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In article <3BF04289.8FC8B7B7@zip.com.au>, Andrew Morton <akpm@zip.com.au> wrote: > >It's tar. It cheats. It somehow detects that the >output is /dev/null, and so it doesn't read the input files. Probably the kernel. If you do a mmap()+write(), the write() to /dev/null won't even read the mmap contents, which in turn will cause the pages to never be brought in. Anything which uses mmap+write will show this. Linus - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||||
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