I installed 4.13.0-35-generic from artful-proposed. The kernel boots and
X starts fine, so this has passed verification.
** Tags removed: verification-needed-artful
** Tags added: verification-done-artful
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hisilicon hibmc regression due to ea642c3216cb ("drm/ttm: add
Status in linux package in Ubuntu:
Status in linux source package in Artful:
On Artful kernels, X fails to start and a kernel splat is printed.
This is cbecause ea642c3216cb ("drm/ttm: add io_mem_pfn callback") is
incomplete: the hisilicon hibmc driver does not contain the callback
and so the kernel tries to execute code at NULL.
There is a discussion and potential fix at
fix hasn't landed yet and it looks like they're going to re-engineer the entire
Rather than wait for that and deal with the massive regression
potential, the fix I have picked to submit is very very minimal and
touches only hibmc.
Minimal - fix only touches hibmc driver. Tested on D05 board.
Install patched kernel, try to start X. If it succeeds, the fix works. If
there's a kernel splat, the fix does not work.
HiSilicon would really like this fix in Artful in such time so that when the
next 16.04 point release ships in February, the HWE kernel will work with Xorg.
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