Wow. It's very cool that you do automated tests for upcoming changes :) This particular bug was already caught in review by Bjorn. Regards, Jacek -----Original Message----- From: kernel test robot [mailto:ying.huang@linux.intel.com] Sent: Tuesday, January 26, 2016 1:59 AM To: Lawrynowicz, Jacek <jacek.lawrynowicz(a)intel.com&gt; Cc: lkp(a)01.org; LKML <linux-kernel(a)vger.kernel.org&gt;; Joerg Roedel <jroedel(a)suse.de&gt;; Woodhouse, David <david.woodhouse(a)intel.com&gt;; Wu, Fengguang <fengguang.wu(a)intel.com&gt; Subject: [lkp] [pci] 2910b5bdc5: pci 0000:06:00.0: Unable to allocate DMA alias mask. FYI, we noticed the below changes on https://github.com/0day-ci/linux Jacek-Lawrynowicz/pci-Add-support-for-multiple-DMA-aliases/20160119-001005 commit 2910b5bdc5788de99e9c533be97b0e8f57be0386 ("pci: Add support for multiple DMA aliases") We found the following new message in kernel log after your commit. [ 0.217837] pci 0000:06:00.0: Unable to allocate DMA alias mask. Thanks, Ying Huang