[DPDK/cryptodev Bug 1966] crypto-perf application segmentation faults where it previously didn't

[bugzilla@dpdk.org]

http://bugs.dpdk.org/show_bug.cgi?id=1966

            Bug ID: 1966
           Summary: crypto-perf application segmentation faults where it
                    previously didn't
           Product: DPDK
           Version: 26.07
          Hardware: All
                OS: All
            Status: UNCONFIRMED
          Severity: major
          Priority: Normal
         Component: cryptodev
          Assignee: dev@dpdk.org
          Reporter: abailey@iol.unh.edu
  Target Milestone: ---

Running the dpdk-crypto-perf application with the following args creates a
segmentation fault. I am testing on an Intel QAT 8970 on an aarch64 system with
a single virtual function bound to vfio-pci. To the best of my knowledge, this
was not seen in testing prior to the merge of 26.07-rc2.

sudo ./dpdk-test-crypto-perf 
-l 1-2 
-n 4 
--file-prefix=dpdk_1_20260708200005 
-a 0000:03:01.0 
-- 
--aead-aad-sz=16 
--aead-algo=aes-gcm 
--aead-iv-sz=12 
--aead-key-sz=16 
--aead-op=encrypt 
--buffer-sz=64,512,2048 
--devtype=crypto_qat 
--digest-sz=16 
--optype=aead 
--ptest=throughput 
--silent 
--total-ops=10000000'

' returned a non-zero exit code: 139
16:00:57  Stderr: EAL: Detected CPU lcores: 160
16:00:57  EAL: Detected NUMA nodes: 2
16:00:57  EAL: Detected static linkage of DPDK
16:00:57  EAL: Multi-process socket
/var/run/dpdk/dpdk_1_20260708200005/mp_socket
16:00:57  EAL: Selected IOVA mode 'PA'
16:00:57  EAL: VFIO support initialized
16:00:57  EAL: Using IOMMU type 1 (Type 1)
16:00:57  CRYPTODEV: Creating cryptodev 0000:03:01.0_qat_asym
16:00:57  CRYPTODEV: Initialisation parameters - name:
0000:03:01.0_qat_asym,socket id: 0, max queue pairs: 0
16:00:57  CRYPTODEV: Creating cryptodev 0000:03:01.0_qat_sym
16:00:57  CRYPTODEV: Initialisation parameters - name:
0000:03:01.0_qat_sym,socket id: 0, max queue pairs: 0
16:00:57  Segmentation fault (core dumped)

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