Re: [PATCH 2/2] Flag and skip over packfiles known to be invalid.

"Shawn O. Pearce" [off-list ref] writes:

If we've already looked at a packfile and determined it isn't
valid/usable as a pack, we shouldn't try to use it again in
the future either.  This avoids multiple error messages from
the same packfile.

I haven't looked your patch very closely, but two successive
"git-repack -a -d" would produce the packfile under the same
name, but with different parameters (--window or --depth), the
old .idx and new .pack may not match.

Can this be possible (time flows from top to bottom):

	git-repack -a -d		somebody else

	produces a new .pack/.idx

        mv new .pack to objects/pack

					mmap .idx (old)
					finds .pack does not match

	mv new .idx to objects/pack
	
Is this something we care about?