Just wanted to point out exact similarities between the crashes in initial report and examples I posted above.
Firstly, all crashes have some reference to user level locks (ull) functions - mysql_ull_cleanup, ull_get_key, etc, and most if them have MDL lock reference too.
A very similar parts of the initial, second crash and crash from PXC 5.6.24 I mentioned before:
Just wanted to point out exact similarities between the crashes in initial report and examples I posted above.
Firstly, all crashes have some reference to user level locks (ull) functions - mysql_ull_cleanup, ull_get_key, etc, and most if them have MDL lock reference too.
A very similar parts of the initial, second crash and crash from PXC 5.6.24 I mentioned before:
(MDL_lock: :Ticket_ list::remove_ ticket( MDL_ticket* )+0x11) [0x6b5241] :remove_ ticket( MDL_lock: :Ticket_ list MDL_lock::*, MDL_ticket* )+0x48) [0x6b5df8] :release_ lock(enum_ mdl_duration, MDL_ticket* )+0x1a) [0x6b696a] ull_cleanup( THD*)+0x49) [0x671049] ``` mysqld( _ZN8MDL_ lock11Ticket_ list13remove_ ticketEP10MDL_ ticket+ 0x3e)[0x6559ce] mysqld( _ZN8MDL_ lock13remove_ ticketEMS_ NS_11Ticket_ listEP10MDL_ ticket+ 0x93)[0x658533] mysqld( _ZN11MDL_ context12releas e_lockE17enum_ mdl_durationP10 MDL_ticket+ 0x1a)[0x6585da] mysqld( _Z17mysql_ ull_cleanupP3TH D+0x49) [0x5fbdf9]
(MDL_lock:
(MDL_context:
(mysql_
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