Date: Sat, 16 Feb 2019 23:57:38 +0000 (UTC) From: Kyle Evans <kevans@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r344218 - head/sbin/mdmfs Message-ID: <201902162357.x1GNvckC014298@repo.freebsd.org>
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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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