Re: mmaping on plan9? (was Re: [9fans] venti /plan9port mmapped

[wb . kloke]

On Monday, 9 February 2026, at 4:24 PM, ron minnich wrote:
> as for mmap, there's already a defacto mmap happening for executables. They 
> are not read into memory. In fact, the first instruction you run in a binary 
> results in a page fault. 
> 
Reading this, I got the idea that to apply this on venti,one could put the text 
segment of the ventiserver into the unused part of the venti partition, and 
load the data log as the data segment. Probably, this would not work with 
production venti arena partitions, but for small (less than 2GB) ones. 
What would happen to the data segment? It won't be written back to the program 
image, or else?
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