From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
To: M A Young <m.a.young@durham.ac.uk>
Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com>,
xen-devel@lists.xen.org
Subject: Re: some recent xen kernel bugs in Fedora
Date: Tue, 2 Oct 2012 10:00:03 -0400 [thread overview]
Message-ID: <20121002140003.GC15735@phenom.dumpdata.com> (raw)
In-Reply-To: <alpine.DEB.2.00.1210012207180.18743@procyon.dur.ac.uk>
On Mon, Oct 01, 2012 at 10:35:57PM +0100, M A Young wrote:
> There have been a few xen kernel bug reported recently in Fedora.
>
> In https://bugzilla.redhat.com/show_bug.cgi?id=861977 someone is
> getting the error WARNING: at arch/x86/xen/setup.c:88
> xen_memory_setup with the kernel 3.5.4-2.fc17.x86_64 (which is
> roughly 3.5.4 plus patches from the 3.5.5 patch queue including the
> backports of
> xen/boot: Disable NUMA for PV guests 8d54db795dfb1049d45dc34f0dddbc5347ec5642
> xen/boot: Disable BIOS SMP MP table search bd49940a35ec7d488ae63bd625639893b3385b97
> xen/m2p: do not reuse kmap_op->dev_bus_addr 2fc136eecd0c647a6b13fcd00d0c41a1a28f35a5
> plus xen-pciback-restore-pci-config-space-after-FLR.patch
Oh, so that WARN was suppose to catch rather weird cases - and it did!
FYI, It was added by
xen/setup: Fix one-off error when adding for-balloon PFNs to the P2M.
Let me help figure out what the issue is.
>
> In https://bugzilla.redhat.com/show_bug.cgi?id=858893 there is a
> NULL pointer dereference at xennet_poll+0x94e/0xf10 in
> 3.6.0-0.rc2.git2.1.fc18.x86_64
That should be fixed with 3.6.0-rc5.
>
> There is also https://bugzilla.redhat.com/show_bug.cgi?id=859466
> where xen 4.2 does not boot on MacBook with a 3.5 kernel unless
> xsave=off which seems to relate to
> https://lists.fedoraproject.org/pipermail/xen/2012-August/005879.html
There was another discussion and the Fedora kernel engineers mentioned
they removed the patch that broke this. Here is the thread:
https://bugzilla.redhat.com/show_bug.cgi?id=859466
>
> Michael Young
prev parent reply other threads:[~2012-10-02 14:00 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-01 21:35 some recent xen kernel bugs in Fedora M A Young
2012-10-02 14:00 ` Konrad Rzeszutek Wilk [this message]
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