- **status**: review --> fixed
- **assigned_to**: Vu Minh Nguyen --> nobody
- **Comment**:
changeset: 7533:fea799faf484
tag: tip
parent: 7530:8a40a9170d7e
user: Vu Minh Nguyen <[email protected]>
date: Fri Apr 22 13:56:50 2016 +0200
summary: log: add mutex protection for common resource in log agent [#1705]
rev: fea799faf48484872694d5221c7d36c78ae5f64a
changeset: 7532:f80647c1a0af
branch: opensaf-5.0.x
parent: 7529:02d711bb350e
user: Vu Minh Nguyen <[email protected]>
date: Fri Apr 22 13:56:50 2016 +0200
summary: log: add mutex protection for common resource in log agent [#1705]
rev: f80647c1a0afa0b8e1defd28396b929bce210adf
---
** [tickets:#1705] log: miss mutex protection for common resource in log agent**
**Status:** fixed
**Milestone:** 5.0.FC
**Created:** Fri Mar 18, 2016 10:11 AM UTC by Vu Minh Nguyen
**Last Updated:** Wed Mar 23, 2016 07:17 AM UTC
**Owner:** nobody
There is an race condition between two threads accessing to common resource
`lga_cb.client_list`:
1) The client thead which is in context calling to saLogFinalize(), trying
to delete `lga_cb.client_list` resource.
The code flow something looks like:
> saLogFinalize()->lga_destroy()->lga_hdl_list_del(): delete lga_cb.client_list
2) The recovery thread (recovery2_thread) which is referring to above
common resource.
The code flow something looks like:
> recovery2_thread()->recover_one_client(): referring to the resource
So, log client will get the coredump if the thread #1 goes first, then thread
#2 refering to the resource.
---
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