From: Kang K. <Kai...@wi...> - 2011-12-29 01:25:02
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On 2011年12月29日 02:16, Cyril Hrubis wrote: > Hi! Hi Cyril, >> 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 > At least the mmap/31-1, mmap/28-1, mmap/27-1, mmap/24-2, mmap/11-4 and > mmap/11-5 are known to fail sometimes and most likely are coded > incorrecly. Yes, they are all failed in my test. > >> 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 would start with careful reading of the mmap() manpages/docs, as most > likely some of the assumptions that the testcase makes is incorrect. > Thanks a lot. Regards, Kai |