Jan Kiszka <[email protected]> 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 <[email protected]>: >> >>> Am Wed, 10 Feb 2021 12:08:43 +0100 >>> schrieb Jan Kiszka via Xenomai <[email protected]>: >>> >>>> 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. -- Philippe.
