Noticed this when looking into  bug #809245 .

Here is some logging I collected, the hex number is the address of the transaction object, and there is also the URL. The state dump is before DoLoop runs it.


[252986:253040:0206/134417.960002:ERROR:http_cache_transaction.cc(824)] 0x25f139a1820 https://www.google.com/maps/vt/pb=!1m4!1m3!1i7!2i35!3i48!2m3!1e0!2sm!3i410108421!3m7!2sen!5e1105!12m4!1e68!2m2!1sset!2sRoadmap!4e1!5m4!1e4!8m2!1e0!1e1!6m7!1e12!2i2!26m1!4b1!39b1!44e1!50e0!23i4111425 has state:4 (STATE_INIT_ENTRY)
[252986:253040:0206/134417.960040:ERROR:http_cache_transaction.cc(824)] 0x25f139a1820 https://www.google.com/maps/vt/pb=!1m4!1m3!1i7!2i35!3i48!2m3!1e0!2sm!3i410108421!3m7!2sen!5e1105!12m4!1e68!2m2!1sset!2sRoadmap!4e1!5m4!1e4!8m2!1e0!1e1!6m7!1e12!2i2!26m1!4b1!39b1!44e1!50e0!23i4111425 has state:5 (STATE_OPEN_ENTRY)
[252986:253040:0206/134417.960166:ERROR:http_cache_transaction.cc(824)] 0x25f139a1820 https://www.google.com/maps/vt/pb=!1m4!1m3!1i7!2i35!3i48!2m3!1e0!2sm!3i410108421!3m7!2sen!5e1105!12m4!1e68!2m2!1sset!2sRoadmap!4e1!5m4!1e4!8m2!1e0!1e1!6m7!1e12!2i2!26m1!4b1!39b1!44e1!50e0!23i4111425 has state:6 (STATE_OPEN_ENTRY_COMPLETE)
[252986:253040:0206/134417.960205:ERROR:http_cache_transaction.cc(1142)] DoOpenEntryComplete:-2 https://www.google.com/maps/vt/pb=!1m4!1m3!1i7!2i35!3i48!2m3!1e0!2sm!3i410108421!3m7!2sen!5e1105!12m4!1e68!2m2!1sset!2sRoadmap!4e1!5m4!1e4!8m2!1e0!1e1!6m7!1e12!2i2!26m1!4b1!39b1!44e1!50e0!23i4111425
[252986:253040:0206/134417.960243:ERROR:http_cache_transaction.cc(824)] 0x25f139a1820 https://www.google.com/maps/vt/pb=!1m4!1m3!1i7!2i35!3i48!2m3!1e0!2sm!3i410108421!3m7!2sen!5e1105!12m4!1e68!2m2!1sset!2sRoadmap!4e1!5m4!1e4!8m2!1e0!1e1!6m7!1e12!2i2!26m1!4b1!39b1!44e1!50e0!23i4111425 has state:9 (STATE_CREATE_ENTRY)
[252986:253040:0206/134417.960421:ERROR:http_cache_transaction.cc(824)] 0x25f139a1820 https://www.google.com/maps/vt/pb=!1m4!1m3!1i7!2i35!3i48!2m3!1e0!2sm!3i410108421!3m7!2sen!5e1105!12m4!1e68!2m2!1sset!2sRoadmap!4e1!5m4!1e4!8m2!1e0!1e1!6m7!1e12!2i2!26m1!4b1!39b1!44e1!50e0!23i4111425 has state:10 (STATE_CREATE_ENTRY_COMPLETE)
[252986:253040:0206/134417.960463:ERROR:http_cache_transaction.cc(1228)] DoCreateEntryComplete:0 https://www.google.com/maps/vt/pb=!1m4!1m3!1i7!2i35!3i48!2m3!1e0!2sm!3i410108421!3m7!2sen!5e1105!12m4!1e68!2m2!1sset!2sRoadmap!4e1!5m4!1e4!8m2!1e0!1e1!6m7!1e12!2i2!26m1!4b1!39b1!44e1!50e0!23i4111425
[252986:253040:0206/134417.960504:ERROR:http_cache_transaction.cc(824)] 0x25f139a1820 https://www.google.com/maps/vt/pb=!1m4!1m3!1i7!2i35!3i48!2m3!1e0!2sm!3i410108421!3m7!2sen!5e1105!12m4!1e68!2m2!1sset!2sRoadmap!4e1!5m4!1e4!8m2!1e0!1e1!6m7!1e12!2i2!26m1!4b1!39b1!44e1!50e0!23i4111425 has state:11 (STATE_ADD_TO_ENTRY)

On different object now:
[252986:253040:0206/134428.517579:ERROR:http_cache_transaction.cc(824)] 0x25f139a2a20 https://www.google.com/maps/vt/pb=!1m4!1m3!1i7!2i35!3i48!2m3!1e0!2sm!3i410108421!3m7!2sen!5e1105!12m4!1e68!2m2!1sset!2sRoadmap!4e1!5m4!1e4!8m2!1e0!1e1!6m7!1e12!2i2!26m1!4b1!39b1!44e1!50e0!23i4111425 has state:4 (STATE_INIT_ENTRY)
[252986:253040:0206/134428.517647:ERROR:http_cache_transaction.cc(824)] 0x25f139a2a20 https://www.google.com/maps/vt/pb=!1m4!1m3!1i7!2i35!3i48!2m3!1e0!2sm!3i410108421!3m7!2sen!5e1105!12m4!1e68!2m2!1sset!2sRoadmap!4e1!5m4!1e4!8m2!1e0!1e1!6m7!1e12!2i2!26m1!4b1!39b1!44e1!50e0!23i4111425 has state:5 (STATE_OPEN_ENTRY)
[252986:253040:0206/134428.545490:ERROR:http_cache_transaction.cc(824)] 0x25f139a2a20 https://www.google.com/maps/vt/pb=!1m4!1m3!1i7!2i35!3i48!2m3!1e0!2sm!3i410108421!3m7!2sen!5e1105!12m4!1e68!2m2!1sset!2sRoadmap!4e1!5m4!1e4!8m2!1e0!1e1!6m7!1e12!2i2!26m1!4b1!39b1!44e1!50e0!23i4111425 has state:6 (STATE_OPEN_ENTRY_COMPLETE)
[252986:253040:0206/134428.545548:ERROR:http_cache_transaction.cc(1142)] DoOpenEntryComplete:0 https://www.google.com/maps/vt/pb=!1m4!1m3!1i7!2i35!3i48!2m3!1e0!2sm!3i410108421!3m7!2sen!5e1105!12m4!1e68!2m2!1sset!2sRoadmap!4e1!5m4!1e4!8m2!1e0!1e1!6m7!1e12!2i2!26m1!4b1!39b1!44e1!50e0!23i4111425
[252986:253040:0206/134428.545584:ERROR:http_cache_transaction.cc(824)] 0x25f139a2a20 https://www.google.com/maps/vt/pb=!1m4!1m3!1i7!2i35!3i48!2m3!1e0!2sm!3i410108421!3m7!2sen!5e1105!12m4!1e68!2m2!1sset!2sRoadmap!4e1!5m4!1e4!8m2!1e0!1e1!6m7!1e12!2i2!26m1!4b1!39b1!44e1!50e0!23i4111425 has state:11 (STATE_ADD_TO_ENTRY)
[252986:253040:0206/134428.554620:ERROR:http_cache_transaction.cc(824)] 0x25f139a2a20 https://www.google.com/maps/vt/pb=!1m4!1m3!1i7!2i35!3i48!2m3!1e0!2sm!3i410108421!3m7!2sen!5e1105!12m4!1e68!2m2!1sset!2sRoadmap!4e1!5m4!1e4!8m2!1e0!1e1!6m7!1e12!2i2!26m1!4b1!39b1!44e1!50e0!23i4111425 has state:12 (STATE_ADD_TO_ENTRY_COMPLETE)
[252986:253040:0206/134428.554695:ERROR:http_cache_transaction.cc(824)] 0x25f139a2a20 https://www.google.com/maps/vt/pb=!1m4!1m3!1i7!2i35!3i48!2m3!1e0!2sm!3i410108421!3m7!2sen!5e1105!12m4!1e68!2m2!1sset!2sRoadmap!4e1!5m4!1e4!8m2!1e0!1e1!6m7!1e12!2i2!26m1!4b1!39b1!44e1!50e0!23i4111425 has state:14 (STATE_CACHE_READ_RESPONSE)
[252986:253040:0206/134428.554744:ERROR:http_cache_transaction.cc(824)] 0x25f139a2a20 https://www.google.com/maps/vt/pb=!1m4!1m3!1i7!2i35!3i48!2m3!1e0!2sm!3i410108421!3m7!2sen!5e1105!12m4!1e68!2m2!1sset!2sRoadmap!4e1!5m4!1e4!8m2!1e0!1e1!6m7!1e12!2i2!26m1!4b1!39b1!44e1!50e0!23i4111425 has state:15 (STATE_CACHE_READ_RESPONSE_COMPLETE)
[252986:253040:0206/134428.554782:ERROR:http_cache_transaction.cc(1442)] OnCacheReadError, io_buf_len_ = 0 https://www.google.com/maps/vt/pb=!1m4!1m3!1i7!2i35!3i48!2m3!1e0!2sm!3i410108421!3m7!2sen!5e1105!12m4!1e68!2m2!1sset!2sRoadmap!4e1!5m4!1e4!8m2!1e0!1e1!6m7!1e12!2i2!26m1!4b1!39b1!44e1!50e0!23i4111425


It looks like AddToEntry on a freshly created entry never processes for some reason, and then when an alias is created, it's opened and added fine, but then the read runs into trouble since the thing is empty, so it just restarts.