CI Failure (oversized allocation) in PartitionBalancerScaleTest.test_node_operations_at_scale

[vbotbuildovich]

https://buildkite.com/redpanda/vtools/builds/14990

Module: rptest.scale_tests.partition_balancer_scale_test
Class: PartitionBalancerScaleTest
Method: test_node_operations_at_scale
Arguments: {
    "type": "many_partitions"
}

test_id:    PartitionBalancerScaleTest.test_node_operations_at_scale
status:     FAIL
run time:   636.064 seconds

<BadLogLines nodes=ip-172-31-12-46(4) example="WARN  2024-06-24 00:38:18,671 [shard 1:main] seastar_memory - oversized allocation: 458752 bytes. This is non-fatal, but could lead to latency and/or fragmentation issues. Please report: at 0x85b04cb 0x829c82b 0x82a799f 0x8447f03 0x844e02f 0x8445ccf 0x83d9a13 0x8368497 0x83b0523 0x82ee0df /opt/redpanda/lib/libc.so.6+0x96797 /opt/redpanda/lib/libc.so.6+0x101b4b">
Traceback (most recent call last):
  File "/opt/.ducktape-venv/lib/python3.10/site-packages/ducktape/tests/runner_client.py", line 184, in _do_run
    data = self.run_test()
  File "/opt/.ducktape-venv/lib/python3.10/site-packages/ducktape/tests/runner_client.py", line 276, in run_test
    return self.test_context.function(self.test)
  File "/opt/.ducktape-venv/lib/python3.10/site-packages/ducktape/mark/_mark.py", line 535, in wrapper
    return functools.partial(f, *args, **kwargs)(*w_args, **w_kwargs)
  File "/home/ubuntu/redpanda/tests/rptest/services/cluster.py", line 190, in wrapped
    redpanda.raise_on_bad_logs(
  File "/home/ubuntu/redpanda/tests/rptest/services/redpanda.py", line 1570, in raise_on_bad_logs
    lsearcher.search_logs(_searchable_nodes)
  File "/home/ubuntu/redpanda/tests/rptest/services/utils.py", line 197, in search_logs
    raise BadLogLines(bad_loglines)
rptest.services.utils.BadLogLines: <BadLogLines nodes=ip-172-31-12-46(4) example="WARN  2024-06-24 00:38:18,671 [shard 1:main] seastar_memory - oversized allocation: 458752 bytes. This is non-fatal, but could lead to latency and/or fragmentation issues. Please report: at 0x85b04cb 0x829c82b 0x82a799f 0x8447f03 0x844e02f 0x8445ccf 0x83d9a13 0x8368497 0x83b0523 0x82ee0df /opt/redpanda/lib/libc.so.6+0x96797 /opt/redpanda/lib/libc.so.6+0x101b4b">

JIRA Link: CORE-4291

[michael-redpanda]

Note: Need to grab build and decode stracktrace.