Re: 13.0-RELEASE Poor performance on Raspberry pi 3 B+
Mark Millard via freebsd-arm <[email protected]>
| Newsgroups | gmane.os.freebsd.devel.arm |
|---|---|
| Message-ID | <[email protected]> |
On 2021-Nov-26, at 10:35, Juan David Hurtado G <[email protected]> wrote: > Thank you so much for your time you all. > > New microSD arrived today. It is a SanDisk Ultra, see this on the Raspberry > pi 3B+: > > ``` > root@generic:~ # dmesg | grep -i mmc > mmc0: <MMC/SD bus> on sdhci_bcm0 > mmcsd0: 32GB <SDHC SD32G 8.5 SN A0169EA9 MFG 04/2021 by 3 SD> at mmc0 > 50.0MHz/4bit/65535-block > ``` > > 50 MHz !! What a relief. > > Other OS like RaspiOS and NetBSD runs well on the other cards, not sure > why. I still don't understand why sandisk is the only brand that works for > FreeBSD apparently. I have non-sandisk microsd cards that work fine --and other sandisk models of microsd cards that also work. Mostly I use non-ultra sandisk ones as it turns out. But once I could boot via USB I no longer use microsd cards very often in the RPi*'s that can boot from USB without a microsd card involved. > I'm willing to give more information if needed or even to open a ticket in > bugzilla if you find it useful. It does not seem that my direction of activity is relevant if it is media-type specific for the behavior. So I'll not be experimenting further with any RPi4B's (or otherwise). But if you make a bugzilla report, various things about your RPi* configurations that you have reported would be appropriate to include as context. > Have a great weekend !! > > PS: I've also bought the usb ttl cable if I can give any more information > using the other card via serial console. There are various settings for getting more debug output on the serial console for the RPi* stages of things. Some go in the config.txt but one goes in the eeprom content. As stands it does not seem that such would have helped for the specific problem: The problem is later, after the RPi* eeprom and firmware stages. You may never need such, but at least you are forwarned about the possibility if you think it might help something in the future. === Mark Millard marklmi at yahoo.com ( dsl-only.net went away in early 2018-Mar)