 9d02b43dee0d7fb18dfb13a00915550b1a3daa9f
(xen PVonHVM: use E820_Reserved area for shared_info) causes
a regression when doing 'xm restore' (or migrate) of a 32-bit
PVHVM guest with Xen 4.1. This is xen-4.1-testing with v3.8-rc7
and me just doing 'xm save <name> <file>' followed by
'xm restore <file> && xm console <name>' and I don't see anything
on the serial console. The 'xentop' shows the guest consuming 100%
cycles spinning around in pvlock_read.

By just reverting this patch (well, also a7be94ac8d69c037d08f0fd94b45a593f1d45176)
the problem disappears.

Any thoughts of what might be wrong?

             reply	other threads:[~2013-02-13 18:11 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-02-13 18:11 Konrad Rzeszutek Wilk [this message]
2013-02-13 18:58 ` 9d02b43dee0d7fb18dfb13a00915550b1a3daa9f (xen PVonHVM: use E820_Reserved area for shared_info) causes regression with 32-bit PVHVM guests (v3.8-rcX) on Xen 4.1 Olaf Hering
2013-02-13 19:43   ` Konrad Rzeszutek Wilk
2013-02-13 21:19     ` Olaf Hering
2013-02-13 21:44       ` Konrad Rzeszutek Wilk
2013-02-14 15:15 ` Olaf Hering
2013-02-15  2:30   ` Konrad Rzeszutek Wilk

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