Re: [leaf-wisp] usb.c - unable to handle kernel NULL pointer

What is the version of wisp-dist that you're using?

Jiri Musil wrote:
> Hi,
> first of all i would like to thank Vladimir for his great work on Wisp.
> 
> I have problems with loading usb drivers to Wisp 2.4.20 kernel.
> I'have downloaded them (usbcore.o, usb-ohci.o) from 
> http://leaf.sourceforge.net/devel/jnilo/bering/latest/modules/.
> 
> The result of modprobe usbcore; modprobe usb-ohci in dmesg is following:
> 
> usb.c: registered new driver usbdevfs
> usb.c: registered new driver hub
> Unable to handle kernel NULL pointer dereference at virtual address 00000004
> printing eip:
> c011400d
> *pde = 00000000
> Oops: 0002
> CPU:    0
> EIP:    0010:[<c011400d>]    Not tainted
> EFLAGS: 00010046
> eax: d08e8408   ebx: 00000000   ecx: cece1fe8   edx: cece1fe0
> esi: 00000246   edi: cece0248   ebp: 080b102f   esp: cece1fc8
> ds: 0018   es: 0018   ss: 0018
> Process insmkhubd (pid: 2342, stackpage=cece1000)
> Stack: cece1fe0 cece0000 d08df9c9 00000f00 ced09f10 00000000 00000000
> cece0000 
> 00000078 c01073ad c01073b6 00000000 d08df970 00000000 
> Call Trace:    [<d08df9c9>] [<c01073ad>] [<c01073b6>]
> [<d08df970>]
> 
> Code: 89 4b 04 89 5a 08 89 41 04 89 08 56 9d 5b 5e c3 8d 76 00 56 
> <6>SiS router pirq escape (99)
> SiS router pirq escape (99)
> usb-ohci.c: USB OHCI at membase 0xd080d000, IRQ 10
> usb-ohci.c: usb-00:02.3, PCI device 1039:7001
> Unable to handle kernel paging request at virtual address fffffffc
> printing eip:
> c01130f0
> *pde = 00001063
> *pte = 00000000
> Oops: 0000
> CPU:    0
> EIP:    0010:[<c01130f0>]    Not tainted
> EFLAGS: 00010017
> eax: d08e8828   ebx: 00000000   ecx: 00000001   edx: 00000003
> esi: cf339c10   edi: 00000001   ebp: ced6be74   esp: ced6be5c
> ds: 0018   es: 0018   ss: 0018
> Process insmod (pid: 2345, stackpage=ced6b000)
> Stack: 00000286 00000003 d08e8828 d08e8540 cf339c10 c12ff000
> cf339c10 d08e35c4 
> d08e3128 00000000 d08e88e0 d08db9a5 cf339c10 00000000
> cf2d3800 c12ff000 
> ced6beb8 d08ed593 cf339c10 d080d000 00001000
> cffff000 c12ff000 40003031 
> Call Trace:    [<d08e8828>] [<d08e8540>]
> [<d08e35c4>] [<d08e3128>] [<d08e88e0>]
> [<d08db9a5>] [<d08ed593>] [<d08ed7ce>]
> [<d08ee388>] [<d08ee388>] [<d08ee480>]
> [<d08ee36c>] [<c019795c>] [<d08ee388>]
> [<d08ee480>] [<c01979c2>] [<d08ee480>]
> [<d08edbeb>] [<d08ee480>] [<c0116ae5>]
> [<d08ee4e4>] [<d08ea060>] [<c0108bf3>]
> Code: 8b 4b fc 8b 01 85 45 ec 74 4d 31 c0
> 9c 5e fa c7 01 00 00 00 
> 
> According to lsmod, usbcore seems to be really loaded, but
> modprobe usb-ohci ends with segfault. I've tried it on two different
> PC's. At least on my one the usb works fine.
> 
> Thanks for help,
>         Jiri Musil.
> 


-- 
Best Regards,
Vladimir Ivashchenko
ThunderWorx - www.thunderworx.com
Senior Systems Designer/Engineer



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