Re: [Boost-users] [pool] singlton_pool::malloc returning bad address

Subject: Re: [Boost-users] [pool] singlton_pool::malloc returning bad address
From: Jonathan Leonard (v-jleonard_at_[hidden])
Date: 2009-07-02 16:37:40

P.S.  I don't have this problem if I use tbb for all of the allocations (but profiling my app showed that 50% of the time was spent in tbb::scalable_alloc so I introduced singleton_pool to address that).

-----Original Message-----
From: boost-users-bounces_at_[hidden] [mailto:boost-users-bounces_at_[hidden]] On Behalf Of Jonathan Leonard
Sent: Thursday, July 02, 2009 1:04 PM
To: boost-users_at_[hidden]
Subject: Re: [Boost-users] [pool] singlton_pool::malloc returning bad address

I'm only calling malloc() and free().  I'm also using tbb's scalable_allocator for non- O-O allocations (if that would matter).

This is with boost 1.37.

--Jonathan

-----Original Message-----
From: boost-users-bounces_at_[hidden] [mailto:boost-users-bounces_at_[hidden]] On Behalf Of Steven Watanabe
Sent: Thursday, July 02, 2009 12:45 PM
To: boost-users_at_[hidden]
Subject: Re: [Boost-users] [pool] singlton_pool::malloc returning bad address

AMDG

Jonathan Leonard wrote:
> In a long running process on Windows, I'm seeing singleton_pool::malloc eventually return addresses such as 0x100f34b0 (which in this case [according to vmmap] is an address into a 'read-only' section (.rdata) of a DLL which was loaded for 'execute/copy on write').  The system [rightly] barfs at the request to write to that address.
>
> Anyone have an idea what could be going on here?
>   

Are you only calling malloc and free or are you using other
singleton_pool function like malloc_n?

What version of Boost are you using?

In Christ,
Steven Watanabe

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