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SHM problem with exactly 16GB RAM
I've found that Apache does not start if my netbsd-7 amd64 domU has 16GB
of RAM. 15.9GB and 16.1GB are OK. It looks to be related to shared memory.
Errors are along the lines of:
Invalid argument: mod_fcgid: Can't create shared memory for size 1200712 bytes
[:emerg] [pid 1868] AH02818: MPM run failed, exiting
I also see the following even with a working system if the memory is large
balloon0: current reservation: 4168192 pages => target: 4168090 pages
balloon0: increase reservation incomplete: was 410, returned 409
balloon0: WARNING: balloon could not reach target 4168090 (current 4167680)
This reminds me of a problem many years ago with an i386 domU. If the RAM
was set to exactly 4GB it allocated 0GB to the VM which failed to start.
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