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charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: BL1PR12MB5144.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 9627ce6b-02e5-46c6-70c6-08d9d1fa30d0 X-MS-Exchange-CrossTenant-originalarrivaltime: 07 Jan 2022 16:24:33.9789 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: uHkcGZ0ZlHTevwypHUzUX/rLfwuEPvCcqCV729ULgxtFptFBOMSp13yzsf6hu/oyBP0a7QB3TTBalqM0LJwW7w== X-MS-Exchange-Transport-CrossTenantHeadersStamped: BL0PR12MB5539 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org [Public] > -----Original Message----- > From: Thorsten Leemhuis > Sent: Friday, January 7, 2022 5:59 AM > To: Linus Torvalds ; > regressions@lists.linux.dev > Cc: Song Liu ; Jens Axboe ; > wsa@kernel.org; Limonciello, Mario ; > Deucher, Alexander ; Koenig, Christian > ; Pan, Xinhui ; Linux > Kernel Mailing List > Subject: Special regressions report for the pending 5.16 release >=20 > Hi Linus, >=20 >=20 >=20 > a quick brief manual regressions report, as I assume you'll likely releas= e 5.16 > soon and thus might find this helpful. Below is a list of remaining regre= ssions > in 5.16-rc I'm currently aware of. >=20 >=20 > regressions where a fix exists >=20 > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ >=20 >=20 >=20 > * This fix afaics is not yet mainlined: >=20 > [PATCH] md/raid1: fix missing bitmap update w/o WriteMostly devices >=20 > https://nam11.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Flore. > kernel.org%2Fall%2F20220103230401.180704-1- > song%40kernel.org%2F&data=3D04%7C01%7Calexander.deucher%40amd. > com%7Ce1087ce64824412faec908d9d1ccbaf1%7C3dd8961fe4884e608e11a82 > d994e183d%7C0%7C0%7C637771500622271889%7CUnknown%7CTWFpbGZsb > 3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0 > %3D%7C3000&sdata=3DRlZm%2B2vPqhVO0Vuy1eNtAh%2FKuVjuPIIQ2Fo > 5RHXsp6U%3D&reserved=3D0 >=20 >=20 >=20 > But I'm pretty sure Jens (CCed) will send it onwards soon: >=20 > https://nam11.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Flore. > kernel.org%2Fall%2F499b185d-ff9a-934e-7768- > ec796244fa1a%40kernel.dk%2F&data=3D04%7C01%7Calexander.deucher > %40amd.com%7Ce1087ce64824412faec908d9d1ccbaf1%7C3dd8961fe4884e60 > 8e11a82d994e183d%7C0%7C0%7C637771500622271889%7CUnknown%7CTW > FpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJX > VCI6Mn0%3D%7C3000&sdata=3DrdgKJ4GDQsnmb5RF5ZXEn48Ra32mcuFW > n3esC1sDRr0%3D&reserved=3D0 >=20 >=20 >=20 > * There is an open regression "Applications that need amdgpu doesn't run > after waking up from suspend": >=20 > https://nam11.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Flore. > kernel.org%2Fall%2F1295184560.182511.1639075777725%40mail.yahoo.com% > 2F&data=3D04%7C01%7Calexander.deucher%40amd.com%7Ce1087ce648 > 24412faec908d9d1ccbaf1%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C > 0%7C637771500622271889%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLj > AwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000& > sdata=3DJn6vjdwISjMdm8tn0Pw0JSI1%2FD0JmUSiMCMX2FFD%2B70%3D& > ;reserved=3D0 >=20 >=20 >=20 > Wolfram (CCed) plans to revert a i2c commit to fix it, but I'm not sure i= f he > plans to send in onwards for 5.16 (or if that would be a good idea at all= ): >=20 > https://nam11.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Flore. > kernel.org%2Flkml%2F20220106122452.18719-1- > wsa%40kernel.org%2F&data=3D04%7C01%7Calexander.deucher%40amd. > com%7Ce1087ce64824412faec908d9d1ccbaf1%7C3dd8961fe4884e608e11a82 > d994e183d%7C0%7C0%7C637771500622271889%7CUnknown%7CTWFpbGZsb > 3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0 > %3D%7C3000&sdata=3D%2FibaOVHm2hqKUOf%2BGnQThVw2lsF3znB5v2 > Q41ja%2BDtM%3D&reserved=3D0 >=20 >=20 >=20 > * There are suspend and resume problems related to amdgpu: >=20 > https://nam11.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Fbugz > illa.kernel.org%2Fshow_bug.cgi%3Fid%3D215436&data=3D04%7C01%7Cal > exander.deucher%40amd.com%7Ce1087ce64824412faec908d9d1ccbaf1%7C3 > dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637771500622271889%7C > Unknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJB > TiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=3DvUyTuQkw3Z5bpIUkwf > IwHyc5kTKaG3TRr34Tl%2FXHGLo%3D&reserved=3D0 >=20 > Mario (CCed) recently found the root cause and came up with a fix, but it > likely needs a little more time to bake: >=20 > https://nam11.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Flore. > kernel.org%2Fall%2FBL1PR12MB5157F21C23A020052FF5C13BE24C9%40BL1PR > 12MB5157.namprd12.prod.outlook.com%2F&data=3D04%7C01%7Calexan > der.deucher%40amd.com%7Ce1087ce64824412faec908d9d1ccbaf1%7C3dd89 > 61fe4884e608e11a82d994e183d%7C0%7C0%7C637771500622271889%7CUnkn > own%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik > 1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=3Dz5%2FJB2I9ciDhwdvwxjPKZ > O1t49kwO3Br%2BhXdvUQgyoY%3D&reserved=3D0 >=20 >=20 > https://nam11.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Flore. > kernel.org%2Fall%2F20220106163054.13781-3- > mario.limonciello%40amd.com%2F&data=3D04%7C01%7Calexander.deuch > er%40amd.com%7Ce1087ce64824412faec908d9d1ccbaf1%7C3dd8961fe4884e > 608e11a82d994e183d%7C0%7C0%7C637771500622271889%7CUnknown%7CT > WFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLC > JXVCI6Mn0%3D%7C3000&sdata=3DTGrjrWX22DBOshfAiD9mh8diCq%2FkI > Mwg6xMdU03aLHc%3D&reserved=3D0 >=20 > no fix in sight >=20 > ~~~~~~~~~~~~~~~ >=20 >=20 >=20 > * screen contents do get restored after some input events (so it doesn't= stay > blank). >=20 > https://nam11.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Fbugz > illa.kernel.org%2Fshow_bug.cgi%3Fid%3D215203&data=3D04%7C01%7Cal > exander.deucher%40amd.com%7Ce1087ce64824412faec908d9d1ccbaf1%7C3 > dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637771500622271889%7C > Unknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJB > TiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=3D%2FpAS9qTCWx%2Br% > 2FS%2B9WRGC%2FcSFdgw5hWTZIRKHjp189Lg%3D&reserved=3D0 >=20 > (related: > https://nam11.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Fgitla > b.freedesktop.org%2Fdrm%2Famd%2F- > %2Fissues%2F1840&data=3D04%7C01%7Calexander.deucher%40amd.com > %7Ce1087ce64824412faec908d9d1ccbaf1%7C3dd8961fe4884e608e11a82d994 > e183d%7C0%7C0%7C637771500622271889%7CUnknown%7CTWFpbGZsb3d8 > eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3 > D%7C3000&sdata=3DhrNAXNori6%2BtgP8X6YEJT5V2Hsnm1mTiZNZI0y7XKL > A%3D&reserved=3D0 ) >=20 >=20 >=20 > Alex (CCed) is trying hard to find a fix for, but afaics needs more time. I already sent a workaround to restore the previous behavoir. It's on its = way to Linus in Dave's last -fixes PR. We are working on a proper fix hope= fully for 5.17. Alex >=20 >=20 >=20 > Need more time to analyse >=20 > ~~~~~~~~~~~~~~~~~~~~~~~~~ >=20 >=20 >=20 > I'm aware of two more reports that afaics need (a lot?) more time to > analyse: >=20 >=20 >=20 > * suspend issues for a user that faces another regression that might > interfer: >=20 > https://nam11.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Flore. > kernel.org%2Flinux- > pm%2F256689953.114854578.1640622738334.JavaMail.root%40zimbra40- > e7.priv.proxad.net%2F&data=3D04%7C01%7Calexander.deucher%40amd. > com%7Ce1087ce64824412faec908d9d1ccbaf1%7C3dd8961fe4884e608e11a82 > d994e183d%7C0%7C0%7C637771500622271889%7CUnknown%7CTWFpbGZsb > 3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0 > %3D%7C3000&sdata=3D4ycXrg1yKHneHJisDmUcSHnXTArFMDP2EZacmtIG > %2BqM%3D&reserved=3D0 >=20 > https://nam11.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Fbugz > illa.kernel.org%2Fshow_bug.cgi%3Fid%3D215427&data=3D04%7C01%7Cal > exander.deucher%40amd.com%7Ce1087ce64824412faec908d9d1ccbaf1%7C3 > dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637771500622271889%7C > Unknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJB > TiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=3Dxw15%2BdfZMQr%2BU > 5S9mexnYJyRW1UahrrBLUJRu15oDQ8%3D&reserved=3D0 >=20 >=20 >=20 > * 5-10% increase in IO latencies with nohz balance patch >=20 > https://nam11.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Flore. > kernel.org%2Flkml%2FYaUH5GFFoLiS4%252F3%252F%40localhost.localdomai > n%2F&data=3D04%7C01%7Calexander.deucher%40amd.com%7Ce1087ce6 > 4824412faec908d9d1ccbaf1%7C3dd8961fe4884e608e11a82d994e183d%7C0% > 7C0%7C637771500622271889%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4 > wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&a > mp;sdata=3DRt%2F06JdscRKj5nQKoXiM75l3JPjwwMQ8f9dx%2FsXSUDw%3D&a > mp;reserved=3D0 >=20 >=20 >=20 > Closing words >=20 > ~~~~~~~~~~~~~ >=20 >=20 >=20 > HTH, ciao, Thorsten