Re: [lockup] Re: objrmap-core-1 (rmap removal for file mappings toavoid 4:4 in <=16G machines)

[Andrew Morton]

Ingo Molnar <mingo@xxxxxxx> wrote:
>
> or run the attached test-mmap2.c code, which simulates a very small DB
>  app using only 1800 vmas per process: it only maps 8 MB of shm and
>  spawns 32 processes. This has an even more lethal effect than the
>  previous code.

Do these tests actually make any forward progress at all, or is it some bug
which has sent the kernel into a loop?

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