** Changed in: linux (Ubuntu) Importance: Undecided => Medium ** Tags added: ppc64el
-- 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/1352640 Title: Huge PCI BAR support needed for Ubuntu 14.10 Status in “linux” package in Ubuntu: Confirmed Bug description: == Comment: #0 - Brian Hart <ha...@us.ibm.com> - 2014-08-04 17:26:34 == ---Problem Description--- Our project requires Huge BAR Support (i.e. support for PCI BAR spaces > 1G) in Ubuntu 14.10. Guo and Gavin are working on the kernel changes (and Sapphire/OPAL changes?) and have already submitted patches. The patches did not make the 3.16 cut-off, so will need to be back-ported to the 14.10 kernel. I believe the patches are the set described by: https://lists.ozlabs.org/pipermail/linuxppc-dev/2014-July/119170.html Contact Information = Brian Hart (ha...@us.ibm.com), Dave Marquardt (davem...@us.ibm.com) ---uname output--- Linux tul115p1 3.16.0-6-generic #11-Ubuntu SMP Mon Jul 28 02:00:45 UTC 2014 ppc64le ppc64le ppc64le GNU/Linux ---Additional Hardware Info--- Problem is seen with PCI adapters that request > 1G of BAR space. We've seen it with GPUs that request a BAR1 of size 16G. Machine Type = 8286-42A ---Debugger--- A debugger is not configured ---Steps to Reproduce--- Add a PCI adapter which requests huge BAR space in the system. The huge BARs will not be assigned and the adapter will likely not initialize. Stack trace output: no Oops output: no System Dump Info: The system is not configured to capture a system dump. *Additional Instructions for Brian Hart (ha...@us.ibm.com), Dave Marquardt (davem...@us.ibm.com): -Attach sysctl -a output output to the bug. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1352640/+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
