Red Hat Bugzilla – Bug 89146
usb support not loaded; missing in /proc/devices
Last modified: 2007-04-18 12:53:08 EDT
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Description of problem:
This might be a kernel problem:
After a reboot (an a kernel upgrade), I suddenly lost support for usb.
The issue seems to be that usb is not listed in /proc/devices,
even though the io-ports can be seen in /proc/ioports.
This happens in kernel version .4.18-27.8.0smp, but I am a little confused by
the fact that I cannot regress to the previous kernel!
Version-Release number of selected component (if applicable):
Steps to Reproduce:
Actual Results: Looking at the script, if usb is missing in devices usb support
will not be loaded... I am not sure what the kernel issue is that shows usb
support in /proc/devices.
What is the output of 'lspci'?
00:00.0 Host bridge: VIA Technologies, Inc. VT82C693A/694x [Apollo PRO133x] (rev c4)
00:01.0 PCI bridge: VIA Technologies, Inc. VT82C598/694x [Apollo MVP3/Pro133x AGP]
00:07.0 ISA bridge: VIA Technologies, Inc. VT82C686 [Apollo Super South] (rev 22)
00:07.1 IDE interface: VIA Technologies, Inc. VT82C586B PIPC Bus Master IDE (rev 10)
00:07.2 USB Controller: VIA Technologies, Inc. USB (rev 10)
00:07.3 USB Controller: VIA Technologies, Inc. USB (rev 10)
00:07.4 Host bridge: VIA Technologies, Inc. VT82C686 [Apollo Super ACPI] (rev 30)
00:07.5 Multimedia audio controller: VIA Technologies, Inc. VT82C686 AC97 Audio
Controller (rev 20)
00:0c.0 Unknown mass storage controller: Promise Technology, Inc. 20265 (rev
02)00:0f.0 Ethernet controller: VIA Technologies, Inc. VT86C100A [Rhine] (rev 06)
00:10.0 Ethernet controller: 3Com Corporation 3c905B 100BaseTX [Cyclone]
01:00.0 VGA compatible controller: nVidia Corporation NV5 [Riva TnT2] (rev 15)
and dmesg after a boot with it failing ti see the USB ?
Alan's right, we need a decent dmesg. Please attach it instead of dropping
into the comments box.
Another thing, please upgrade to 2.4.20-18.8.
end of life