Dan, I haven’t tried to directly reproduce the bug, but I have a few ideas. If I can free up some time I’ll see if I can reproduce it.
Dave Muysson | Cloud Architect dave.muys...@360pi.com <mailto:dave.muys...@360pi.com> | (613) 562-2525 x 510 <tel:6135622525,510> | 360pi.com <http://360pi.com/> > On Oct 13, 2015, at 9:20 AM, Dan Streetman <dan.street...@canonical.com> > wrote: > > Hi Dave, > > are you able to reproduce the bug? The trace by itself isn't terribly > helpful, all it really says is the pageblock spans zones, which means > move_freepages_block() logic for detecting that failed for some reason. I > have a debug kernel ppa here: > pad.lv/ppa/ddstreet/lp1497428 > > that includes additional debug if the problem happens (it also should > prevent the BUG()). If you can use that kernel to trigger this and send > the resulting debug output it would help very much :-) > > when the problem reproduces, in the system log you should see: > page_zone(start_page) !=page_zone(end_page) > > and more debug following that. It should not trigger BUG() though, so > you may need to check the logs periodically. > > Thanks! > > -- > You received this bug notification because you are subscribed to the bug > report. > https://bugs.launchpad.net/bugs/1497428 > > Title: > kernel BUG at /build/buildd/linux-3.13.0/mm/page_alloc.c:968 > > Status in linux package in Ubuntu: > In Progress > Status in linux source package in Trusty: > In Progress > > Bug description: > The kernel triggers a BUG when it finds it is in move_freepages() but > the start and end pfns for the move are in different zones. > > To manage notifications about this bug go to: > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1497428/+subscriptions -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1497428 Title: kernel BUG at /build/buildd/linux-3.13.0/mm/page_alloc.c:968 Status in linux package in Ubuntu: In Progress Status in linux source package in Trusty: In Progress Bug description: The kernel triggers a BUG when it finds it is in move_freepages() but the start and end pfns for the move are in different zones. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1497428/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
