Messages in this thread | | | Subject | Re: [REGRESSION] PCI v5.5-rc1 breaks google kevin | From | Robin Murphy <> | Date | Thu, 12 Dec 2019 00:12:56 +0000 |
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Hi Vicente,
On 2019-12-11 11:38 pm, Vicente Bergas wrote: > Hi, > since v5.5-rc1 the google kevin chromebook does not boot. > Git bisect reports 5e0c21c75e8c PCI/ASPM: Remove pcie_aspm_enabled() > unnecessary locking > as the first bad commit. > > In order to revert it from v5.5-rc1 i had to also revert some dependencies: > 5e0c21c75e8c08375a69710527e4a921b897cb7e > aff5d0552da4055da3faa27ee4252e48bb1f5821 > 35efea32b26f9aacc99bf07e0d2cdfba2028b099 > 687aaf386aeb551130f31705ce40d1341047a936 > 72ea91afbfb08619696ccde610ee4d0d29cf4a1d > 87e90283c94c76ee11d379ab5a0973382bbd0baf > After reverting all of this, still no luck. > So, either the results of git bisect are not to be trusted, or > there are more bad commits. > > By "does not boot" i mean that the display fails to start and > the display is the only output device, so debugging is quite difficult.
Assuming it's a manifestation of the same PCI breakage that Enric and Lorenzo figured out, there's a proposed fix here: https://lkml.org/lkml/2019/12/11/199
Robin.
> v5.5-rc1 as is (reverting no commits at all) works fine when disabling PCI: > # CONFIG_PCI is not set > > Regards, > Vicente. > > > _______________________________________________ > Linux-rockchip mailing list > Linux-rockchip@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/linux-rockchip
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