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* [Bug 1073] The `rte_mempool_ops_table` is process unsafe
@ 2022-09-01 11:30 bugzilla
  0 siblings, 0 replies; only message in thread
From: bugzilla @ 2022-09-01 11:30 UTC (permalink / raw)
  To: dev

https://bugs.dpdk.org/show_bug.cgi?id=1073

            Bug ID: 1073
           Summary: The `rte_mempool_ops_table` is process unsafe
           Product: DPDK
           Version: 19.11
          Hardware: All
                OS: All
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: core
          Assignee: dev@dpdk.org
          Reporter: wdy_s@foxmail.com
  Target Milestone: ---

Created attachment 219
  --> https://bugs.dpdk.org/attachment.cgi?id=219&action=edit
GDB print value corresponding to the table(rte_mempool_ops_table)(myapp and
dpdk-pdump)

The `rte_mempool_ops_table` is process unsafe!

When a process is started, the table (rte_mempool_ops_table) will be
initialized with a macro (rte_mempool.h:MEMPOOL_REGISTER_OPS). However,
different process initialization will cause inconsistent index values
(ops_index) (such as myapp and dpdk pdump). After the initialization memory
pool is created in the dpdk pdump process, mp->ops_index = 0, mp->ops_index=2
in myapp。 Different processes using the shared memory pool will be coredump

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2022-09-01 11:30 [Bug 1073] The `rte_mempool_ops_table` is process unsafe bugzilla

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