Date: Wed, 6 Jun 2012 01:01:12 +0000 (UTC) From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-9@freebsd.org Subject: svn commit: r236648 - stable/9/sys/kern Message-ID: <201206060101.q5611Ceb058818@svn.freebsd.org>
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Author: kib Date: Wed Jun 6 01:01:12 2012 New Revision: 236648 URL: http://svn.freebsd.org/changeset/base/236648 Log: MFC r236309: Assert that TDP_NOFAULTING and TDP_NOSPEEPING thread flags do not leak when thread returns from a syscall to usermode. Modified: stable/9/sys/kern/subr_syscall.c Directory Properties: stable/9/sys/ (props changed) Modified: stable/9/sys/kern/subr_syscall.c ============================================================================== --- stable/9/sys/kern/subr_syscall.c Wed Jun 6 00:20:13 2012 (r236647) +++ stable/9/sys/kern/subr_syscall.c Wed Jun 6 01:01:12 2012 (r236648) @@ -182,6 +182,12 @@ syscallret(struct thread *td, int error, KASSERT(td->td_locks == 0, ("System call %s returning with %d locks held", syscallname(p, sa->code), td->td_locks)); + KASSERT((td->td_pflags & TDP_NOFAULTING) == 0, + ("System call %s returning with pagefaults disabled", + syscallname(p, sa->code))); + KASSERT((td->td_pflags & TDP_NOSLEEPING) == 0, + ("System call %s returning with sleep disabled", + syscallname(p, sa->code))); /* * Handle reschedule and other end-of-syscall issues
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