Output of messages before system crash.....
Looking better .. (except for crash!)
May 14 21:21:35 ultra kernel: usb.c: registered new driver usbdevfs
May 14 21:21:35 ultra kernel: usb.c: registered new driver hub
May 14 21:21:57 ultra kernel: usb-uhci.c: $Revision: 1.231 $ time 21:15:10 May 1
6 2000
May 14 21:21:57 ultra kernel: usb-uhci.c: High bandwidth mode enabled
May 14 21:21:57 ultra kernel: PCI: Enabling device 00:01.2 (0000 -> 0001)
May 14 21:21:57 ultra kernel: usb-uhci.c: Intel USB controller: setting latency
timer to 0
May 14 21:21:57 ultra kernel: usb-uhci.c: USB UHCI at I/O 0x1000, IRQ 9
May 14 21:21:57 ultra kernel: usb-uhci.c: Detected 2 ports
May 14 21:21:57 ultra kernel: usb.c: new USB bus registered, assigned bus number
1
May 14 21:21:57 ultra kernel: usb.c: USB new device connect, assigned device num
ber 1
May 14 21:21:57 ultra kernel: Product: USB UHCI Root Hub
May 14 21:21:57 ultra kernel: SerialNumber: 1000
May 14 21:21:57 ultra kernel: hub.c: USB hub found
May 14 21:21:57 ultra kernel: hub.c: 2 ports detected
May 14 21:26:00 ultra syslogd 1.3-3: restart.
On Sun, 14 May 2000, Dunlap, Randy wrote:
> Alan,
>
> I don't suspect the PCI subsystem as the source of the
> new problems that you describe.
>
> In 2.3.99-pre7, slab poisoning was turned on to detect
> memory allocation and usage problems, and it detected
> several of them in both of the UHCI host controller
> drivers and in the input module (to be patched very soon).
>
> uhci.c is patched in 2.3.99-pre8 and usb-uhci.c should
> be patched in 2.3.99-pre9-2. The patches for it were
> sent to Linus earlier today.
>
> The patches for usb-uhci were posted on the linux-usb
> mailing list Sat. 2000-may-13 if you need them.
>
> ~Randy
>
> > -----Original Message-----
> > From: Alan Pearson [mailto:[EMAIL PROTECTED]]
> > Sent: Sunday, May 14, 2000 5:36 PM
> > To: Martin Mares
> > Cc: [EMAIL PROTECTED]
> > Subject: Re: [linux-usb] 2.3.99Pre7 IRQ problems Again !
> >
> >
> > Martin,
> >
> > Thanks for the help. System now allocates IRQ 9 for usb.
> > But now, when I do insmod usbcore, all is ok.
> > Then with insmod usb_uhci, system crashes (and yes, I mean
> > system!) with following message :-
> >
> > Enabling device 00.01.2 (000 -> 0001)
> > usb_uhci.c detected 2 ports
> >
> > Unable to handle kernel NULL pointer dereference at
> > virtaddress 00000000
> >
> > Then a reg dump and what have you.
> >
> > I have also tried using uhci rather than usb_uhci, and this
> > resulted in a
> > system freeze 1st time, then system crash on second attempt.
> >
> > Any more ideas ?
> > What would you like me to do to get further debug ?
> >
> > I enclose new dmesg & lspci.
> >
> > Thanks in advance,
> > Alan
>
> Alanp
>
>
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