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SubjectRe: 2.2.x kernels not filling in siginfo_t.si_addr on SEGV?
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Date
Greetings, and thank you so much for your helpful reply!  Was this on
an i386? I'm specifically looking for a way to do his on arm, alpha,
and sparc, and I don't believe they have the cr2 member of struct
sigcontext. Any info you might have, including where you found this
solution, would be appreciated!

Take care,

David Watson <dwatson@cs.ucr.edu> writes:

> > Greetings!  Shouldn't a SIGSEGV fill in th si_addr member of the
> > siginfo_t structure passed to a signal handler?  Here is what I see
>
> Our group ran into this problem last summer while we were developing the
> Oasis+ DSM system. We worked around it by utilizing the following code
> fragment:
>
> void fault_handler(int sig, siginfo_t *sip, ucontext_t *ucp)
> {
> void *addr;
>
> addr = (void *) ucp->uc_mcontext.cr2;
>
> ...
> }
>
> Hope that helps.
>
> Regards,
> David
>
> --
> The theory of groups is a branch of Mathematics in which one does
> something to something and then compares the result with the result
> obtained from doing the same thing to something else, or something else to
> the same thing.
> J. R. Newman
>
>
>

--
Camm Maguire camm@enhanced.com
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"The earth is but one country, and mankind its citizens." -- Baha'u'llah
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