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

Subject: Re: race condition of managed gdd
From: Andrew Johnson <[email protected]>
To: <[email protected]>
Date: Thu, 29 Sep 2016 11:54:52 -0500
I have just committed this change to the Base-3.14 branch, and added a
patch file linked from the 3.14.12 Known Problems page. I may do a
similar patch file for the 3.15.4 release as well, since the bug almost
certainly appears there too.

Thanks,

- Andrew

On 09/29/2016 02:22 AM, Wang Xiaoqiang (PSI) wrote:
> Hi,
> 
> This was originally reported as a crash of PCASpy 0.6.2.
> https://github.com/paulscherrerinstitute/pcaspy/issues/25
> 
> The managed gdds are in a linked list, in class gddApplicationTypeTable. The race condition happens between getDD and freed operations when accessing this list.
> 
> Here is the proposed patch,
> https://github.com/xiaoqiangwang/epics-base/commit/a2132a1f79ce8f026743db4704fc0e9528828bf8
> 
> Best
> Xiaoqiang

-- 
Arguing for surveillance because you have nothing to hide is no
different than making the claim, "I don't care about freedom of
speech because I have nothing to say." -- Edward Snowdon

References:
race condition of managed gdd Wang Xiaoqiang (PSI)

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