Re: [LTP] Posix test case mmap/31-1 fails on Linux/eglibc

[Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>]

Hi Kai,

2011/12/28 19:55, Kang Kai wrote:
> Hi all,
>
> I run mmap/31-1 failed with ENOMEM on linux, with error message:
> off: fffffffffffff000, len: fffffffffffff000
> Test FAIL: expect EOVERFLOW but get other error: Cannot allocate memory
>
> But compare to mmap/24-2, it mmap() the same length but pass. Its output:
> available memory: 18446744073709551615
> addr: 7f78c54fa000, len: ffffffffffffffff
> addr: 7f78c54fa000, len: fffffffffffff000
> Test Pass: mmap/24-2.c Get ENOMEM: Cannot allocate memory
>
> So I suppose that mmap/31-1 may need update, but I don't know how to
> make mmap() overflow as expect.
> Any suggestion is appreciated.

I don't think mmap/31-1 need update since it is Linux Kernel's problem,
not the test's problem. The problem is being discussed on LKML.

https://lkml.org/lkml/2011/12/22/85

Regards,
Yasuaki Ishimatsu

>
> Regards,
> Kai
>
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