USB Lockups
More experience with USB lockups here.
I have an Apollo Pro (694x) and an Apollo Super South (686b), and it's interesting how quickly this machine freezes under 2.4.18-pre1. All I have to do is send about 100KiB/second over my NIC and the USB (moving the mouse and tapping on the keys on my USB HID devices causes a hard lock with no messages of any kind. Can't even get a serial console.)
Tried with UHCI and JE driver. JE doesn't recognize the USB controller half the time. It seems to me that this is similar to the problem with a saturated PCI bus that someone posted a latency fix for. I'd appreciate any input. A similar machine does this on windows as well, too. BIOS is as late as it gets.
-------
Michael Cohen
Quoted 13 lines · Michael Cohen
More experience with USB lockups here.
I have an Apollo Pro (694x) and an Apollo Super South (686b), and it's interesting how quickly this machine freezes under 2.4.18-pre1. All I have to do is send about 100KiB/second over my NIC and the USB (moving the mouse and tapping on the keys on my USB HID devices causes a hard lock with no messages of any kind. Can't even get a serial console.)
Tried with UHCI and JE driver. JE doesn't recognize the USB controller half the time. It seems to me that this is similar to the problem with a saturated PCI bus that someone posted a latency fix for. I'd appreciate any input. A similar machine does this on windows as well, too. BIOS is as late as it gets.
Doesn't recognize the USB controller half the time? This is something I would expect to either work all of the time, or none of the time.
Do you get any error messages?
JE
Quoted 10 lines
Quoted 5 lines
Tried with UHCI and JE driver. JE doesn't recognize the USB controller half the time. It seems to me that this is similar to the problem with a saturated PCI bus that someone posted a latency fix for. I'd appreciate any input. A similar machine does this on windows as well, too. BIOS is as late as it gets.
Doesn't recognize the USB controller half the time? This is something I would expect to either work all of the time, or none of the time.
Do you get any error messages?
The JE driver strangely seems to be an unstable beast on here. It more often does not work, though every once in a while it wakes up on boot. I've stuck with the standard. As for error messages, "No devices found" is the only one I get with the standard driver (when nothing is plugged in :). Oh, it's SMP PIII.
------
Michael Cohen
Quoted 7 lines
JE
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Quoted 9 lines · Michael Cohen
Quoted 9 lines
Quoted 5 lines
Tried with UHCI and JE driver. JE doesn't recognize the USB controller half the time. It seems to me that this is similar to the problem with a saturated PCI bus that someone posted a latency fix for. I'd appreciate any input. A similar machine does this on windows as well, too. BIOS is as late as it gets.
Doesn't recognize the USB controller half the time? This is something I would expect to either work all of the time, or none of the time.
Quoted 7 lines
Quoted 1 line
Do you get any error messages?
The JE driver strangely seems to be an unstable beast on here. It more often does not work, though every once in a while it wakes up on boot. I've stuck with the standard. As for error messages, "No devices found" is the only one I get with the standard driver (when nothing is plugged in :). Oh, it's SMP PIII.
It'll say that if usb-uhci is loaded since it has claimed all of the host controllers.
What sort of instability are you seeing?
JE