On Fri, Sep 09, 2005 at 10:01:00AM +0200, Andi Kleen wrote: > On Thursday 08 September 2005 18:38, Tom Rini wrote: > > This adds a call to notify_die() in the "no context" portion of > > do_page_fault() as someone on the chain might care and want to do a fixup. > > > > --- > > > > linux-2.6.13-trini/arch/x86_64/mm/fault.c | 4 ++++ > > 1 files changed, 4 insertions(+) > > > > diff -puN arch/x86_64/mm/fault.c~x86_64-no_context_hook > > arch/x86_64/mm/fault.c --- > > linux-2.6.13/arch/x86_64/mm/fault.c~x86_64-no_context_hook 2005-09-01 > > 12:00:43.000000000 -0700 +++ > > linux-2.6.13-trini/arch/x86_64/mm/fault.c 2005-09-01 12:00:43.000000000 > > -0700 @@ -514,6 +514,10 @@ no_context: > > if (is_errata93(regs, address)) > > return; > > > > + if (notify_die(DIE_PAGE_FAULT, "no context", regs, error_code, 14, > > + SIGSEGV) == NOTIFY_STOP) > > + return; > > + > > But how would the chain users distingush this from the DIE_PAGE_FAULT > reported at the beginning of the page fault handler? I don't see how > it can work. If anything you would need a DIE_NO_CONTEXT or somesuch, no?
"no context" is passed to the functions as well, and in KGDB we strcmp on that. -- Tom Rini http://gate.crashing.org/~trini/ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
