The mtcAgent process sometimes segfaults while trying to fetch
the bmc password from a failing barbican process.
With that issue fixed the mtcAgent sends the bmc access
credentials to the hardware monitor (hwmond) process which
then segfaults for a reason similar
In cases where the process does not segfault but also does not
get a bmc password, the mtcAgent will flood its log file.
This update
1. Prevents the segfault case by properly managing acquired
json-c object releases. There was one in the mtcAgent and
another in the hardware monitor (hwmond).
The json_object_put object release api should only be called
against objects that were created with very specific apis.
See new comments in the code.
2. Avoids log flooding error case by performing a password size
check rather than assume the password is valid following the
secret payload receive stage.
3. Simplifies the secret fsm and error and retry handling.
4. Deletes useless creation and release of a few unused json
objects in the common jsonUtil and hwmonJson modules.
Note: This update temporarily disables sensor and sensorgroup
suppression support for the debian hardware monitor while
a suppression type fix in sysinv is being investigated.
Test Plan:
PASS: Verify success path bmc password secret fetch
PASS: Verify secret reference get error handling
PASS: Verify secret password read error handling
PASS: Verify 24 hr provision/deprov success path soak
PASS: Verify 24 hr provision/deprov error path path soak
PASS: Verify no memory leak over success and failure path soaking
PASS: Verify failure handling stress soak ; reduced retry delay
PASS: Verify blocking secret fetch success and error handling
PASS: Verify non-blocking secret fetch success and error handling
PASS: Verify secret fetch is set non-blocking
PASS: Verify success and failure path logging
PASS: Verify all of jsonUtil module manages object release properly
PASS: Verify hardware monitor sensor model creation, monitoring,
alarming and relearning. This test requires suppress
disable in order to create sensor groups in debian.
PASS: Verify both ipmi and redfish and switch between them with
just bm_type change.
PASS: Verify all above tests in CentOS
PASS: Verify over 4000 provision/deprovision cycles across both
failure and success path handling with no process
failures
Closes-Bug: 1975520
Signed-off-by: Eric MacDonald <eric.macdonald@windriver.com>
Change-Id: Ibbfdaa1de662290f641d845d3261457904b218ff
aaf9d08028