Bo Shen a écrit : > Hi Alan, > > On 3/4/2013 23:16, Alan Stern wrote: >> On Mon, 4 Mar 2013, Bo Shen wrote: >> >>> Hi Alan, >>> >>> On 02/26/2013 04:54 AM, Alan Stern wrote: >>>> Sarah (and anyone else who's interested): >>>> >>>> A while ago I wrote about a hardware bug in my Intel ICH5 and ICH8 EHCI >>>> controllers. You pointed out that these are rather old components, not >>>> being used in current systems, which is quite true. >>> I test this on Atmel at91sam9x5ek board with Linux-3.8. And get the >>> similar information. So please indicate me more detail information about >>> the bug. (Sorry for not catch the hardware bug e-mail) >> The problem is explained in more detail here: >> >> http://marc.info/?l=linux-usb&m=135492071812265&w=2 >> >> Note that the test program itself requires a small fix, which was >> posted here: >> >> http://marc.info/?l=linux-usb&m=136226443502631&w=2 >> > > Thanks. > >> If you don't mind, I'd like to see the kernel log from your test run. > > The dmesg log information as following: > > root@at91sam9x5ek:~# ./ehci-test /dev/bus/usb/001/003 > atmel-ehci 700000.ehci: EHCI hardware bug detected: 82008d80 00008d00 > atmel-ehci 700000.ehci: EHCI hardware bug detected: 02008d80 80008d00 > atmel-ehci 700000.ehci: EHCI hardware bug detected: 02008d80 80008d00 > atmel-ehci 700000.ehci: EHCI hardware bug detected: 82008d80 00008d00 > atmel-ehci 700000.ehci: EHCI hardware bug detected: 82008d80 00008d00 > atmel-ehci 700000.ehci: EHCI hardware bug detected: 02008d80 80008d00 > atmel-ehci 700000.ehci: EHCI hardware bug detected: 82008d80 00008d00 > atmel-ehci 700000.ehci: EHCI hardware bug detected: 02008d80 80008d00 > atmel-ehci 700000.ehci: EHCI hardware bug detected: 82008d80 00009d00 > Do you know which vendor did the ehci IP that is in your atmel SOC. Matthieu -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
