#14151 by @tomyouyou (backport #14272) #14276
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In the init_it2 function, when returning stop with none 'From'. This will result in the following exceptions:
2025-06-28 16:01:15.636 [error] <0.1306.0> crasher:, initial call: rabbit_amqqueue_process:init/1, pid: <0.1306.0>, registered_name: [], exception exit: {bad_return_value, {stop,normal, {existing, {amqqueue, {resource,<<"/">>,queue,<<"q13">>}, false,false,none, [{<<"x-queue-type">>,longstr, <<"classic">>}], <14981.1295.0>,[],[],[],undefined, undefined,[],[],live,0,[],<<"/">>, #{user => <<"rabbit_inside_user">>, system_creation => 1751098305370332559, recover_on_declare => true, creator =>, {1751099091,"10.225.80.5",50046, "none"}, last_system_creation =>, 1751096873022515385}, rabbit_classic_queue,#{}}}, {q,{amqqueue, {resource,<<"/">>,queue,<<"q13">>}, false,false,none, [{<<"x-queue-type">>,longstr, <<"classic">>}], <0.1306.0>,[],[],[],undefined,undefined,[], [],crashed,0,[],<<"/">>, #{user => <<"rabbit_inside_user">>, system_creation => 1751096873022515385, recover_on_declare => false, creator =>, {1751097374,"10.225.80.5",56254, "none"}, recover_vsn => 0, zretarts => [-576459962]}, rabbit_classic_queue,#{}}, none,false,undefined,undefined, {state, {queue,[],[],0}, {active,-576459961468389,1.0}, []}, undefined,undefined,undefined,undefined, {state,none,30000,undefined}, #{},undefined,undefined,undefined, {state,#{},delegate}, undefined,undefined,undefined,undefined, 'drop-head',0,0,running,false,0,undefined, <<"/">>,undefined,0,false,0,undefined,0,0,0,[], undefined,0,0,0,0,true}}}, in function gen_server2:terminate/3 (gen_server2.erl, line 1172), ancestors: [<0.1089.0>,<0.511.0>,<0.471.0>,<0.470.0>, rabbit_vhost_sup_sup,rabbit_sup,<0.250.0>], message_queue_len: 0, messages: [], links: [<0.1089.0>], dictionary: [{virtual_host,<<"/">>}, {rand_seed, {#{max => 288230376151711743,type => exsplus, next => #Fun<rand.5.65977474>, jump => #Fun<rand.3.65977474>}, [134188285183854767|82006587006243019]}}, {debug_openv_dt_cfg,{1751097655,[1]}}, {process_name, {rabbit_amqqueue_process, {resource,<<"/">>,queue,<<"q13">>}}}], trap_exit: true, status: running, heap_size: 28690, stack_size: 28, reductions: 46062, neighbours:,
(cherry picked from commit e6ec4df)
(cherry picked from commit 1afbdca)
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This is #14151 by @tomyouyou re-submitted by me to provide some context and make more suites run.
The value returned by the function in question is eventually returned by
handle_call/3, whichsupports two types of responses: explicit via
gen_server:reply/2and "automatic" via a return value, where theFromvalue is implicitly used by the gen .This PR addresses a case where a
handle_call/3returns a{stop, Reason, Reply, NewState}, in which case the reply is sent by an OTP loop process beforegen_serverterminates. The reply will implicitly (for ahandle_call/3implementation reader) use the caller/Fromvalue, which in some cases can benone.This is an automatic backport of pull request #14272 done by Mergify.