diff options
| author |   anton <anton@openbsd.org> | 2018-12-26 16:14:59 +0000 |
|---|---|---|
| committer | anton <anton@openbsd.org> | 2018-12-26 16:14:59 +0000 |
| commit | d783a1bd030a1d81b4eef949423a1130c2b67009 (patch) | |
| tree | 962a1e8dd8fc6f06b9ece0548893cdd9b83bce1c /lib/libc/sys | |
| parent | introduce a table_match() function to check for a key in a table (diff) | |
| download | wireguard-openbsd-d783a1bd030a1d81b4eef949423a1130c2b67009.tar.xz wireguard-openbsd-d783a1bd030a1d81b4eef949423a1130c2b67009.zip | |
document kern.pool_debug; ok tedu@
Diffstat (limited to 'lib/libc/sys')
| -rw-r--r-- | lib/libc/sys/sysctl.2 | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/lib/libc/sys/sysctl.2 b/lib/libc/sys/sysctl.2 index 23cbdbed41f..8259ccd057a 100644 --- a/lib/libc/sys/sysctl.2 +++ b/lib/libc/sys/sysctl.2 @@ -1,4 +1,4 @@ -.\" $OpenBSD: sysctl.2,v 1.17 2018/11/21 09:22:58 jmc Exp $ +.\" $OpenBSD: sysctl.2,v 1.18 2018/12/26 16:14:59 anton Exp $ .\" .\" Copyright (c) 1993 .\" The Regents of the University of California. All rights reserved. @@ -27,7 +27,7 @@ .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF .\" SUCH DAMAGE. .\" -.Dd $Mdocdate: November 21 2018 $ +.Dd $Mdocdate: December 26 2018 $ .Dt SYSCTL 2 .Os .Sh NAME @@ -463,6 +463,7 @@ information. .It Dv KERN_OSREV Ta "integer" Ta "no" .It Dv KERN_OSTYPE Ta "string" Ta "no" .It Dv KERN_OSVERSION Ta "string" Ta "no" +.It Dv KERN_POOL_DEBUG Ta "integer" Ta "yes" .It Dv KERN_POSIX1 Ta "integer" Ta "no" .It Dv KERN_PROC Ta "struct kinfo_proc" Ta "no" .It Dv KERN_PROC_ARGS Ta "node" Ta "not applicable" @@ -721,6 +722,23 @@ The system revision number. The system type string. .It Dv KERN_OSVERSION Pq Va kern.osversion The kernel build version. +.It Dv KERN_POOL_DEBUG Pq Va kern.pool_debug +Modify the memory pool debug level. +Valid values are: +.Pp +.Bl -tag -width 3n -offset indent -compact +.It 0 +Disable pool debugging. +.It 1 +Enable use after free detection. +.It 2 +In addition to 1, when calling either +.Xr malloc 9 +or +.Xr pool_get 9 +with flags indicating that sleeping is allowed then always yield. +Useful to detect potential races. +.El .It Dv KERN_POSIX1 Pq Va kern.posix1version The version of ISO/IEC 9945 (POSIX 1003.1) with which the system attempts to comply. |