problem with dwmmc ? panic's on bad filesystem...

Søren Schmidt soren.schmidt at gmail.com
Fri Mar 12 18:53:27 UTC 2021


On 12 Mar 2021, at 13.53, Michal Meloun <meloun.michal at gmail.com> wrote:
> 
>>>> 
>>>> Seems like it's the same issue.
>>>> Your hitting EFBIG from bus_dmamap_load.
>>>> Does that happens everytime ?
>>> 
>>> Yes it does.
>>> 
>>>> Does that happens if you disable journaling or softupdate ?
>>> 
>>> Journalling seems to be what triggers this error.
>>> 
>>> 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=f635cef2a4206fb4e077412c493f218a6a26a3daSøren,

Yes and the patch is in stable13 as well, but clearly doesn’t 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’l look into that when I’m back home ..

--
Søren Schmidt
sos at deepcore.dk / sos at freebsd.org
"So much code to hack, so little time"





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