On Sat, 31 Oct 2009, Alan Stern wrote:
On Sat, 31 Oct 2009, Justin Piszcz wrote:
Hello,
SUMMARY: P55 Chipset/USB has issues with UPS' (broken pipe on 3 diff UPS')
WORKAROUND: Buy/use PCI USB card if you want to use nut/connect a UPS.
NOTES: All other USB (non-UPS) devices seem to function without any
problems.
On Thu, 29 Oct 2009, Justin Piszcz wrote:
Problem: When I migrated from a DG965WH -> DP55KG motherboard, there were
quite a bit of issues, host still does not reboot without special flags, e.g.
reboot=a, the NIC driver is broken with the in-kernel version (the one on
e1000.sourceforge) fixes that and finally my UPS USB has driver stale
problems, with two issues already relating to the HW/drivers themselves it
would not be unrealistic to speculate that there could be an issue with the
USB chipset/driver with this P55 motherboard.
--
Tried another APC 1500VA UPS, same problem occurs, different cable/port etc.
Problem appears to be the Intel P55KG / USB Chipset in the way that it
handles usbhid-raw devices as CD/USB sticks/kbd/mouse/etc do not appear to
be affected.
So far all other USB devices work fine, with the exception of UPS', I
have tested two APC 1500VA (one an RS the other an XS), in addition I also
have a 'BELKIN 1200VA UPS with AVR' from a long time ago, the same
problem occurs.
...
A bit frustrated, I popped in a PCI card with 4 external USBs, and now no
more errors:
We might learn something by comparing two usbmon logs for the same UPS
device, one plugged into a USB port on the motherboard and the other
plugged into an add-on card.
Alan Stern
Hi Alan,
Got it--two runs:
1. 5 minutes of usbmon output on via chipset [working]
2. 5 minutes of usbmon output on intel p55 usb chipset [ehci/not working]
--
ORDER:
1. cat 0u | tee /tmp/1.mon.out
2. /etc/init.d/nut start
3. sleep 300; killall -9 cat
--
OUTPUT:
----
Issues/5-minute run (initial errors mainly occur within the first 2 min)
(5 minute capture)
http://home.comcast.net/~jpiszcz/20091031/1.mon.out.p55chipset.2.txt
Issues/5-minute run (initial errors mainly occur within the first 2 min)
(again) (5 minute capture)
http://home.comcast.net/~jpiszcz/20091031/1.mon.out.p55chipset.2.one.more.time.txt
Errors past 5 minutes occur around 6-7 minutes and later, hence this last one
nut had been running for 5-7 minutes when I started it, it captured a
disconnect and reconnect toward the end FYI. (capture until error > 5 min)
http://home.comcast.net/~jpiszcz/20091031/1.mon.out.p55chipset.2.one.more.time.while.nut.is.running.txt
No issues on the PCI USB card: (5 minute capture)
http://home.comcast.net/~jpiszcz/20091031/1.mon.out.via.no.errors.txt
==
FILES:
wget http://home.comcast.net/~jpiszcz/20091031/1.mon.out.p55chipset.2.one.more.time.txt
wget http://home.comcast.net/~jpiszcz/20091031/1.mon.out.p55chipset.2.one.more.time.while.nut.is.running.txt
wget http://home.comcast.net/~jpiszcz/20091031/1.mon.out.p55chipset.2.txt
wget http://home.comcast.net/~jpiszcz/20091031/1.mon.out.via.no.errors.txt
Justin.
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