[Bug 18745] 64-bit Mortal Kombat X crashes on unimplemented function KERNEL32.dll.GetLargePageMinimum

[wine-bugs at winehq.org]

https://bugs.winehq.org/show_bug.cgi?id=18745

--- Comment #21 from Austin English <austinenglish at gmail.com> ---
(In reply to Saulius K. from comment #20)
> Created attachment 53475 [details]
> test program for libhugetlbfs
> 
> (In reply to Austin English from comment #17)
> > 
> > I wasn't able to get that working on Fedora, using the sample code from
> > https://stackoverflow.com/questions/17225200/how-to-get-the-value-of-huge-
> > page-size (even after installing libhugetlbfs-devel).
> 
> And for me it worked .  I extended source code of the test program a bit
> (attaching it) and got this:
> 
>   huge page size = 2097152
>   huge page sizes [1] =
>    2097152
>   page sizes [2] =
>    4096
>    2097152
>   PF_LINUX_HUGETLB = 1048576
> 
> Austin, what exactly didn't work for you?

I can't easily retest and won't be able to for a few weeks. IIRC, I wasn't
getting any information from libhugetlbfs (i.e., returned null or 0), but
/proc/meminfo worked.

> > Getting it from /proc/meminfo seems to work though:
> > [austin at localhost ~]$ cat /proc/meminfo | grep Huge
> > AnonHugePages:         0 kB
> > HugePages_Total:       0
> > HugePages_Free:        0
> > HugePages_Rsvd:        0
> > HugePages_Surp:        0
> > Hugepagesize:       2048 kB
> > 
> > I've put together a patch that does that, instead.
> 
> On my system I get similar results only with an exception for AnonHugePages:
> 
>   AnonHugePages:    102400 kB
>   HugePages_Total:       0
>   HugePages_Free:        0
>   HugePages_Rsvd:        0
>   HugePages_Surp:        0
>   Hugepagesize:       2048 kB
> 
> But /proc/mem way is probably more hassle-free than linking to libhugetlbfs
> and using it.

I agree. As I said, I won't have time to look at this for a while, so feel free
to submit your libhugetlbfs patch, or a modified version of my own if you've
got time to work on this.

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