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From: bugzilla@dpdk.org
To: dev@dpdk.org
Subject: [Bug 1073] The `rte_mempool_ops_table` is process unsafe
Date: Thu, 01 Sep 2022 11:30:27 +0000
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https://bugs.dpdk.org/show_bug.cgi?id=3D1073

            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=3D219&action=3Dedit
GDB print value corresponding to the table=EF=BC=88rte_mempool_ops_table=EF=
=BC=89=EF=BC=88myapp and
dpdk-pdump=EF=BC=89

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 =3D 0, mp->ops_ind=
ex=3D2
in myapp=E3=80=82 Different processes using the shared memory pool will be =
coredump

--=20
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