https://bugs.dpdk.org/show_bug.cgi?id=1290
Bug ID: 1290
Summary: rte_exit will hang if called from worker or service
thread
Product: DPDK
Version: 23.07
Hardware: All
OS: All
Status: UNCONFIRMED
Severity: normal
Priority: Normal
Component: core
Assignee: dev@dpdk.org
Reporter: step...@networkplumber.org
Target Milestone: ---
Calling rte_exit in a thread other than main thread won't work because
the cleanup code is calling rte_eal_cleanup, and inside that it ends
up waiting for all workers. Since the thread you are calling from
is a worker, it ends up waiting for itself.
rte_exit()
rte_eal_cleanup()
rte_service_finalize()
rte_eal_mp_wait_lcore()
void
rte_eal_mp_wait_lcore(void)
{
unsigned lcore_id;
RTE_LCORE_FOREACH_WORKER(lcore_id) {
rte_eal_wait_lcore(lcore_id);
}
}
Either service handling needs to be smarter, the rte_exit() function
check if it is called from main lcore, and/or documentation needs update.
Not a simple fix because in order to safely do the cleanup logic
all threads have to gone to a quiescent state.
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