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04-18-2012 12:32 AM - edited 04-20-2012 12:27 AM
04-18-2012 12:32 AM - edited 04-20-2012 12:27 AM
how to access syscall parameter data in uarea in DLKM of hpux 11iv3(IA64)?
I replace open syscall with my function , in my function access original open syscall parameters( scall_argp()). when I printf the first parameter string, the kernel happens crash !!!! Help me !!!!
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09-13-2012 02:36 AM
09-13-2012 02:36 AM
Re: how to access syscall parameter data in uarea in DLKM of hpux 11iv3(IA64)?
looks like it tried to deref an address in a wrong space,
looks like you passed 32bit aapplication on stack address to printf.
you should copyin the buffer to a kernel buffer before printing it I suppose
But this is pure crystalball guess, because without seeing either the code or the crash, difficult to tell.