kernel-packages team mailing list archive
Mailing list archive
[Bug 1571798] Re: Broadwell ECRC Support missing in Ubuntu
ea584595fc85e65796335033dfca25ed655cd0ed was reported as the first bad
commit, but it is a merge:
Merge: 782d59c a092e19
Author: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Date: Thu Oct 9 14:58:15 2014 -0400
Merge tag 'gpio-v3.18-1' of
The bisect may have gone bad due to marking a test kernel good when it was actually bad or vice versa. We may need to test some of the previously posted kernels and ensure they were really bad or good.
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
Broadwell ECRC Support missing in Ubuntu
Status in linux package in Ubuntu:
Status in linux source package in Vivid:
Status in linux source package in Wily:
Status in linux source package in Xenial:
Status in linux source package in Yakkety:
Here is the problem statement from the Dell team:
When booting into Ubuntu 14.04.4 with a Broadwell CPU and an Intel
Quick Assist Card, the memory location that corresponds to ECRC is set
to 0x01e0, when the BIOS is setting this location 0x00a0 pre-OS boot.
This causes the card to not function unless we implement the following
workaround using setpci.
“setpci –s AA:BB.C 160.w=0”, where AA:BB.C is the PCI Root Path for
the Intel Quick Assit Card.
We’ve verified the memory location is correct when booting to other
OSes, such as RHEL 7.2 and Windows Server 2012 R2.
If there is any information you can give as to why this may be
occurring in Ubuntu or where we may start to debug when the memory is
changed, we would appreciate it.
To manage notifications about this bug go to: