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<== Date ==> <== Thread ==>

Subject: Re: asyn+streamDevice hangs with synchronousLock:Yes
From: "Brian McAllister" <mcallister@mit.edu>
To: Mark Rivers <rivers@cars.uchicago.edu>
Cc: "tech-talk@aps.anl.gov" <tech-talk@aps.anl.gov>
Date: Mon, 08 Jul 2013 10:47:45 -0400
>>> On 7/8/2013 at 3:26:08 -0000, Mark Rivers wrote:

  > That is interesting.  When it is hung and you type

  > epicsMutexShowAll, 1

  > repeatedly, do you always see the same thing, i.e.

  >> ellCount(&mutexList) 117 ellCount(&freeList) 12
  >> epicsMutexId 0x894b988 source ../../asyn/asynDriver/asynManager.c line 1868
  >> epicsMutexId 0x89a2710 source ../../../src/libCom/osi/epicsMutex.cpp line 222

Yes.  Once it gets stuck, that report doesn't change.

The reference to asynManager.c is in registerPort().  It seems odd that
this function would be called other than during iocInit(), and that it
would get stuck trying to create what should be a new mutex.

- brian

Replies:
RE: asyn+streamDevice hangs with synchronousLock:Yes Mark Rivers
References:
RE: asyn+streamDevice hangs with synchronousLock:Yes Mark Rivers

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