When I execute cpu_poweroff() which in turn calls this
plat_cpu_poweroff() function, it returns with ENOTSUP, so it seems the
sbdp_cpu_poweroff function does not exist.
What kind of machine are you running this on?
However, using the source browser, there seems to be a
sbdp_cpu_poweroff() function in uts/sun4u/serengeti/io/sbdp_cpu.c. If
I understand correctly, this is part of some sbdp module for
serengeti, which does not seem to be loaded and isn't in my /kernel
directory either.
It is in the platform-specific directory:
$ nm /platform/SUNW,Sun-Fire/kernel/misc/sparcv9/sbdp | grep
sbdp_cpu_poweroff
[142] | 8596| 532|FUNC |GLOB |0 |1
|sbdp_cpu_poweroff
The module that depends on it:
$ ldd /platform/sun4u/kernel/misc/sparcv9/sbd
misc/sbdp => (file not found)
sbd module is loaded from ssm_open()
http://src.opensolaris.org/source/xref/onnv/onnv-gate/usr/src/uts/sun4u/serengeti/io/ssm.c#732
734 if (modload("misc", "sbd") == -1) {
which is called whenever ssm device is opened by cfgadm.
what does the acronym sbdp stand for?
Don't know, but perhaps what the module name says: "System Board DR v%I%".
Is there a particular problem you're trying to solve. DR is one of the
most complicated parts of the system and probably one of the ugliest.
-Artem.
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