Hi, Thank you Oliver for taking care of this request. These errors can also be caused by a lack of power being supplied to the device itself. Being connected to a USB hub with insufficient power can also be an explanation for these sporadic errors. Regards, -- Stephane De : Oliver Hartkopp <socketcan@xxxxxxxxxxxx> Envoyé : vendredi 8 avril 2022 20:45 À : Paul Thomas <pthomas8589@xxxxxxxxx>; linux-can@xxxxxxxxxxxxxxx <linux-can@xxxxxxxxxxxxxxx>; Stéphane Grosjean <s.grosjean@xxxxxxxxxxxxxxx> Cc : Wolfgang Grandegger <wg@xxxxxxxxxxxxxx>; Marc Kleine-Budde <mkl@xxxxxxxxxxxxxx>; David S. Miller <davem@xxxxxxxxxxxxx>; Jakub Kicinski <kuba@xxxxxxxxxx>; netdev@xxxxxxxxxxxxxxx <netdev@xxxxxxxxxxxxxxx>; linux-kernel <linux-kernel@xxxxxxxxxxxxxxx>; PEAK-System support <support@xxxxxxxxxxxxxxx> Objet : Re: peak_usb: urb aborted On 08.04.22 18:35, Paul Thomas wrote: > Folks, > > I'm using a PCAN-USB adapter, and it seems to have a lot of trouble > under medium load. I'm getting these urb aborted messages. > [125054.082248] peak_usb 3-2.4.4:1.0 can0: Rx urb aborted (-71) > [125077.886850] peak_usb 3-2.4.4:1.0 can0: Rx urb aborted (-32) As I run the same hardware here it is very likely that you have a faulty CAN bus setup with - wrong bitrate setting / sample points / etc - wrong or no termination - missing or wrong configured (other) CAN nodes I added the maintainer of the PEAK USB adapter (Stephane) to the recipient list. Having the linux-can mailing list and Stephane in the recipient list is sufficient to answer the above details. Regards, Oliver > > Is there anything that can be done about this? This is very > frustrating because it makes the USB adapter very difficult to use as > a reliable partner of an embedded CAN device. > > I'm using Ubuntu with 5.4.0-107-generic. Any help would be appreciated. > > -Paul -- PEAK-System Technik GmbH Sitz der Gesellschaft Darmstadt - HRB 9183 Geschaeftsfuehrung: Alexander Gach / Uwe Wilhelm Unsere Datenschutzerklaerung mit wichtigen Hinweisen zur Behandlung personenbezogener Daten finden Sie unter www.peak-system.com/Datenschutz.483.0.html