Stephan Feder <[EMAIL PROTECTED]> wrote: > Jon Wikne <[EMAIL PROTECTED]> wrote: [...] > > The problem in question causes a kernel Oops, a complete > > hang of the kernel USB scanner module, and is present also with > > _another_ application program, i.e. Vuescan. > > I do not see how a kernel oops could be caused by the code in scanner.c. > Could you give a pointer to the offending piece of code?
In terms of source code, I can not. If I could, I would probably have suggested a fix and posted a patch. However, I have already posted a ksymoops analysis which appears (to me, at least) to pin down the problem to a routine in scanner.c. Here it is once more: >>EIP; fa9404f8 <[scanner]read_scanner+e8/240> <===== Trace; c0139b26 <sys_read+96/110> Trace; c010a766 <do_IRQ+c6/f0> Trace; c0108c3b <system_call+33/38> Code; fa9404f8 <[scanner]read_scanner+e8/240> 00000000 <_EIP>: Code; fa9404f8 <[scanner]read_scanner+e8/240> <===== 0: 8b 11 mov (%ecx),%edx <===== Code; fa9404fa <[scanner]read_scanner+ea/240> 2: c1 e0 0f shl $0xf,%eax Code; fa9404fd <[scanner]read_scanner+ed/240> 5: c1 e2 08 shl $0x8,%edx Code; fa940500 <[scanner]read_scanner+f0/240> 8: 09 c2 or %eax,%edx Code; fa940502 <[scanner]read_scanner+f2/240> a: 89 d0 mov %edx,%eax Code; fa940504 <[scanner]read_scanner+f4/240> c: 0d 00 00 00 04 or $0x4000000,%eax Code; fa940509 <[scanner]read_scanner+f9/240> 11: 83 79 04 00 cmpl $0x0,0x4(%ecx) The full post of this is available in the linux-usb-devel mailing list archive. -- Jon ------------------------------------------------------- This sf.net email is sponsored by:ThinkGeek Welcome to geek heaven. http://thinkgeek.com/sf _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
