Author: kevans
Date: Sat Feb 16 23:57:38 2019
New Revision: 344218
URL: https://svnweb.freebsd.org/changeset/base/344218
Log:
mdmfs(8): use -o reserve with malloc-backed md(4)
Mentioned in mdconfig(8), malloc-backed md(4) can be unstable unless
required memory is allocated up front with -o reserve. Furthermore, panics
have been observed with md used in fstab on 12.0-RELEASE. Choose the stable
route and pass -o reserve.
Submitted by: Paul Vixie
MFC after: 1 week
Modified:
head/sbin/mdmfs/mdmfs.c
Modified: head/sbin/mdmfs/mdmfs.c
==============================================================================
--- head/sbin/mdmfs/mdmfs.c Sat Feb 16 19:49:12 2019 (r344217)
+++ head/sbin/mdmfs/mdmfs.c Sat Feb 16 23:57:38 2019 (r344218)
@@ -196,6 +196,7 @@ main(int argc, char **argv)
usage();
mdtype = MD_MALLOC;
have_mdtype = true;
+ argappend(&mdconfig_arg, "-o reserve");
break;
case 'm':
argappend(&newfs_arg, "-m %s", optarg);
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