[ros-dev] [ros-diffs] 01/01: [NTOS:MM] Fix paged pool expansion

[Pierre Schweitzer]

Hi Timo et al.,

To make the issue wider known than just me comment on GitHub. That
commit introduced a regression.

Le 20/08/2018 à 18:07, Timo Kreuzer a écrit :
> https://git.reactos.org/?p=reactos.git;a=commitdiff;h=c219be9409af429909b1433da536516b3c3ab823
> 
> commit c219be9409af429909b1433da536516b3c3ab823
> Author:     Timo Kreuzer <timo.kreuzer at reactos.org>
> AuthorDate: Sun Feb 4 19:20:56 2018 +0100
> Commit:     Timo Kreuzer <timo.kreuzer at reactos.org>
> CommitDate: Mon Aug 20 18:07:35 2018 +0200
> 
>     [NTOS:MM] Fix paged pool expansion
> ---
>  ntoskrnl/mm/ARM3/pool.c | 11 ++++++++---
>  1 file changed, 8 insertions(+), 3 deletions(-)
> 
> diff --git a/ntoskrnl/mm/ARM3/pool.c b/ntoskrnl/mm/ARM3/pool.c
> index 7cebabe818..113a7aa981 100644
> --- a/ntoskrnl/mm/ARM3/pool.c
> +++ b/ntoskrnl/mm/ARM3/pool.c
> @@ -561,10 +565,11 @@ MiAllocatePoolPages(IN POOL_TYPE PoolType,
>                  MiInitializePfnForOtherProcess(PageFrameNumber,
>                                                 (PMMPTE)PointerPde,
>                                                 MmSystemPageDirectory[(PointerPde - MiAddressToPde(NULL)) / PDE_COUNT]);
> +#endif
>  
>                  /* Write the actual PDE now */
> -//                MI_WRITE_VALID_PDE(PointerPde, TempPde);
> -#endif
> +                MI_WRITE_VALID_PDE(PointerPde, TempPde);
> +

That little change for x86 actually breaks VBox support. It hits an
ASSERT during 3rd stage:
*** Assertion failed: PointerPde->u.Hard.Valid == 0
*** Source File:
/srv/buildbot/Build_GCCLin_x86/build/ntoskrnl/mm/ARM3/miarm.h, line 975
See testbots for instance:
https://build.reactos.org/builders/Test%20VBox/builds/8625/steps/test/logs/stdio

Cheers,
Pierre

-- 
Pierre Schweitzer <pierre at reactos.org>
System & Network Administrator
Senior Kernel Developer
ReactOS Deutschland e.V.

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