Re: 60+% ping packet loss on Pi3 under -current and stable-13

From: bob prohaska <fbsd_at_www.zefox.net>
Date: Tue, 03 May 2022 02:23:10 UTC 
On Mon, May 02, 2022 at 06:48:58PM +0200, Hans Petter Selasky wrote:
> 
> You may also want to correlate:
> 
> usbconfig dump_stats
> 
On the -current Pi3 I see in part:
ugen1.4: <JMicron SABRENT> at usbus1, cfg=0 md=HOST spd=HIGH (480Mbps) pwr=ON (500mA)

{
    UE_CONTROL_OK       : 83
    UE_ISOCHRONOUS_OK   : 0
    UE_BULK_OK          : 3730195
    UE_INTERRUPT_OK     : 0
    UE_CONTROL_FAIL     : 0
    UE_ISOCHRONOUS_FAIL : 0
    UE_BULK_FAIL        : 61
    UE_INTERRUPT_FAIL   : 0
}
That's the USB3 hard disk boot drive. All other devices report zero bulk fails. 



> with netstat for ue0 .
>
On the same machine one gets:

root@www:/home/bob # netstat -i -n ue0
Name    Mtu Network       Address              Ipkts Ierrs Idrop    Opkts Oerrs  Coll
lo0   16384 <Link#1>      lo0                    185     0     0      185     0     0
lo0       - ::1/128       ::1                      0     -     -        0     -     -
lo0       - fe80::%lo0/64 fe80::1%lo0              0     -     -        0     -     -
lo0       - 127.0.0.0/8   127.0.0.1              185     -     -      185     -     -
ue0    1500 <Link#2>      b8:27:eb:71:46:4e   244278     0     0   213240     0     0
ue0       - 50.1.20.0/24  50.1.20.28          213957     -     -   210970     -     -
root@www:/home/bob # 
Nothing obviously amiss....if I'm looking at the right data. 

> Especially the BULK column. If something is wrong on the USB level, it will
> show up there.
>

On a whim, I checked a Pi4 running -current which also has a usb-sata boot drive.
It reports UE_BULK_FAIL        : 56 for the disk and performance seems good.

An old Pi2 running -current with a relatively old USB2-sata boot disk
reports zero bulk errors. No bulk errors seems desirable, but is some
non-zero error rate normal? 

All three machines have been updated within a couple of days.  

Thanks for writing!

bob prohaska