Attempting to install on RPi4B w/ UEFI, having some problems

[tech-lists]

On Thu, Sep 10, 2020 at 10:11:19PM +0200, Robert Clausecker wrote:
>
>Some things don't seem to work correctly:
>
>* if I plug the USB drive into a USB 3.0 port, everything works fine until
>  root is mounted.  At that point, every further disk access fails with IO
>  errors:
>
>(da0:umass-sim0:0:0:0): READ(10). CDB: 28 00 01 80 a0 c1 00 00 07 00
>(da0:umass-sim0:0:0:0): CAM status: CCB request completed with an error
>(da0:umass-sim0:0:0:0): Retrying command, 3 more tries remain
>

I was seeing something like this. I applied D26344 to the sources (am now on
r365391M) and rebuilt, and the problem is fixed.

My context differs a little bit because I use u-boot. But was getting the usb3
hd resetting trying to write anything over about 2GB to the usb3 disk. dd
if=/dev/random of=/usb3mountpoint/bigfilename.bin bs=1m count=3000 would do
it. I've not checked yet with md5/sha256 actually transferring files yet
though. I'll try this when the system is less busy and post results here.

In the meantime, the 1Tb external disk is zfs mounted at /usr/local and is
running a poudriere(-devel) instance happily with loads over 10.00 and am
seeing no filesystem or usb errors. It's as, if not more, responsive than an
amd64 i7 system at similar load. I'm using GENERIC-NODEBUG now, but with no
other changes like MALLOC_PRODUCTION though.
-- 
J.
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