Module Name: src
Committed By: palle
Date: Sun Feb 23 20:48:43 UTC 2025
Modified Files:
src/sys/arch/sparc64/dev: vdsk.c
Log Message:
sun4v: Ensure that the ldc map table entries are properly cleared. It has been
observed that the inner while loop in vdsk_submit_cmd() may encounter stale
entries resulting in an endless loop
To generate a diff of this commit:
cvs rdiff -u -r1.18 -r1.19 src/sys/arch/sparc64/dev/vdsk.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/sparc64/dev/vdsk.c
diff -u src/sys/arch/sparc64/dev/vdsk.c:1.18 src/sys/arch/sparc64/dev/vdsk.c:1.19
--- src/sys/arch/sparc64/dev/vdsk.c:1.18 Thu Jun 20 18:41:45 2024
+++ src/sys/arch/sparc64/dev/vdsk.c Sun Feb 23 20:48:43 2025
@@ -1,4 +1,4 @@
-/* $NetBSD: vdsk.c,v 1.18 2024/06/20 18:41:45 palle Exp $ */
+/* $NetBSD: vdsk.c,v 1.19 2025/02/23 20:48:43 palle Exp $ */
/* $OpenBSD: vdsk.c,v 1.46 2015/01/25 21:42:13 kettenis Exp $ */
/*
* Copyright (c) 2009, 2011 Mark Kettenis
@@ -717,6 +717,8 @@ vdsk_rx_vio_rdx(struct vdsk_softc *sc, s
sc->sc_tx_cnt = 0;
sc->sc_lm->lm_next = 1;
sc->sc_lm->lm_count = 1;
+ for (int i = sc->sc_lm->lm_next; i < sc->sc_lm->lm_nentries; i++)
+ sc->sc_lm->lm_slot[i].entry = 0;
while (sc->sc_tx_prod != prod)
vdsk_submit_cmd(sc, sc->sc_vsd[sc->sc_tx_prod].vsd_xs);
break;
