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From "Jin (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (PROTON-297) 100% CPU usage on ARM in pn_messenger_recv()
Date Thu, 18 Apr 2013 14:33:17 GMT

     [ https://issues.apache.org/jira/browse/PROTON-297?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jin updated PROTON-297:
-----------------------

    Description: 
Deep down pn_messenger_recv() issues a poll() with a specific timeout. On ARM9 the poll timeout
is reset to 0 because d->wakeup is always older than now. The reason is, that the time
stamp is passed around earlier and one of the functions has a time_t instead of a pn_timestamp_t
in the declaration.

Patch that fixes the problem is attached.

  was:Deep down pn_messenger_recv() issues a poll() with a specific timeout. On ARM9 the poll
timeout is reset to 0 because d->wakeup is always older than now. The reason is, that the
time stamp is passed around earlier and one of the functions has a time_t instead of a pn_timestamp_t
in the declaration.

    
> 100% CPU usage on ARM in pn_messenger_recv()
> --------------------------------------------
>
>                 Key: PROTON-297
>                 URL: https://issues.apache.org/jira/browse/PROTON-297
>             Project: Qpid Proton
>          Issue Type: Bug
>          Components: proton-c
>    Affects Versions: 0.4
>         Environment: ARM9, eglibc linux
>            Reporter: Jin
>         Attachments: proton_poll_busy_fix_arm.patch
>
>
> Deep down pn_messenger_recv() issues a poll() with a specific timeout. On ARM9 the poll
timeout is reset to 0 because d->wakeup is always older than now. The reason is, that the
time stamp is passed around earlier and one of the functions has a time_t instead of a pn_timestamp_t
in the declaration.
> Patch that fixes the problem is attached.

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