From mboxrd@z Thu Jan 1 00:00:00 1970 References: <7c43aa40-9754-2529-8bc7-7df8c7124a96@siemens.com> <126b2b25b43ff4acbc3e5ffb902239e69fc67bfe.camel@siemens.com> <20210224112455.56da9faf@md1za8fc.ad001.siemens.net> <20210224123511.529fe032@md1za8fc.ad001.siemens.net> <87zgzs6ymo.fsf@xenomai.org> <12bfdd83-f44f-f152-9601-6f1038e4212a@siemens.com> <87tuq06xiq.fsf@xenomai.org> From: Philippe Gerum Subject: Re: [I-PIPE] ipipe-core-4.19.165-cip41-arm64-09 released In-reply-to: Date: Mon, 01 Mar 2021 17:53:40 +0100 Message-ID: <878s767r3f.fsf@xenomai.org> MIME-Version: 1.0 Content-Type: text/plain List-Id: Discussions about the Xenomai project List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Jan Kiszka Cc: Henning Schild , Henning Schild via Xenomai , "Bezdeka, Florian (T RDA IOT SES-DE)" Jan Kiszka writes: > On 25.02.21 15:18, Philippe Gerum wrote: >> >> Jan Kiszka writes: >> >>> On 25.02.21 14:54, Philippe Gerum wrote: >>>> >>>> Jan Kiszka writes: >>>> >>>>> On 24.02.21 12:35, Henning Schild via Xenomai wrote: >>>>>> Am Wed, 24 Feb 2021 11:24:55 +0100 >>>>>> schrieb Henning Schild via Xenomai : >>>>>> >>>>>>> Am Wed, 10 Feb 2021 12:08:43 +0100 >>>>>>> schrieb Jan Kiszka via Xenomai : >>>>>>> >>>>>>>> On 10.02.21 11:07, Bezdeka, Florian (T RDA IOT SES-DE) wrote: >>>>>>>>> On Wed, 2021-02-10 at 09:15 +0100, Jan Kiszka via Xenomai wrote: >>>>>>>>> >>>>>>>>>> On 10.02.21 07:22, xenomai--- via Xenomai wrote: >>>>>>>>>>> Download URL: >>>>>>>>>>> https://xenomai.org/downloads/ipipe/v4.x/arm64/ipipe-core-4.19.165-cip41-arm64-09.patch >>>>>>>>>>> >>>>>>>>>>> Repository: https://git.xenomai.org/ipipe-arm64 >>>>>>>>>>> Release tag: ipipe-core-4.19.165-cip41-arm64-09 >>>>>>>>>>> >>>>>>>>>> >>>>>>>>>> Hmm, now we have the 5.4-arm64 issue also on 4.19: >>>>>>>>>> https://gitlab.denx.de/Xenomai/xenomai-images/-/jobs/219984 >>>>>>>>>> >>>>>>>>> >>>>>>>>> I don't know much about the things going on here, but found this >>>>>>>>> line in the log. Maybe a starting point... >>>>>>>>> >>>>>>>>> 2021-02-10T07:51:47 setsched.c:120, assertion failed: stats.msw == >>>>>>>>> msw >>>>>>>> >>>>>>>> Exactly, that is causing the overall failure. And it was first seen >>>>>>>> with the newly added 5.4 kernel. >>>>>>> >>>>>>> Seing the same on amd64 when testing on qemu, real HW is fine. >>>>>>> >>>>>>> Managed to bisect it down to 4.19.147-cip (good) 4.19.150-cip (bad) >>>>>>> >>>>>>> Which also means that ipipe-core-4.19.152-cip37-x86-15 is affected. >>>>>>> >>>>>>> https://gitlab.denx.de/Xenomai/xenomai-images/-/jobs/200646 >>>>>>> did not find it, so maybe our config differs >>>>> >>>>> Already compared yours against the one in xenomai-images? That would be >>>>> useful. >>>>> >>>>>> >>>>>> Digging further i found 0f0b6099c45ff3e06d2487816cf1ff30d21835f6 likely >>>>>> causing the problem. >>>>>> >>>>>> ipipe-core-4.19.152-cip37-x86-15 <- bad >>>>>> revert 2b294ac325c7ce3f36854b74d0d1d89dc1d1d8b8 >>>>>> revert 8579a0440381353e0a71dd6a4d4371be8457eac4 <- bad >>>>>> revert 0f0b6099c45ff3e06d2487816cf1ff30d <- good >>>>>> >>>>>> I think here Jan or Phillipe should take over. >>>>> >>>>> Thanks for bisecting, this is helpful! >>>>> >>>>> Philippe, any immediate idea why all that is failing now? >>>> >>>> Something may be going wrong with MAP_SHARED mappings wrt commit_vma() >>>> in Dovetail. I'm adding this to my debug queue. >>>> >>> >>> This is still I-pipe, not a dovetail-related issues. >> >> This I-pipe release mimics what Dovetail does wrt mm pinning. >> > > Any news on this from your side? > No time slot for working on this yet. High multiplexing rate ATM. -- Philippe.