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| <== Date ==> | <== Thread ==> |
|---|
| Subject: | Re: asyn+streamDevice hangs with synchronousLock:Yes |
| From: | Dirk Zimoch <[email protected]> |
| To: | Mark Rivers <[email protected]> |
| Cc: | "[email protected]" <[email protected]> |
| Date: | Wed, 03 Jul 2013 13:49:30 +0200 |
On 02.07.2013 20:27, Mark Rivers wrote:
When it is hung please do epicsMutexShowAll 1 I think you have probably run into a deadlock, which can happen when multiple mutexes are taken/released in the wrong order. If you simplfy your problem to a single record does the problem go away? I am not an expert on using I/O Intr scanned records with StreamDevice, particularly multiple records on the same port. Dirk may be able to help with this. Mark
I am not an expert of the internals of asyn. What does "synchronousLock:Yes" mean?
Dirk
________________________________________ From: [email protected] [[email protected]] on behalf of Brian McAllister [[email protected]] Sent: Tuesday, July 02, 2013 1:23 PM To: Mark Rivers Cc: [email protected] Subject: Re: asyn+streamDevice hangs with synchronousLock:Yes What does it mean if synchronousLock is permanently "Yes" ? I see it's a mutex and that it's used in many places. Is there any way to find out where it is being locked/not unlocked ? - brian