diff options
| author | Mark Kettenis <kettenis@cvs.openbsd.org> | 2015-09-26 17:55:01 +0000 |
|---|---|---|
| committer | Mark Kettenis <kettenis@cvs.openbsd.org> | 2015-09-26 17:55:01 +0000 |
| commit | 8314b4626b5c4c8db28473f392d0cb5e0e10a14a (patch) | |
| tree | b7a8b702c0d96ed6dc3c70980f50df0a060a69bc /sys/uvm/uvm_km.c | |
| parent | 872b71c53a517f2ad357fda6793473a83ea2cfd6 (diff) | |
Protect the list of free map entries with a mutex. This should fix the
crashes seen by sthen@ on i386.
ok visa@, guenther@, tedu@
Diffstat (limited to 'sys/uvm/uvm_km.c')
| -rw-r--r-- | sys/uvm/uvm_km.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/sys/uvm/uvm_km.c b/sys/uvm/uvm_km.c index 96ba63600bc..f76bd87c493 100644 --- a/sys/uvm/uvm_km.c +++ b/sys/uvm/uvm_km.c @@ -1,4 +1,4 @@ -/* $OpenBSD: uvm_km.c,v 1.127 2015/09/17 18:04:49 kettenis Exp $ */ +/* $OpenBSD: uvm_km.c,v 1.128 2015/09/26 17:55:00 kettenis Exp $ */ /* $NetBSD: uvm_km.c,v 1.42 2001/01/14 02:10:01 thorpej Exp $ */ /* @@ -703,6 +703,8 @@ uvm_km_thread(void *arg) int flags; struct uvm_km_free_page *fp = NULL; + KERNEL_UNLOCK(); + for (;;) { mtx_enter(&uvm_km_pages.mtx); if (uvm_km_pages.free >= uvm_km_pages.lowat && |