On Wed, Sep 22, 2010 at 02:15:14PM -0700, David Miller wrote: > Alternatively, #2 could be implemented using a special ptrace getregs > call created specifically to fetch the windowed registers. And > the regset implementation of that could be used for dumping them > into core files as well, and this specifically I've been meaning to > do at some point. > > Again, let me think about this some more. OK... sparc32 question: just what the !@#!@# happens if sun4c_rett_stackchk find (%fp & 7) != 0? We go to ret_trap_user_stack_is_bolixed, which tries to page in the underlying page. OK, suppose it's already there and readable; we return without doing anything - and go to signal_p. Which finds itself with nothing to do, and %fp is *still* buggered. Spin ad infinitum? srmmu_rett_stackchk will do the same, BTW... -- To unsubscribe from this list: send the line "unsubscribe sparclinux" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
