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| author | jhb <jhb@FreeBSD.org> | 2012-08-22 20:02:42 +0000 |
|---|---|---|
| committer | jhb <jhb@FreeBSD.org> | 2012-08-22 20:02:42 +0000 |
| commit | 9e9c95ef1d9199a55e30c8f9f85adc3e3f2d19eb (patch) | |
| tree | 5d5d83bfa22d5e1a30a8d7a4ce5eee1891360605 | |
| parent | e62296e213b1516802511208b33400ade1a77091 (diff) | |
| download | FreeBSD-src-9e9c95ef1d9199a55e30c8f9f85adc3e3f2d19eb.zip FreeBSD-src-9e9c95ef1d9199a55e30c8f9f85adc3e3f2d19eb.tar.gz | |
Assert that system calls do not leak a pinned thread (via sched_pin()) to
userland.
| -rw-r--r-- | sys/kern/subr_syscall.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/sys/kern/subr_syscall.c b/sys/kern/subr_syscall.c index 5aee684..fdb1dd5 100644 --- a/sys/kern/subr_syscall.c +++ b/sys/kern/subr_syscall.c @@ -188,6 +188,9 @@ syscallret(struct thread *td, int error, struct syscall_args *sa __unused) KASSERT((td->td_pflags & TDP_NOSLEEPING) == 0, ("System call %s returning with sleep disabled", syscallname(p, sa->code))); + KASSERT(td->td_pinned == 0, + ("System call %s returning with pinned thread", + syscallname(p, sa->code))); /* * Handle reschedule and other end-of-syscall issues |
