From 2694c869ff9ff60fd8e3d4d7936b7dc61763c18a Mon Sep 17 00:00:00 2001
From: Andrew Gallatin <gallatin@FreeBSD.org>
Date: Thu, 5 Aug 2021 13:05:00 -0400
Subject: [PATCH] ktls: fix a panic with INVARIANTS

98215005b747fef67f44794ca64abd473b98bade introduced a new
thread that uses tsleep(..0) to sleep forever.  This hit
an assert due to sleeping with a 0 timeout.

So spell "forever" using SBT_MAX instead, which does not
trigger the assert.

Pointy hat to: gallatin
Pointed out by: emaste
Sponsored by: Netflix
---
 sys/kern/uipc_ktls.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sys/kern/uipc_ktls.c b/sys/kern/uipc_ktls.c
index 17b87195fc50e8..47815c266667c3 100644
--- a/sys/kern/uipc_ktls.c
+++ b/sys/kern/uipc_ktls.c
@@ -2240,7 +2240,7 @@ ktls_alloc_thread(void *ctx)
 	nbufs = 0;
 	for (;;) {
 		atomic_store_int(&sc->running, 0);
-		tsleep(sc, PZERO, "waiting for work", 0);
+		tsleep_sbt(sc, PZERO, "waiting for work", SBT_MAX, SBT_1S, 0);
 		atomic_store_int(&sc->running, 1);
 		sc->wakeups++;
 		if (nbufs != ktls_max_alloc) {