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Date:      Fri, 12 Mar 2021 19:53:23 +0100
From:      =?utf-8?Q?S=C3=B8ren_Schmidt?= <soren.schmidt@gmail.com>
To:        mmel@freebsd.org
Cc:        "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net>, Emmanuel Vadot <manu@bidouilliste.com>, freebsd-arm <freebsd-arm@freebsd.org>
Subject:   Re: problem with dwmmc ? panic's on bad filesystem...
Message-ID:  <BEC849C1-06C1-4DF8-A1ED-B86EE3B42BCF@gmail.com>
In-Reply-To: <5c717a50-d18d-088d-97ef-0a8043e96e86@freebsd.org>
References:  <794EB96E-2F5D-4F41-BAD8-DEFDB9BDE530@gmail.com> <246a8c2f-bec7-2880-56f6-2baa677e4b2d@FreeBSD.org> <ACA1B34D-2C53-4733-9E7F-5DFC5F3FE84E@gmail.com> <20210312110930.9091f4fb9cea65a6ca7933e0@bidouilliste.com> <33616974-30A2-41E5-B177-8259CC08F60D@gmail.com> <C54FDFB7-8500-4257-B2C6-F7D7A5BCDD8E@lists.zabbadoz.net> <5c717a50-d18d-088d-97ef-0a8043e96e86@freebsd.org>

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On 12 Mar 2021, at 13.53, Michal Meloun <meloun.michal@gmail.com> wrote:
>=20
>>>>=20
>>>> Seems like it's the same issue.
>>>> Your hitting EFBIG from bus_dmamap_load.
>>>> Does that happens everytime ?
>>>=20
>>> Yes it does.
>>>=20
>>>> Does that happens if you disable journaling or softupdate ?
>>>=20
>>> Journalling seems to be what triggers this error.
>>>=20
>>> The last (error) request contains 0 segs and a non %blocksize length =
if that helps.
>> This sounded familiar;  I am not sure what happened to the comments =
from   this:  https://reviews.freebsd.org/D26735
> It was reincarnated to =
https://cgit.freebsd.org/src/commit/sys/arm64/arm64/busdma_bounce.c?id=3Df=
635cef2a4206fb4e077412c493f218a6a26a3daS=C3=B8ren,

Yes and the patch is in stable13 as well, but clearly doesn=E2=80=99t =
fix the issue

> is the problem reproducible also on current ?
> If yes are you able to dump VA and size of buffer passed to last call =
to bus_dmamap_load?

I=E2=80=99l look into that when I=E2=80=99m back home ..

--
S=C3=B8ren Schmidt
sos@deepcore.dk / sos@freebsd.org
"So much code to hack, so little time"






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