The Issue: Scanning (with xsane 0.999) while using kernel 4.8 (I tested 4.8 rc1, rc5, rc7, rc8, and 4.8.1) fails when the scanner becomes disconnected from the USB bus. Every time.
Scanning (with xsane 0.999) while using kernel 4.7.0 or earlier 4's works without fail. My scanner is known to lsusb as "Bus 006 Device 002: ID 04a9:2206 Canon, Inc. CanoScan N650U/N656U" and to Xsane as "Canon CanoScan N650U/N flatbed scanner [plustek:libusb:006:002]". Relevant lines from /var/log/kern.log at the time of the disconnect: Oct 14 13:30:00 quiz kernel: [ 167.746817] ohci-pci 0000:00:12.0: HcDoneHead not written back; disabled Oct 14 13:30:00 quiz kernel: [ 167.746829] ohci-pci 0000:00:12.0: HC died; cleaning up Oct 14 13:30:00 quiz kernel: [ 167.746916] usb 6-1: USB disconnect, device number 2 Oct 14 13:30:00 quiz kernel: [ 167.747618] usb 6-3: USB disconnect, device number 3 Oct 14 13:30:00 quiz kernel: [ 167.747624] usb 6-3.2: USB disconnect, device number 4 Oct 14 13:30:00 quiz kernel: [ 167.803283] usb 6-3.3: USB disconnect, device number 5 This is on an asrock 970M Pro3 motherboard w/AMD FX-8300 CPU and 32GB RAM running debian testing/9. Kernels built from kernel.org without further patching. Apologies for posting to wrong place (bugzilla) and happy to provide more info. Thanks, Joe -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
