Re: [PULL 0/2] Linux user for v11 patches

[Michael Tokarev <mjt@tls.msk.ru>]

On 24.03.2026 01:53, Richard Henderson wrote:
> On 3/23/26 17:52, Michael Tokarev wrote:
>> On 16.03.2026 20:00, Helge Deller wrote:
>>> On 3/16/26 14:43, Michael Tokarev wrote:
>>>> On 13.03.2026 21:30, Helge Deller wrote:
>>>>
>>>>> Razvan Ghiorghe (2):
>>>>>    linux-user: Fix zero_bss for RX PT_LOAD segments
>>>>>    linux-user: fix mremap with old_size=0 for shared mappings
>>>>
>>>> This looks like qemu-stable material, is it not?
>>>
>>> Yes.
>>
>> ..with one caveat: mremap with old_size=0 fix doesn't apply to 10.0,
>> the current LTS stable series, because 10.0.x doesn't have f55fc1c092
>> "accel/tcg: Add clear_flags argument to page_set_flags", because of this:
>>
>> +        page_set_flags(new_addr, new_addr + new_size - 1,
>> +                       prot | PAGE_VALID, PAGE_VALID);
>>
>> What would be the correct construct for this for 10.0.x?
>> (Adding rth to Cc list).
> 
> Probably
> 
>    page_set_flags(new_addr, new_addr + new_size - 1,
>                   prot | PAGE_VALID | PAGE_RESET);
> 

Well, at least the testcase works with this version.  Thank you!

BTW, do we have another testcase for this scenario somewhere,
like in LTP or something?  Looking at linux test project I don't
see this case covered.

/mjt