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From: Wanlong Gao <gaowanlong@cn.fujitsu.com>
To: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Cc: ltp-list@lists.sourceforge.net, Kang Kai <Kai.Kang@windriver.com>
Subject: Re: [LTP] Posix test case mmap/31-1 fails on Linux/eglibc
Date: Wed, 04 Jan 2012 10:05:58 +0800	[thread overview]
Message-ID: <4F03B406.8050808@cn.fujitsu.com> (raw)
In-Reply-To: <4F03AD5E.4000003@jp.fujitsu.com>

On 01/04/2012 09:37 AM, Yasuaki Ishimatsu wrote:

> 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


But it seems that the patch was not acceptable.

Thanks
-Wanlong Gao

> 
> Regards,
> Yasuaki Ishimatsu
> 
>>
>> Regards,
>> Kai



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  reply	other threads:[~2012-01-04  2:07 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-12-28 10:55 [LTP] Posix test case mmap/31-1 fails on Linux/eglibc Kang Kai
2011-12-28 18:16 ` Cyril Hrubis
2012-01-04  1:37 ` Yasuaki Ishimatsu
2012-01-04  2:05   ` Wanlong Gao [this message]
2012-01-04  2:50     ` Yasuaki Ishimatsu
2012-01-04  2:57       ` Wanlong Gao
2012-01-04  3:32         ` Kang Kai

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