On Wed, 25 Apr 2012 11:20:44 +0200 Rik Theys <rik.th...@esat.kuleuven.be> wrote:
> Hi, > > On 04/24/2012 11:16 PM, Jeff Layton wrote: > > On Tue, 24 Apr 2012 13:35:13 -0700 > > Greg KH<gre...@linuxfoundation.org> wrote: > > > >> On Tue, Apr 24, 2012 at 10:22:50PM +0200, Rik Theys wrote: > >>> Hi, > >>> > >>> I'm experiencing the following Red Hat bug[1] on RHEL and also on > >>> Debian. > >>> > >>> I've noticed Fedora has started to ship an update with two patches > >>> that reduce the footprint of the nfs4 id mapper which should prevent > >>> this (or seriously limit the chance). > >>> > >>> NFSv4: Further reduce the footprint of the idmapper > >>> commit 685f50f9188ac1e8244d0340a9d6ea36b6136cec > >>> > >>> NFSv4: Reduce the footprint of the idmapper > >>> commit d073e9b541e1ac3f52d72c3a153855d9a9ee3278 > >>> > >>> I believe Red Hat will have those patches in an upcoming RHEL 6.x > >>> release. > >>> > >>> I'm looking for feedback on if it would be possible to include > >>> these patches in a stable 3.2 update (and/or 3.0.x) so they > >>> will become part of the upcoming Debian 7.0 kernel (which is based > >>> on 3.2). > >>> > >>> Have these patches made it into the 3.3 and/or 3.4-rc kernels? > >> > >> Both of these are in the 3.4-rc1 kernel release. > >> > >> As for stable kernels, I don't see how they fit the rules outlined in > >> Documentation/stable_kernel_rules.txt, do you? > >> > > > > There have been reports on linux-nfs of problems allocating this memory > > in the past. > > > > I suspect most of those occurred when people attempt to do an NFS mount > > after memory is already heavily fragmented. This allocation was > > fricking huge before those patches... > > > > That said, I'm not sure that really qualifies as stable-kernel fodder... > > > > After rereading the stable_kernel_rules.txt I agree that this might be > too big for a stable update. > > I would still like to see these patches in the Debian 3.2 kernel (bug > report in cc). > > Do you consider these patches something distributions could/should > cherry pick for their kernels? I see from the RHEL 6.3 beta kernel > (2.6.32-262.el6) changelog that it includes these fixes? > Yeah, it should go into RHEL6.3, but we also pulled in the patches for the new idmapper too so we sort of had to take these... > Maybe you and/or Trond could comment on whether you are aware of any > dependencies or further fixes likely to be needed? > I think that set was relatively independent. -- Jeff Layton <jlay...@redhat.com> -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org