rmmod uhci-hcd hangs eternally (linux-2.6.5-rc2-bk8)

rmmod uhci-hcd hangs eternally (linux-2.6.5-rc2-bk8)

[Ralf Hildebrandt]

Hi!

When using linux-2.6.5-rc2-bk8, "rmmod uhci-hcd" hangs forever. Even
when trying a reboot, the machine won't reboot.

This happens with linux-2.6.5-rc2-bk8 on this hardware:

# lspci
0000:00:00.0 Host bridge: Intel Corp. 440BX/ZX/DX - 82443BX/ZX/DX Host bridge (rev 03)
0000:00:01.0 PCI bridge: Intel Corp. 440BX/ZX/DX - 82443BX/ZX/DX AGP bridge (rev 03)
0000:00:04.0 ISA bridge: Intel Corp. 82371AB/EB/MB PIIX4 ISA (rev 02)
0000:00:04.1 IDE interface: Intel Corp. 82371AB/EB/MB PIIX4 IDE (rev 01)
0000:00:04.2 USB Controller: Intel Corp. 82371AB/EB/MB PIIX4 USB (rev 01)

from dmesg:
drivers/usb/core/usb.c: registered new driver usbfs
drivers/usb/core/usb.c: registered new driver hub
USB Universal Host Controller Interface driver v2.2
uhci_hcd 0000:00:04.2: UHCI Host Controller
uhci_hcd 0000:00:04.2: irq 5, io base 0000d400
uhci_hcd 0000:00:04.2: new USB bus registered, assigned bus number 1
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 2 ports detected
usb 1-1: new full speed USB device using address 2

and with this hardware as well (also kernel 2.6.5-rc2-bk8):

# lspci
0000:00:00.0 Host bridge: VIA Technologies, Inc. VT82C598 [Apollo MVP3] (rev 04)
0000:00:01.0 PCI bridge: VIA Technologies, Inc. VT82C598/694x [Apollo MVP3/Pro133x AGP]
0000:00:07.0 ISA bridge: VIA Technologies, Inc. VT82C596 ISA [Mobile South] (rev 23)
0000:00:07.1 IDE interface: VIA Technologies, Inc. VT82C586A/B/VT82C686/A/B/VT823x/A/C/VT8235 PIPC Bus Master IDE (rev 10)
0000:00:07.2 USB Controller: VIA Technologies, Inc. VT6202 [USB 2.0 controller] (rev 11)

from dmesg:
USB Universal Host Controller Interface driver v2.2
uhci_hcd 0000:00:07.2: VIA Technologies, Inc. USB
uhci_hcd 0000:00:07.2: irq 9, io base 0000d400
uhci_hcd 0000:00:07.2: new USB bus registered, assigned bus number 1
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 2 ports detected


-- 
Ralf Hildebrandt (Im Auftrag des Referat V a)   Ralf.Hildebrandt@charite.de
Charite - Universitätsmedizin Berlin            Tel.  +49 (0)30-450 570-155
Gemeinsame Einrichtung von FU- und HU-Berlin    Fax.  +49 (0)30-450 570-916
IT-Zentrum Standort Campus Mitte                          AIM.  ralfpostfix

Re: rmmod uhci-hcd hangs eternally (linux-2.6.5-rc2-bk8)

[Denis Vlasenko]

On Wednesday 31 March 2004 11:25, Ralf Hildebrandt wrote:
> Hi!
>
> When using linux-2.6.5-rc2-bk8, "rmmod uhci-hcd" hangs forever. Even

Produce a stacktrace of it: SysRq-T, look into syslog,
cut and mail relevant part.
--
vda

Re: rmmod uhci-hcd hangs eternally (linux-2.6.5-rc2-bk8)

[Bongani Hlope]

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On Wed, 31 Mar 2004 11:25:42 +0200
Ralf Hildebrandt <Ralf.Hildebrandt@charite.de> wrote:

> Hi!
> 
> When using linux-2.6.5-rc2-bk8, "rmmod uhci-hcd" hangs forever. Even
> when trying a reboot, the machine won't reboot.
> 
> This happens with linux-2.6.5-rc2-bk8 on this hardware:
> 

The same happens on 2.6.5-rc2-mm4, when I rmmod bttv it hangs, id did a cat /proc/<pid>/wchan and found that it was on 12c_release (exiting WindowMaker caused a hard-lock on my PC)

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