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Re: [PATCH 3/3] tests/tcg/s390x: Test BRASL and BRCL with large negative


From: David Hildenbrand
Subject: Re: [PATCH 3/3] tests/tcg/s390x: Test BRASL and BRCL with large negative offsets
Date: Mon, 14 Mar 2022 11:17:59 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.6.2

On 14.03.22 09:30, Christian Borntraeger wrote:
> 
> 
> Am 11.03.22 um 21:32 schrieb Richard Henderson:
>> On 3/11/22 10:49, Ilya Leoshkevich wrote:
>>> +    size_t length = 0x100000006;
>>> +    unsigned char *buf;
>>> +    int i;
>>> +
>>> +    buf = mmap(NULL, length, PROT_READ | PROT_WRITE | PROT_EXEC,
>>> +               MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
>>> +    assert(buf != MAP_FAILED);
>>
>> I'm thinking exit success here, as such a large allocation may well fail 
>> depending on the host.
> 
> What about using MAP_NORESERVE ?

+1


-- 
Thanks,

David / dhildenb




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