I also note that the "forever" is in fact writing to a TVar. I'd be curious
as to whether it's retrying for some reason, possibly related to the "lost"
TVars confusing the STM machinery. I seem to recall it has some
infelicities currently; and I have no idea how (or if) STM retries interact
with thread yielding.
On Thu, Nov 29, 2018 at 2:25 PM Bryan Richter
On Thu, Nov 29, 2018, 20:51 Johannes Waldmann < johannes.waldmann@htwk-leipzig.de wrote:
On 11/29/18 7:48 PM, Brandon Allbery wrote:
main thread exiting will kill the entire process,
The main thread does "forever $ something".
The process does not exit (I am not getting the console prompt). I observe that the process either prints and then hangs, or it hangs immediately.
Printing to the console still isn't a great test to see if something has "run", because of buffering that seems to behave unintuitively in these situations. Maybe try flushing stdout within the forked thread, to ensure the runtime is doing what you think it's doing? _______________________________________________ Haskell-Cafe mailing list To (un)subscribe, modify options or view archives go to: http://mail.haskell.org/cgi-bin/mailman/listinfo/haskell-cafe Only members subscribed via the mailman list are allowed to post.
-- brandon s allbery kf8nh allbery.b@gmail.com