On Fri, 6 Jan 2006, Rene Herman wrote: > Confirmed to not solve the "async schedule activation" problem. This is > my lspci -xxx -s 9.2, with your patch applied, with ehci-hcd loaded, > before switching on the USB2 drive (hda still at 50MB/s): > > 00:09.2 USB Controller: VIA Technologies, Inc. USB 2.0 (rev 63) > 00: 06 11 04 31 17 01 10 02 63 20 03 0c 10 40 80 00 > 10: 00 fe ff ef 00 00 00 00 00 00 00 00 00 00 00 00 > 20: 00 00 00 00 00 00 00 00 00 00 00 00 06 11 04 31 > 30: 00 00 00 00 80 00 00 00 00 00 00 00 03 03 00 00 > 40: 40 00 03 00 00 00 00 00 a0 20 00 09 00 00 ff ff
> After switching on the USB2 drive (hda at 42MB/s) only byte 0x52 > changes, from 0x00 to 0x04. Probably unrelated. The important thing is that byte 0x40 is now 0x40. Test that for a while and see if you get any more spontaneous disconnects. BTW, I tried "hdparm -t /dev/hda" on my computer, in single-user mode with nothing else running besides the logger process. Entering the same command several times in a row gave values ranging from 23 MB/s to 54 MB/s. So it's not clear how reliable any single value is. Alan Stern ------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Do you grep through log files for problems? Stop! Download the new AJAX search engine that makes searching your log files as easy as surfing the web. DOWNLOAD SPLUNK! http://ads.osdn.com/?ad_id=7637&alloc_id=16865&op=click _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
