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xen-devel
Re: [Xen-devel] [GIT PULL] for-2.6.32/bug-fixes for 2.6.32 pvops tree.
On Thu, 17 Mar 2011, Konrad Rzeszutek Wilk wrote:
> Hey Jeremy,
>
> Please pull this git:
>
> git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen.git
> for-2.6.32/bug-fixes
>
> It has three bootup-fixes that have gatted 2.6.32 tree from booting on some of
> my machines:
> - hvc_console would blow up during bootup with the irq handler hitting a
> NULL pointer
> - On Intel i915, if one was to use dom0_mem=1500M the "flush" page would be
> incorrectly allocated in System RAM, and ioremap trying to use the PFN
> instead of the MFN ending disastrously. The fix is to reserve the
> System RAM E820 areas so the reserve API does not use it.
> - On IBM Summit machines (I've a x3850) it would end up using the
> native_apic_read
> causing a blowup. Back-ported how we are guard ourselves against this in
> 2.6.38
>
> All of these fixes are in 2.6.39-rc0 (or on the way). The machines that boot
> now
> are: IBM x3850, Intel DX58SO,, and G31M-ES2L/G31M-ES2L.
>
> Konrad Rzeszutek Wilk (3):
> xen/hvc: Disable probe_irq_on/off from poking the hvc-console IRQ line.
> xen/e820: Don't mark balloon memory as E820_UNUSABLE when running as
> guest and fix overflow.
> xen/ioapic: Allow set_fixmap to set FIX_APIC_BASE to dummy mapping.
>
> Zhang, Fengzhe (1):
> xen/setup: Inhibit resource API from using System RAM E820 gaps as PCI
> mem gaps.
>
> arch/x86/kernel/acpi/boot.c | 4 ----
> arch/x86/xen/mmu.c | 4 ++++
> arch/x86/xen/setup.c | 9 +++++++++
> drivers/char/hvc_xen.c | 2 ++
> 4 files changed, 15 insertions(+), 4 deletions(-)
>
> P.S.
> There is one more fix, which is a back-port of Stefano's patch consulting the
> memblock
> (or e820_reserve_range) API when clearing the PMDs. That looks to be fixing
> some folks
> builds, but I will let Stefano post that one.
I am just waiting for the upstream guys to ack my fix because I would
like to have the same fix in both trees.
I should be able to send a git pull request in the next few days.
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