[squid-users] What is "Objects cancelled"?

Hello.

The machine I'm running Squid (v2.4S7, on a Linux box) on crashed today.
After bring it back up I examined cache.log to make sure all was well. A
fragment of the log file is shown below.

I'm a little concerned about that "2698 Objects cancelled." entry because
I don't recall having seen it before. Can someone enlighten me as to why
an object, let alone 2698 of them, would be cancelled on Squid startup?

Thanks.

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2002/11/14 12:44:35| Finished rebuilding storage from disk.
2002/11/14 12:44:35| 43269 Entries scanned
2002/11/14 12:44:35| 0 Invalid entries.
2002/11/14 12:44:35| 0 With invalid flags.
2002/11/14 12:44:35| 40571 Objects loaded.
2002/11/14 12:44:35| 0 Objects expired.
2002/11/14 12:44:35| 2698 Objects cancelled.
2002/11/14 12:44:35| 0 Duplicate URLs purged.
2002/11/14 12:44:35| 0 Swapfile clashes avoided.
2002/11/14 12:44:35| Took 2.8 seconds (14315.4 objects/sec).
2002/11/14 12:44:35| Beginning Validation Procedure
2002/11/14 12:44:35| Completed Validation Procedure
2002/11/14 12:44:35| Validated 40571 Entries
2002/11/14 12:44:35| store_swap_size = 383360k
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Received on Thu Nov 14 2002 - 11:14:42 MST