Messages in this thread | | | Date | Sat, 29 Aug 2009 22:49:47 -0400 | From | Masami Hiramatsu <> | Subject | Re: [PATCH -tip tracing/kprobes 3/6] kprobes/x86: Fix to add __kprobes to in-kernel fault handing functions |
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Frederic Weisbecker wrote: > On Thu, Aug 27, 2009 at 01:23:11PM -0400, Masami Hiramatsu wrote: >> Add __kprobes to the functions which handles in-kernel fixable page faults. >> Since kprobes can cause those in-kernel page faults by accessing kprobe data >> structures, probing those fault functions will cause fault-int3-loop >> (do_page_fault has already been marked as __kprobes). > > > BTW, is it possible to assert a struct kprobe (and its pointer members) > haven't been allocated through vmalloc() ? >
How about calling vmalloc_sync() always before registering kprobes? :-)
Thank you,
-- Masami Hiramatsu
Software Engineer Hitachi Computer Products (America), Inc. Software Solutions Division
e-mail: mhiramat@redhat.com
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