This is almost certainly due to some corruption. Basically, the call to
"cache_or_unpack_entry()" failed, which in turn is because
'unpack_entry()' will have failed.
And since you didn't see any other error, that failure is almost certainly
due to unpack_compressed_entry() having failed. We don't print out _why_
(which is a bit sad), but the only thing that unpack_compressed_entry()
does is to just "inflate()" the data at that offset.
So it probably got a zlib data error, or an adler32 crc failure.
An interrupted fetch shouldn't have caused this, it really should only
happen if you have some actual filesystem data error. Something didn't get
written back correctly, or the page cache isn't coherent (or it got
corrupted by something else like a wild kernel pointer, of course).
Linus
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