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@(#)reboot.8 8.1 (Berkeley) 6/9/93
.Dd December 12, 2010 .Dt RUMP.HALT 1 .Os .Sh NAME .Nm rump.halt .Nd halt a rump kernel .Sh SYNOPSIS .Nm .Op Fl dhn .Sh DESCRIPTION The .Nm utility exits a rump kernel. The file system cache, if present, is flushed. Since a rump kernel does not control its clients, they are not directly affected by .Nm . However, they will be unable to request further services from the halted rump kernel.
p The options are as follows: l -tag -width Ds t Fl d Create a core dump. The core file is saved according to standard userland program coredump rules, and can be later examined with a debugger. t Fl h By default the process hosting the rump kernel exits. Using this option shuts down rump kernel activity, but does not cause the hosting process to exit. t Fl n Do not flush the file system cache. This option should be used with extreme caution. It can be used if a virtual disk or a virtual processor is virtually on fire. .El .Sh SEE ALSO .Xr rump 3 .Sh HISTORY The .Nm command appeared in .Nx 6.0 . .Sh CAVEATS While using .Fl h makes it impossible to issue further system calls, it does not necessarily stop all activity in a rump kernel. It is recommended this option is used only for debugging purposes.