Messages in this thread | | | Date | Wed, 31 Aug 2022 15:02:46 +0200 | Subject | Re: [PATCH AUTOSEL 5.19 24/33] fec: Restart PPS after link state change | From | Csókás Bence <> |
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On 2022. 08. 30. 19:18, Sasha Levin wrote: > From: Csókás Bence <csokas.bence@prolan.hu> > > [ Upstream commit f79959220fa5fbda939592bf91c7a9ea90419040 ] > > On link state change, the controller gets reset, > causing PPS to drop out and the PHC to lose its > time and calibration. So we restart it if needed, > restoring calibration and time registers.
There is an ongoing investigation on netdev@ about a potential kernel panic on kernels newer than 5.12 with this patch applied. Please hold off on backporting to 5.19 until the bugfix is applied to upstream.
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