Messages in this thread | | On 06/22/2017 09:12 AM, Al Viro wrote: > On Wed, Jun 21, 2017 at 04:49:46PM -0500, Larry Finger wrote: >> On 06/21/2017 04:34 PM, Al Viro wrote: >>> On Wed, Jun 21, 2017 at 04:31:40PM -0500, Larry Finger wrote: >>>> On 06/21/2017 04:22 PM, Al Viro wrote: >>>>> How about the .config that works on parent of that commit? >>>> >>>> Attached. >>> >>> OK... am I right assuming straight jessie/powerpc userland? >>> >> >> Actually Mint 12 with noting fancy. The machine mainly exists to test the >> wireless drivers work on big-endian hardware. >> >> 'cat /etc/issue' reports "Debian GNU/Linux 7". > > Ugh... MintPPC appears to be dead. On KVM with Debian userland (either > jessie or wheezy - no difference in result) booting the commit in > question with your .config oopses as soon as pata_macio is initialized, > due to the bug in "treewide: Move dma_ops from struct dev_archdata into > struct device", and after cherry-picking your own fix for that (commit > 46f401c4297a "powerpc/pmac: Fix crash in dma-mapping.h with NULL dma_ops") > the result boots just fine. > > Again, that happens both for Debian 8 and Debian 7 userlands, so unless > Mint had been doing something very odd there, I would question the accuracy > of your bisect...
Any chance that real hardware differs from KVM emulation? All I know at this point is that commit f2ed8beb with 46f401c4 backported boots OK and commit 3448890c with the same backport fails.
I will try loading jessie and see what happens.
Thanks for investigating.
Larry
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