Messages in this thread | | | Date | Tue, 2 Dec 2008 02:41:02 +0100 (CET) | From | Jan Engelhardt <> | Subject | Re: sg_set_page not usable for .bss? |
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On Tuesday 2008-12-02 01:14, David Miller wrote: >> >> >> >> Well, sysrq_password is in the .bss section, where as digest_password >> >> is on the heap due to being kmalloc'ed. Maybe that makes a difference? >> >> Someone more versed with the virtual memory layer might know. >> > >> >You can't use these interfaces on kernel image addresses. >> > >> Great :-) So what is the best way to use the SHA1 crypto algo >> with in-kernel addresses? > >kmalloc and copy it there, or something like that, you just >can't use in-kernel addresses, ever. > Yes, kmalloc is already used. But then, what sort of address does kmalloc return, if not an address within kernelspace? (usually >=0xc0000000 on standard i386)
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