Hi, Posted last night regarding IRQ problems with 2.3.99Pre7. Posting summary of new problem where both usb-uhci and uhci both produce Kernel oops messages, hoping the right person will notice ! Also tried 2.3.99Pre8, no joy either. Thanks to all who have helped so far... summary... ------------------------------------ Once again thanks ! But still no go. Patched usb-uhci with the 2 patches, and still get the crash. Provisionally looks like the same error.... More ideas welcomed !!!! Again let me know what other debug you might need... 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 > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] -- Alanp ------------------------------------------------------- -- Alanp --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
