Date: Tue, 28 Sep 2004 16:55:26 +0400 From: Andrew Belashov <bel@orel.ru> To: freebsd-sparc64@freebsd.org Subject: libkse: One more bug in kernel? Message-ID: <41595F3E.9080909@orel.ru>
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This is a multi-part message in MIME format. --------------090709000205070904000502 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Hi! I have found a bug in kernel. Here a patch with short explanation. See also my development set of patches for libkse: <http://www.orel.ru/~bel/patches/libkse.patch>; -- Best regards, Andrew Belashov. --------------090709000205070904000502 Content-Type: text/plain; name="machdep.patch" Content-Transfer-Encoding: 7bit Content-Disposition: inline; filename="machdep.patch" --- sys/sparc64/sparc64/machdep.c.orig Thu Aug 5 09:42:40 2004 +++ sys/sparc64/sparc64/machdep.c Tue Sep 28 15:11:08 2004 @@ -623,6 +623,11 @@ set_mcontext(struct thread *td, const mc tf = td->td_frame; pcb = td->td_pcb; wstate = tf->tf_wstate; + /* XXXKSE Make sure the pre-trap windows are spilled. + * This is needed for kse_switchin(2) for correct switching between + * threads stacks. + */ + flushw(); bcopy(mc, tf, sizeof(*tf)); tf->tf_wstate = wstate; if ((mc->mc_fprs & FPRS_FEF) != 0) { --------------090709000205070904000502--
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