[jira] [Updated] (DISPATCH-2203) Alloc_pool_item_t sequence number should be atomic

2022-01-27 Thread Jira 


 [ 
https://issues.apache.org/jira/browse/DISPATCH-2203?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Jiri Daněk updated DISPATCH-2203:
-
Affects Version/s: 1.18.0

> Alloc_pool_item_t sequence number should be atomic
> --
>
> Key: DISPATCH-2203
> URL: https://issues.apache.org/jira/browse/DISPATCH-2203
> Project: Qpid Dispatch
>  Issue Type: Test
>  Components: Router Node
>Affects Versions: 1.16.1, 1.18.0
>Reporter: Charles E. Rolke
>Priority: Major
>  Labels: race-condition
>
> Alloc pool uses a sequence number for safe pointer dereferencing. 
> {code:java}
> Definition
>   Line 55: uintmax_t sequence;  // uintmax_t ensures proper alignment of 
> following data
> In qd_alloc:
>   Line 406: item->sequence = 0;
> in qd_dealloc:
>   Line 477: item->sequence++;
> In qd_alloc_sequence:
>   Line 525: reuturn item->sequence;
> {code}
> It is reasonably certain that multiple threads will be referencing the same 
> item at nearly the same time. The code as shown gets flagged by tsan.



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[jira] [Updated] (DISPATCH-2203) Alloc_pool_item_t sequence number should be atomic

2022-01-25 Thread Ken Giusti (Jira) 


 [ 
https://issues.apache.org/jira/browse/DISPATCH-2203?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Ken Giusti updated DISPATCH-2203:
-
Labels: race-condition  (was: )

> Alloc_pool_item_t sequence number should be atomic
> --
>
> Key: DISPATCH-2203
> URL: https://issues.apache.org/jira/browse/DISPATCH-2203
> Project: Qpid Dispatch
>  Issue Type: Test
>  Components: Router Node
>Affects Versions: 1.16.1
>Reporter: Charles E. Rolke
>Priority: Major
>  Labels: race-condition
>
> Alloc pool uses a sequence number for safe pointer dereferencing. 
> {code:java}
> Definition
>   Line 55: uintmax_t sequence;  // uintmax_t ensures proper alignment of 
> following data
> In qd_alloc:
>   Line 406: item->sequence = 0;
> in qd_dealloc:
>   Line 477: item->sequence++;
> In qd_alloc_sequence:
>   Line 525: reuturn item->sequence;
> {code}
> It is reasonably certain that multiple threads will be referencing the same 
> item at nearly the same time. The code as shown gets flagged by tsan.



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