Messages in this thread | | | Date | Mon, 22 Aug 2011 09:36:04 +0300 | From | Avi Kivity <> | Subject | Re: KVM induced panic on 2.6.38[2367] & 2.6.39 |
| |
On 08/20/2011 04:16 PM, Brad Campbell wrote: > Author: Alexander Duyck <alexander.h.duyck@intel.com> > Date: Thu Jul 1 13:28:27 2010 +0000 > > x86: Drop CONFIG_MCORE2 check around setting of NET_IP_ALIGN > > This patch removes the CONFIG_MCORE2 check from around > NET_IP_ALIGN. It is > based on a suggestion from Andi Kleen. The assumption is that > there are > not any x86 cores where unaligned access is really slow, and this > change > would allow for a performance improvement to still exist on > configurations > that are not necessarily optimized for Core 2. > > Cc: Andi Kleen <ak@linux.intel.com> > Cc: Thomas Gleixner <tglx@linutronix.de> > Cc: Ingo Molnar <mingo@redhat.com> > Cc: "H. Peter Anvin" <hpa@zytor.com> > Cc: x86@kernel.org > Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> > Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> > Acked-by: H. Peter Anvin <hpa@zytor.com> > Signed-off-by: David S. Miller <davem@davemloft.net> > > :040000 040000 5a15867789080a2f67a74b17c4422f85b7a9fb4a > b98769348bd765731ca3ff03b33764257e23226c M arch > > I can confirm this bug exists in the 3.0 kernel, however I'm unable to > reproduce it on todays git. > > So anyone using netfilter, kvm and bridge on kernels between > 2.6.36-rc1 and 3.0 may hit this bug, but it looks like it is fixed in > the current 3.1-rc kernels. >
Thanks for this effort. I don't think this patch is buggy in itself, it merely exposed another bug which was fixed later on.
-- I have a truly marvellous patch that fixes the bug which this signature is too narrow to contain.
| |