cockroachdb / cockroachdb/cockroach

kvserver: 10-byte or 12-byte discrepancy in `SysBytes`

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branch-master C-bug P-1 T-kv
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Description

We occasionally see 10-byte discrepancies in `SysBytes`, e.g. in these test failures:

* https://github.com/cockroachdb/cockroach/issues/86542
* https://github.com/cockroachdb/cockroach/issues/93890

The source of these discrepancies is unknown. We should find out what it is.

#93897 ignores this discrepancy in KVNemesis. We should remove that exception when this is fixed.

Jira issue: CRDB-22591

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