Am 12.04.2015 um 10:34 schrieb Alexander Graf:
>> Am 11.04.2015 um 23:46 schrieb Andreas Färber <afaer...@suse.de>:
>>
>>> Am 11.04.2015 um 23:33 schrieb Peter Maydell:
>>>> On 11 April 2015 at 21:28, Andreas Färber <afaer...@suse.de> wrote:
>>>> Are you sure that QEMU / runcom / pi_10.com still try to map to that
>>>> address zero?
>>>
>>> It's the first thing runcom.c's main() does after checking you've
>>> passed it enough command line arguments.
>>
>> This?
>>
>> vm86_mem = mmap((void *)0x00000000, 0x110000,
>> PROT_WRITE | PROT_READ | PROT_EXEC,
>> MAP_FIXED | MAP_ANON | MAP_PRIVATE, -1, 0);
>> if (vm86_mem == MAP_FAILED) {
>> perror("mmap");
>> exit(1);
>> }
>>
>> For whatever reason it does not take the MAP_FAILED path here...
>
> Wasn't a NULL argument for the address a hint saying "map wherever you
> please"? I also feel like I'm missing context here - what exactly is broken?
Sorry for CC'ing you so late, I believe you and rth had been fiddling
with guest bases and that stuff back in the day... Please just take a
look at the whole series, in particular patches 3 and 7.
Thanks,
Andreas
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