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xen-devel
Re: [Xen-devel] [xen-4.0-testing test] 2032: regressions - FAIL
On Thu, 2010-08-19 at 09:00 +0100, Ian Campbell wrote:
>
> e73f4 is the merge of 2.6.32.19, e6b9b is the merge of 2.6.32.18,
> there are no proper xen.git changesets between the two -- only the
> contents of 2.6.32.19, which does include some Xen save/restore
> "fixes".
2.6.32.19 has a known issue relating to the new stack guard page which
has prompted a quick 2.6.32.20-rc1 with only a couple of patches.
The issue is supposedly PAE and/or HIGHPTE specific but I wonder if it
also has an impact under Xen in other configurations?
The save/restore issue we are seeing seems to relate to an inability to
lock memory for a hypercall and d7824370e26325c881b665350ce64fb0a4fde24a
(the second fix in 2.6.32.20-rc) specifically mentions fixing up a
user-visible mlock change relating to mlock.
I'll try and confirm that, if I can ever manage to get a consistent
repro.
Ian.
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