Oversized allocation: 393216 bytes in kafka::op_context::create_response_placeholders

[dlex]

on (amd64, VM) in job https://buildkite.com/redpanda/vtools/builds/7528#01881429-6a58-4a0b-b50e-51408b80ff78

test_id:    rptest.scale_tests.many_partitions_test.ManyPartitionsTest.test_many_partitions

While doing

std::vector<kafka::fetchable_partition_response>::push_back(kafka::fetchable_partition_response&&)

Backtrace:

[Backtrace #0]
void seastar::backtrace<seastar::current_backtrace_tasklocal()::$_3>(seastar::current_backtrace_tasklocal()::$_3&&) at /v/build/v_deps_build/seastar-prefix/src/seastar/include/seastar/util/backtrace.hh:60
 (inlined by) seastar::current_backtrace_tasklocal() at /v/build/v_deps_build/seastar-prefix/src/seastar/src/util/backtrace.cc:86
 (inlined by) seastar::current_tasktrace() at /v/build/v_deps_build/seastar-prefix/src/seastar/src/util/backtrace.cc:137
 (inlined by) seastar::current_backtrace() at /v/build/v_deps_build/seastar-prefix/src/seastar/src/util/backtrace.cc:170
seastar::memory::cpu_pages::warn_large_allocation(unsigned long) at /v/build/v_deps_build/seastar-prefix/src/seastar/src/core/memory.cc:780
 (inlined by) seastar::memory::cpu_pages::check_large_allocation(unsigned long) at /v/build/v_deps_build/seastar-prefix/src/seastar/src/core/memory.cc:788
 (inlined by) seastar::memory::cpu_pages::allocate_large(unsigned int) at /v/build/v_deps_build/seastar-prefix/src/seastar/src/core/memory.cc:794
 (inlined by) seastar::memory::allocate_large(unsigned long) at /v/build/v_deps_build/seastar-prefix/src/seastar/src/core/memory.cc:1345
 (inlined by) seastar::memory::allocate(unsigned long) at /v/build/v_deps_build/seastar-prefix/src/seastar/src/core/memory.cc:1406
operator new(unsigned long) at /v/build/v_deps_build/seastar-prefix/src/seastar/src/core/memory.cc:2087
void* std::__1::__libcpp_operator_new<unsigned long>(unsigned long) at /vectorized/llvm/bin/../include/c++/v1/new:245
 (inlined by) std::__1::__libcpp_allocate(unsigned long, unsigned long) at /vectorized/llvm/bin/../include/c++/v1/new:271
 (inlined by) std::__1::allocator<kafka::fetchable_partition_response>::allocate(unsigned long) at /vectorized/llvm/bin/../include/c++/v1/__memory/allocator.h:105
 (inlined by) std::__1::allocator_traits<std::__1::allocator<kafka::fetchable_partition_response> >::allocate(std::__1::allocator<kafka::fetchable_partition_response>&, unsigned long) at /vectorized/llvm/bin/../include/c++/v1/__memory/allocator_traits.h:262
 (inlined by) __split_buffer at /vectorized/llvm/bin/../include/c++/v1/__split_buffer:306
 (inlined by) void std::__1::vector<kafka::fetchable_partition_response, std::__1::allocator<kafka::fetchable_partition_response> >::__push_back_slow_path<kafka::fetchable_partition_response>(kafka::fetchable_partition_response&&) at /vectorized/llvm/bin/../include/c++/v1/vector:1517
std::__1::vector<kafka::fetchable_partition_response, std::__1::allocator<kafka::fetchable_partition_response> >::push_back(kafka::fetchable_partition_response&&) at /vectorized/llvm/bin/../include/c++/v1/vector:1549
 (inlined by) operator() at /var/lib/buildkite-agent/builds/buildkite-amd64-builders-i-0168f1d5f24b16251-1/redpanda/redpanda/src/v/kafka/server/handlers/fetch.cc:852
 (inlined by) kafka::op_context::create_response_placeholders()::$_6 std::__1::for_each<boost::iterators::transform_iterator<kafka::fetch_partitions_linked_hash_map::make_partition_iterator(boost::intrusive::list_iterator<boost::intrusive::mhtraits<kafka::fetch_partitions_linked_hash_map::entry, boost::intrusive::list_member_hook<boost::intrusive::link_mode<(boost::intrusive::link_mode_type)2> >, &kafka::fetch_partitions_linked_hash_map::entry::_hook>, true>)::{lambda(kafka::fetch_partitions_linked_hash_map::entry const&)#1}, boost::intrusive::list_iterator<boost::intrusive::mhtraits<kafka::fetch_partitions_linked_hash_map::entry, boost::intrusive::list_member_hook<boost::intrusive::link_mode<(boost::intrusive::link_mode_type)2> >, &kafka::fetch_partitions_linked_hash_map::entry::_hook>, true>, boost::use_default, boost::use_default>, kafka::op_context::create_response_placeholders()::$_6>(boost::iterators::transform_iterator<kafka::fetch_partitions_linked_hash_map::make_partition_iterator(boost::intrusive::list_iterator<boost::intrusive::mhtraits<kafka::fetch_partitions_linked_hash_map::entry, boost::intrusive::list_member_hook<boost::intrusive::link_mode<(boost::intrusive::link_mode_type)2> >, &kafka::fetch_partitions_linked_hash_map::entry::_hook>, true>)::{lambda(kafka::fetch_partitions_linked_hash_map::entry const&)#1}, boost::intrusive::list_iterator<boost::intrusive::mhtraits<kafka::fetch_partitions_linked_hash_map::entry, boost::intrusive::list_member_hook<boost::intrusive::link_mode<(boost::intrusive::link_mode_type)2> >, &kafka::fetch_partitions_linked_hash_map::entry::_hook>, true>, boost::use_default, boost::use_default>, boost::iterators::transform_iterator<kafka::fetch_partitions_linked_hash_map::make_partition_iterator(boost::intrusive::list_iterator<boost::intrusive::mhtraits<kafka::fetch_partitions_linked_hash_map::entry, boost::intrusive::list_member_hook<boost::intrusive::link_mode<(boost::intrusive::link_mode_type)2> >, &kafka::fetch_partitions_linked_hash_map::entry::_hook>, true>)::{lambda(kafka::fetch_partitions_linked_hash_map::entry const&)#1}, boost::intrusive::list_iterator<boost::intrusive::mhtraits<kafka::fetch_partitions_linked_hash_map::entry, boost::intrusive::list_member_hook<boost::intrusive::link_mode<(boost::intrusive::link_mode_type)2> >, &kafka::fetch_partitions_linked_hash_map::entry::_hook>, true>, boost::use_default, boost::use_default>, kafka::op_context::create_response_placeholders()::$_6) at /vectorized/llvm/bin/../include/c++/v1/__algorithm/for_each.h:26
 (inlined by) kafka::op_context::create_response_placeholders() at /var/lib/buildkite-agent/builds/buildkite-amd64-builders-i-0168f1d5f24b16251-1/redpanda/redpanda/src/v/kafka/server/handlers/fetch.cc:836
op_context at /var/lib/buildkite-agent/builds/buildkite-amd64-builders-i-0168f1d5f24b16251-1/redpanda/redpanda/src/v/kafka/server/handlers/fetch.cc:803
std::__1::__unique_if<kafka::op_context>::__unique_single std::__1::make_unique<kafka::op_context, kafka::request_context, seastar::smp_service_group&>(kafka::request_context&&, seastar::smp_service_group&) at /vectorized/llvm/bin/../include/c++/v1/__memory/unique_ptr.h:725
 (inlined by) kafka::handler_template<kafka::fetch_api, (short)4, (short)11, seastar::future<seastar::foreign_ptr<std::__1::unique_ptr<kafka::response, std::__1::default_delete<kafka::response> > > >, &kafka::fetch_memory_estimator>::handle(kafka::request_context, seastar::smp_service_group) at /var/lib/buildkite-agent/builds/buildkite-amd64-builders-i-0168f1d5f24b16251-1/redpanda/redpanda/src/v/kafka/server/handlers/fetch.cc:748
kafka::handler_base<false>::handle(kafka::request_context&&, seastar::smp_service_group) const at /var/lib/buildkite-agent/builds/buildkite-amd64-builders-i-0168f1d5f24b16251-1/redpanda/redpanda/src/v/kafka/server/handlers/handler_interface.cc:88
kafka::process_generic(kafka::handler_interface const*, kafka::request_context&&, seastar::smp_service_group, kafka::session_resources const&) at /var/lib/buildkite-agent/builds/buildkite-amd64-builders-i-0168f1d5f24b16251-1/redpanda/redpanda/src/v/kafka/server/requests.cc:110
kafka::process_request(kafka::request_context&&, seastar::smp_service_group, kafka::session_resources const&) at /var/lib/buildkite-agent/builds/buildkite-amd64-builders-i-0168f1d5f24b16251-1/redpanda/redpanda/src/v/kafka/server/requests.cc:286
operator() at /var/lib/buildkite-agent/builds/buildkite-amd64-builders-i-0168f1d5f24b16251-1/redpanda/redpanda/src/v/kafka/server/connection_context.cc:374
decltype ((static_cast<kafka::connection_context::dispatch_method_once(kafka::request_header, unsigned long)::$_2::operator()(kafka::session_resources)::{lambda(iobuf)#1}&>({parm#1}))(static_cast<iobuf>({parm#2}))) std::__1::__invoke<kafka::connection_context::dispatch_method_once(kafka::request_header, unsigned long)::$_2::operator()(kafka::session_resources)::{lambda(iobuf)#1}&, iobuf>(kafka::connection_context::dispatch_method_once(kafka::request_header, unsigned long)::$_2::operator()(kafka::session_resources)::{lambda(iobuf)#1}&, iobuf&&) at /vectorized/llvm/bin/../include/c++/v1/type_traits:3640
 (inlined by) std::__1::invoke_result<kafka::connection_context::dispatch_method_once(kafka::request_header, unsigned long)::$_2::operator()(kafka::session_resources)::{lambda(iobuf)#1}&, iobuf>::type std::__1::invoke<kafka::connection_context::dispatch_method_once(kafka::request_header, unsigned long)::$_2::operator()(kafka::session_resources)::{lambda(iobuf)#1}&, iobuf>(kafka::connection_context::dispatch_method_once(kafka::request_header, unsigned long)::$_2::operator()(kafka::session_resources)::{lambda(iobuf)#1}&, iobuf&&) at /vectorized/llvm/bin/../include/c++/v1/__functional/invoke.h:93
 (inlined by) auto seastar::internal::future_invoke<kafka::connection_context::dispatch_method_once(kafka::request_header, unsigned long)::$_2::operator()(kafka::session_resources)::{lambda(iobuf)#1}&, iobuf>(kafka::connection_context::dispatch_method_once(kafka::request_header, unsigned long)::$_2::operator()(kafka::session_resources)::{lambda(iobuf)#1}&, iobuf&&) at /vectorized/include/seastar/core/future.hh:1155
 (inlined by) operator() at /vectorized/include/seastar/core/future.hh:1455
 (inlined by) void seastar::futurize<seastar::future<void> >::satisfy_with_result_of<seastar::future<iobuf>::then_impl_nrvo<kafka::connection_context::dispatch_method_once(kafka::request_header, unsigned long)::$_2::operator()(kafka::session_resources)::{lambda(iobuf)#1}, seastar::future<void> >(kafka::connection_context::dispatch_method_once(kafka::request_header, unsigned long)::$_2::operator()(kafka::session_resources)::{lambda(iobuf)#1}&&)::{lambda(seastar::internal::promise_base_with_type<void>&&, kafka::connection_context::dispatch_method_once(kafka::request_header, unsigned long)::$_2::operator()(kafka::session_resources)::{lambda(iobuf)#1}&, seastar::future_state<iobuf>&&)#1}::operator()(seastar::internal::promise_base_with_type<void>&&, kafka::connection_context::dispatch_method_once(kafka::request_header, unsigned long)::$_2::operator()(kafka::session_resources)::{lambda(iobuf)#1}&, seastar::future_state<iobuf>&&) const::{lambda()#1}>(seastar::internal::promise_base_with_type<void>&&, kafka::connection_context::dispatch_method_once(kafka::request_header, unsigned long)::$_2::operator()(kafka::session_resources)::{lambda(iobuf)#1}&&) at /vectorized/include/seastar/core/future.hh:1984
 (inlined by) operator() at /vectorized/include/seastar/core/future.hh:1451
 (inlined by) seastar::continuation<seastar::internal::promise_base_with_type<void>, kafka::connection_context::dispatch_method_once(kafka::request_header, unsigned long)::$_2::operator()(kafka::session_resources)::{lambda(iobuf)#1}, seastar::future<iobuf>::then_impl_nrvo<kafka::connection_context::dispatch_method_once(kafka::request_header, unsigned long)::$_2::operator()(kafka::session_resources)::{lambda(iobuf)#1}, seastar::future<void> >(kafka::connection_context::dispatch_method_once(kafka::request_header, unsigned long)::$_2::operator()(kafka::session_resources)::{lambda(iobuf)#1}&&)::{lambda(seastar::internal::promise_base_with_type<void>&&, kafka::connection_context::dispatch_method_once(kafka::request_header, unsigned long)::$_2::operator()(kafka::session_resources)::{lambda(iobuf)#1}&, seastar::future_state<iobuf>&&)#1}, iobuf>::run_and_dispose() at /vectorized/include/seastar/core/future.hh:742
seastar::reactor::run_tasks(seastar::reactor::task_queue&) at /v/build/v_deps_build/seastar-prefix/src/seastar/src/core/reactor.cc:2557
 (inlined by) seastar::reactor::run_some_tasks() at /v/build/v_deps_build/seastar-prefix/src/seastar/src/core/reactor.cc:3020
seastar::reactor::do_run() at /v/build/v_deps_build/seastar-prefix/src/seastar/src/core/reactor.cc:3189
seastar::reactor::run() at /v/build/v_deps_build/seastar-prefix/src/seastar/src/core/reactor.cc:3072
seastar::app_template::run_deprecated(int, char**, std::__1::function<void ()>&&) at /v/build/v_deps_build/seastar-prefix/src/seastar/src/core/app-template.cc:265
seastar::app_template::run(int, char**, std::__1::function<seastar::future<int> ()>&&) at /v/build/v_deps_build/seastar-prefix/src/seastar/src/core/app-template.cc:156
application::run(int, char**) at /var/lib/buildkite-agent/builds/buildkite-amd64-builders-i-0168f1d5f24b16251-1/redpanda/redpanda/src/v/redpanda/application.cc:349
main at /var/lib/buildkite-agent/builds/buildkite-amd64-builders-i-0168f1d5f24b16251-1/redpanda/redpanda/src/v/redpanda/main.cc:22