Author: kib Date: Mon Sep 21 09:41:51 2009 New Revision: 197389 URL: http://svn.freebsd.org/changeset/base/197389
Log: If CPU happens to be in usermode when a T_RESERVED trap occured, then trapsignal is called with ksi.ksi_signo = 0. For debugging kernels, that should end up in panic, for non-debugging kernels behaviour is undefined. Do panic regardeless of execution mode at the moment of trap. Reviewed by: jhb MFC after: 1 month Modified: head/sys/amd64/amd64/trap.c head/sys/i386/i386/trap.c Modified: head/sys/amd64/amd64/trap.c ============================================================================== --- head/sys/amd64/amd64/trap.c Mon Sep 21 09:09:55 2009 (r197388) +++ head/sys/amd64/amd64/trap.c Mon Sep 21 09:41:51 2009 (r197389) @@ -253,6 +253,11 @@ trap(struct trapframe *frame) } #endif + if (type == T_RESERVED) { + trap_fatal(frame, 0); + goto out; + } + #ifdef HWPMC_HOOKS /* * CPU PMCs interrupt using an NMI. If the PMC module is Modified: head/sys/i386/i386/trap.c ============================================================================== --- head/sys/i386/i386/trap.c Mon Sep 21 09:09:55 2009 (r197388) +++ head/sys/i386/i386/trap.c Mon Sep 21 09:41:51 2009 (r197389) @@ -225,6 +225,11 @@ trap(struct trapframe *frame) } #endif + if (type == T_RESERVED) { + trap_fatal(frame, 0); + goto out; + } + #ifdef HWPMC_HOOKS /* * CPU PMCs interrupt using an NMI so we check for that first. _______________________________________________ svn-src-all@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"