Module Name: src
Committed By: riastradh
Date: Fri Mar 18 23:35:07 UTC 2022
Modified Files:
src/sys/kern: kern_entropy.c
Log Message:
entropy(9): Request entropy after the softint is enabled.
Otherwise, there is a window during which interrupts are running, but
the softint is not, so if many interrupts queue (low-entropy) samples
early at boot, they might get dropped on the floor. This could
happen, for instance, with a PCI RNG like ubsec(4) or hifn(4) which
requests entropy and processes it in its own hard interrupt handler.
To generate a diff of this commit:
cvs rdiff -u -r1.37 -r1.38 src/sys/kern/kern_entropy.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/kern/kern_entropy.c
diff -u src/sys/kern/kern_entropy.c:1.37 src/sys/kern/kern_entropy.c:1.38
--- src/sys/kern/kern_entropy.c:1.37 Fri Mar 18 23:34:56 2022
+++ src/sys/kern/kern_entropy.c Fri Mar 18 23:35:07 2022
@@ -1,4 +1,4 @@
-/* $NetBSD: kern_entropy.c,v 1.37 2022/03/18 23:34:56 riastradh Exp $ */
+/* $NetBSD: kern_entropy.c,v 1.38 2022/03/18 23:35:07 riastradh Exp $ */
/*-
* Copyright (c) 2019 The NetBSD Foundation, Inc.
@@ -75,7 +75,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: kern_entropy.c,v 1.37 2022/03/18 23:34:56 riastradh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: kern_entropy.c,v 1.38 2022/03/18 23:35:07 riastradh Exp $");
#include <sys/param.h>
#include <sys/types.h>
@@ -2431,6 +2431,7 @@ rnd_init_softint(void)
{
entropy_init_late();
+ entropy_bootrequest();
}
int
