Re: USB 2.0 (EHCI) keeps crapping out (3.2.29)
From: Logan Rathbone
Date: Mon Dec 24 2012 - 23:27:05 EST
On 12/24/2012 11:10 PM, Rob Landley wrote:
On 12/24/2012 09:02:11 PM, Logan Rathbone wrote:
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Running vanilla 3.2.29 (Slackware 14.0). I also had this issue on
2.6.37.6 and *possibly* 2.6.33.x, but I don't recall.
Every now and again (could be every few days, could take a couple of
weeks...
depends.) USB 2.0 stops working. My scanner as well as certain
mass-storage
devices that are USB-2.0 compatible fail to function all of a sudden.
With the said mass storage devices, I get lots of errors like this in
my logs:
hub 1-0:1.0: unable to enumerate USB device on port 3
What is the _first_ error that shows up in dmesg when the failure occurs?
I *think* this is the first error that appears:
usb 1-3: USB disconnect, device number 3
sd 5:0:0:0: Device offlined - not ready after error recovery
That second message is sometimes:
usblp0: removed
But honestly I can't recall if my USB 2.0 printer stopped working at
that point in time. The effect of the crap-out is mainly noticeable on
my mass storage devices since I can't mount them (the device nodes do
not get created by udev until I rmmod & modprobe ehci_hcd again or reboot).
I also see stuff like this scattered throughout (hard to tell if it's
one of the first or last errors that pops up though... I think it's the
last. It usually pops up after a whole whack of the "unable to
enumerate" errors:
ehci_hcd 0000:00:10.3: force halt; handshake f8044014 0000c000 00000000
-> -110
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