[Bug sanitizer/59733] [4.9 Regression] bootstrap-asan failed to bootstrap

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59733

--- Comment #16 from H.J. Lu <hjl.tools at gmail dot com> ---
(In reply to Kostya Serebryany from comment #15)
> This looks very weird: 
> 602001200000-602001210000 rw-p 00000000 00:00 0 
> 602001210000-602001220000 rw-p 00000000 00:00 0 
> 
> We have two adjacent mappings with the same perms
>  which are not merged by the kernel into one.
> This is not what I typically see on my linux. 
> Is this some kind of modified kernel config or something? 
> 
> If your kernel behaves this way no winder that mmap eventually fails.

I am running 3.12.8-200.fc19.x86_64 from Fedora 19.