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Re: toolchain/57075 (nbctfmerge looped)

The following reply was made to PR toolchain/57075; it has been noted by GNATS.

From: Luke Mewburn <>
Cc:,,, Andreas Gustafsson <>
Subject: Re: toolchain/57075 (nbctfmerge looped)
Date: Fri, 26 May 2023 01:39:15 +1000

 On 23-05-26 01:35, Luke Mewburn wrote:
   | On 23-05-25 15:10, Andreas Gustafsson wrote:
   |   | wrote:
   |   |  > This may have been fixed by:
   |   |  >
   |   |  >
   |   |  > Have you seen this recently?
   |   |  
   |   |  I don't recall seeing it happen again.  But even if the bug was fixed
   |   |  by the referenced commit, it could still happen on the TNF testbeds
   |   |  since it affects the nbctfmerge tool, which is linked with the host
   |   |  libpthread and therefore may still have the bug even if the system
   |   |  being built doesn't.
   | Regarding ctfmerge: given the previous lack of error handling/reporting
   | in the concurrency / thread code in ctfmerge, and the bugs I found and
   | fixed on at least one host (macOS) that were previously not obvious
   | because of lack of error handling, I don't know if we get much value
   | keeping open older ctfmerge tickets that relate to thread issues.
 To clarify, I meant:
   "older ctfmerge tickets that relate to *intermittent faults with* thread issues"
 Intermittent bugs are the worst! Especially in code not using the thread
 APIs as well as they should.

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