Re: [PATCH] dump read-only anonymous memory in core files

[Dave McCracken]

--On Tuesday, October 07, 2003 02:06:34 -0700 Linus Torvalds
<torvalds@xxxxxxxx> wrote:

> What about shared mappings (that test should be VM_MAYSHARE)?
> 
> My inclination would be to not dump them if they are backed by a file, 
> even if the mmap is writable.

All shared areas are 'file backed' but some of them are only backed by
shmfs.  I think we should at least dump those areas since they can't be
retrieved later.  I agree it'd be reasonable to not dump areas backed by
real files, but it'd require a simple way to distinguish them from
shmfs-backed areas.

Dave McCracken

======================================================================
Dave McCracken          IBM Linux Base Kernel Team      1-512-838-3059
dmccr@xxxxxxxxxx                                        T/L   678-3059

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