On Monday 26 October 2009 14:37:59 M. Warner Losh wrote: > In message: <86skd6cmm8....@ds4.des.no> > > Dag-Erling_Smørgrav <d...@des.no> writes: > : "M. Warner Losh" <i...@bsdimp.com> writes: > : > FreeBSD lighthouse 9.0-CURRENT FreeBSD 9.0-CURRENT #41 r185338:198411M: > : > Fri Oct 23 10:08:48 MDT 2009 > : > i...@lighthouse:/cache/svn/head/sys/amd64/compile/LIGHTHOUSE amd64 > : > > : > so it would have r197682 baked in (the first number in my rev string > : > is a mystery to me). > : > : It means you have an inconsistent tree. The first number is the oldest > : revision in your tree, the second is the newest, and the M means you > : have local modifications. > > Yes. Of course I have local modifications, but none in the usb stack. > But I've also done a svn update from the top of the tree multiple > times and this version number persists. > > : > Re another post: This is a 8GB flash, so I'm sure that there's enough > : > power. > : > : Non sequitur. Bigger chips draw more power. Is it plugged directly > : into the computer? If not, is it plugged into a powered hub? How many > : other devices are connected to the computer or hub? >
Hi, > Not entirely. This flash has worked in this computer in the past > without issues (like a year ago when we were first integrating hpsusb > into the tree). Since then there has been at least one patch to improve performance in the EHCI driver. When the cat command stops, could you try to run: usbconfig -u XXX -a YYY dump_device_desc dump_curr_config_desc On that device. Is usbconfig able to extract the string descriptors in the device and config descriptor? Or do you get timeouts? Also check vmstat -i . > This flash is plugged directly into the computer. > This behavior is consistent across multiple ports on the computer (so > it isn't a bad port). While this doesn't prove it isn't a power > issue, the odds are stacked against it being one. If there were a way > to get the internal hub to tell me how much power it can deliver, and > for me to query the flash to see maximum current draws, we could see > if we're close to the edge or not... Usually the maximum current is given by the device descriptor, but it might now be the actual value. See usbconfig dump_device_desc. --HPS _______________________________________________ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "freebsd-hackers-unsubscr...@freebsd.org"
