Bug 742

Summary:	intermittent func_reentrancy_autotest failures
Product:	DPDK	Reporter:	Aaron (aconole)
Component:	core	Assignee:	dev
Status:	UNCONFIRMED ---
Severity:	normal
Priority:	Normal
Version:	unspecified
Target Milestone:	---
Hardware:	All
OS:	All

Description Aaron 2021-06-17 15:54:20 CEST

In the UNH IOL we see intermittent failures from the func_reentrancy_autotest
which happen regardless of platform.

Sometimes the report looks like:

(from https://lab.dpdk.org/results/dashboard/patchsets/17321/)

27/93 DPDK:fast-tests / func_reentrancy_autotest       FAIL           3.08s (exit status 255 or signal 127 SIGinvalid)

--- command ---
07:03:58 DPDK_TEST='func_reentrancy_autotest' /home-local/jenkins-local/jenkins-agent/workspace/Arm-gigabyte-Unit-Test-DPDK/dpdk/build/app/test/dpdk-test -l 0-63 --file-prefix=func_reentrancy_autotest
--- stdout ---
RTE>>func_reentrancy_autotest
Too many lcores, some cores will be disabled
Func-ReEnt CASE 0: eal init once PASS
Func-ReEnt CASE 1: ring create/lookup PASS
Func-ReEnt CASE 2: mempool create/lookup FAIL
Test Failed
RTE>>

Sometimes it looks like:

--- command ---
12:35:49 DPDK_TEST='func_reentrancy_autotest' /home-local/jenkins-local/jenkins-agent/workspace/Generic-Unit-Test-DPDK/dpdk/build/app/test/dpdk-test -l 0-15 --file-prefix=func_reentrancy_autotest
--- stdout ---
RTE>>func_reentrancy_autotest
--- stderr ---
EAL: Detected 16 lcore(s)
EAL: Detected 2 NUMA nodes
EAL: Detected static linkage of DPDK
EAL: Multi-process socket /var/run/dpdk/func_reentrancy_autotest/mp_socket
EAL: Selected IOVA mode 'PA'
EAL: No available 1048576 kB hugepages reported
EAL: VFIO support initialized
EAL:   Invalid NUMA socket, default to 0
APP: HPET is not enabled, using TSC as default timer
EAL: FATAL: already called initialization.
EAL: FATAL: already called initialization.
EAL: FATAL: already called initialization.
EAL: FATAL: already called initialization.
EAL: FATAL: already called initialization.
EAL: FATAL: already called initialization.
EAL: FATAL: already called initialization.
EAL: FATAL: already called initialization.
EAL: FATAL: already called initialization.
EAL: FATAL: already called initialization.
EAL: FATAL: already called initialization.
EAL: already called initialization.
EAL: FATAL: already called initialization.
EAL: FATAL: already called initialization.
EAL: already called initialization.
EAL: FATAL: already called initialization.
EAL: FATAL: already called initialization.
EAL: already called initialization.
EAL: already called initialization.
EAL: already called initialization.
EAL: already called initialization.
EAL: already called initialization.
EAL: already called initialization.
EAL: FATAL: already called initialization.
EAL: already called initialization.
EAL: already called initialization.
EAL: already called initialization.
EAL: already called initialization.
EAL: already called initialization.
EAL: already called initialization.
EAL: already called initialization.
EAL: already called initialization.
RING: Cannot reserve memory
RING: Cannot reserve memory
RING: Cannot reserve memory
RING: Cannot reserve memory
RING: Cannot reserve memory
RING: Cannot reserve memory
RING: Cannot reserve memory
RING: Cannot reserve memory
RING: Cannot reserve memory
RING: Cannot reserve memory
RING: Cannot reserve memory
RING: Cannot reserve memory
RING: Cannot reserve memory
RING: Cannot reserve memory
RING: Cannot reserve memory
RING: Cannot reserve memory
RING: Cannot reserve memory
RING: Cannot reserve memory
RING: Cannot reserve memory
RING: Cannot reserve memory
RING: Cannot reserve memory
RING: Cannot reserve memory
RING: Cannot reserve memory
RING: Cannot reserve memory
RING: Cannot reserve memory
RING: Cannot reserve memory
RING: Cannot reserve memory
RING: Cannot reserve memory
RING: Cannot reserve memory
RING: Cannot reserve memory
RING: Cannot reserve memory
RING: Cannot reserve memory
RING: Cannot reserve memory
RING: Cannot reserve memory
RING: Cannot reserve memory
RING: Cannot reserve memory
RING: Cannot reserve memory
RING: Cannot reserve memory
RING: Cannot reserve memory
RING: Cannot reserve memory
RING: Cannot reserve memory
RING: Cannot reserve memory
RING: Cannot reserve memory
RING: Cannot reserve memory
RING: Cannot reserve memory
RING: Cannot reserve memory
RING: Cannot reserve memory
RING: Cannot reserve memory
RING: Cannot reserve memory
RING: Cannot reserve memory
RING: Cannot reserve memory
RING: Cannot reserve memory
RING: Cannot reserve memory
RING: Cannot reserve memory
RING: Cannot reserve memory
RING: Cannot reserve memory
RING: Cannot reserve memory
RING: Cannot reserve memory
RING: Cannot reserve memory
RING: Cannot reserve memory
RING: Cannot reserve memory
RING: Cannot reserve memory
RING: Cannot reserve memory
-------

Probably there is some issue allocating memory but not enough information is being captured.