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author | 2021-05-09 14:20:58 -0400 | |
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committer | 2021-05-09 14:20:58 -0400 | |
commit | 5fd83771641d15c418f747bd343ba6738d3875f7 (patch) | |
tree | 5abf0f78f680d9837dbd93d4d4c3933bb7509599 /system_cmds/zlog.tproj/zlog.1 | |
download | apple_cmds-5fd83771641d15c418f747bd343ba6738d3875f7.tar.gz apple_cmds-5fd83771641d15c418f747bd343ba6738d3875f7.tar.zst apple_cmds-5fd83771641d15c418f747bd343ba6738d3875f7.zip |
Import macOS userland
adv_cmds-176
basic_cmds-55
bootstrap_cmds-116.100.1
developer_cmds-66
diskdev_cmds-667.40.1
doc_cmds-53.60.1
file_cmds-321.40.3
mail_cmds-35
misc_cmds-34
network_cmds-606.40.1
patch_cmds-17
remote_cmds-63
shell_cmds-216.60.1
system_cmds-880.60.2
text_cmds-106
Diffstat (limited to 'system_cmds/zlog.tproj/zlog.1')
-rw-r--r-- | system_cmds/zlog.tproj/zlog.1 | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/system_cmds/zlog.tproj/zlog.1 b/system_cmds/zlog.tproj/zlog.1 new file mode 100644 index 0000000..141caa9 --- /dev/null +++ b/system_cmds/zlog.tproj/zlog.1 @@ -0,0 +1,56 @@ +.\" Copyright (c) 2018, Apple Inc. All rights reserved. +.\" +.Dd February 21, 2018 +.Dt ZLOG 1 +.Os "Mac OS X" +.Sh NAME +.Nm zlog +.Nd show allocation backtraces for kernel zones +.Sh SYNOPSIS +.Nm +.Op Fl t +.Op Fl z Ar name Op Fl n Ar num | Fl l +.Op Fl h +.Sh DESCRIPTION +.Nm +displays allocation (and free, if used in corruption tracking mode with +the boot-arg "-zc") backtraces for zones that have zone logging enabled. +Zone logging can be turned on by using the boot-arg "zlog<N>=<name>", +where 'N' can range from 1 to 10, and 'name' is the name of the zone to +be tracked. +.Pp +.Nm +interprets the following options: +.Pp +.Bl -tag -width "disable -" +.\" -t +.It Fl t +(Default) list all the zones that have logging enabled +.\" -z +.It Fl z Ar name +show all allocation backtraces for zone +.Ar name +.\" -n +.It Fl n Ar num +Can be used in combination with the +.Fl z +option to show the top +.Ar num +backtraces with the most active references in the zone +.Ar name +.\" -l +.It Fl l +Can be used in combination with the +.Fl z +option to show the backtrace most likely contributing to a leak in the zone +.Ar name +(prints the backtrace with the most active references) +.\" -h +.It Fl h +show the help text +.El +.Sh DIAGNOSTICS +.Ex -std +.Sh SEE ALSO +.Xr zprint 1 , +.Xr ioclasscount 1 |