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RUMP.HALT(1) BSD General Commands Manual RUMP.HALT(1)
rump.halt -- halt a rump kernel
The rump.halt 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
rump.halt. However, they will be unable to request further services from the halted rump
The options are as follows:
-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.
-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.
-n Do not flush the file system cache. This option should be used with extreme cau-
tion. It can be used if a virtual disk or a virtual processor is virtually on fire.
The rump.halt command appeared in NetBSD 6.0.
While using -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 debug-
BSD December 12, 2010 BSD
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