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"Minor (maybe) technical issue: mashed-up threads" Topic


14 Posts

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361 hits since 21 Feb 2021
©1994-2021 Bill Armintrout
Comments or corrections?

Pocho Azul21 Feb 2021 10:14 a.m. PST

I have noticed that sometimes unrelated threads from two different boards seem to get mashed together.

For example, a recent thread titled "Best brush-on primer?" from the Painting board, is interleaved with an unrelated thread from the Modern Battle Reports board titled "Missile Threat AAR."

Both threads appear listed as separate in threads in the MBR board, but only the primer thread appears in the Paint board. Opening the combined thread has dual "Back to" links leading to both boards.

I have noticed similar mashed up threads before, but this is the first time I realized what was going on, and looked into it. I can post screens, if this would be helpful.

Just thought you ought to know.

ZULUPAUL Supporting Member of TMP21 Feb 2021 11:04 a.m. PST

Yup known as "The Bug" an ongoing & long standing problem.🦟

MajorB21 Feb 2021 11:11 a.m. PST

Caused by a race condition in the code when two threads are updated at the same time.

Pocho Azul21 Feb 2021 11:40 a.m. PST

OK, nevermind then.

Schogun21 Feb 2021 1:49 p.m. PST

To make matters worse, my "Best Brush-On Primer?" post doesn't show up on my Front Page. I have to search for it.

This happens a lot when I post a new topic.

Waco Joe21 Feb 2021 2:30 p.m. PST

Embrace the Bug. The Bug is your friend.

d88mm1940 Supporting Member of TMP21 Feb 2021 5:19 p.m. PST

I thought that it was caused by Russians or Democrats snooping around…

Personal logo Extra Crispy Sponsoring Member of TMP21 Feb 2021 8:31 p.m. PST

It's the Jewish space lasers…

Personal logo Editor in Chief Bill The Editor of TMP Fezian21 Feb 2021 9:40 p.m. PST

Caused by a race condition in the code when two threads are updated at the same time.

Nope, try again. grin

Pocho Azul – if you hit the Complaint button on such topics, I can usually fix them. Sometimes, I can only save one of the topics. Depends on the nature of the mash-up.

pzivh43 Supporting Member of TMP22 Feb 2021 7:53 a.m. PST

It's a feature, not a Bug. The cognitive dissonance helps shake up your synapses and keeps the brain from getting all clogged up!

Personal logo etotheipi Sponsoring Member of TMP22 Feb 2021 8:23 a.m. PST

Caused by a race condition in the code when two threads are updated at the same time.

Nope, try again. grin

It appears that the thread creation mechanism does not have atomic control over the allocation of new thread indices. As a result, when two threads get to the part of thread creation where they request an index, they get the same one.

Close enough? ;)

Personal logo Editor in Chief Bill The Editor of TMP Fezian22 Feb 2021 1:58 p.m. PST

Close enough? ;)

Nope. It is not an "at the same moment" bug.

Pocho Azul22 Feb 2021 8:10 p.m. PST

if you hit the Complaint button on such topics, I can usually fix them. Sometimes, I can only save one of the topics. Depends on the nature of the mash-up.

OK, that's what I will do next time I see one (assuming I do). Thanks.

Personal logo etotheipi Sponsoring Member of TMP23 Feb 2021 2:06 p.m. PST

Nope. It is not an "at the same moment" bug.

Lack of atomic control doesn't have to be "simultaneous" or even close in time.

Sorry - only verified members can post on the forums.