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[Bug server/19855] readline abort when debugging with rr


https://sourceware.org/bugzilla/show_bug.cgi?id=19855

--- Comment #16 from Pedro Alves <palves at redhat dot com> ---
Since it's a maintenance command, users should not rely on it, and it may
disappear at any moment without advance notice.

It's mainly a convenience for maintainers to try to reproduce issues that would
normally only happen on non-GNU/Linux hosts.

It changes an internal implementation detail, and other than "maint
target-async on" enabling support for more features, like background execution
commands and non-stop mode, it should not have user-visible side effects.

Once all hosts support "maint set target-async on", the non-target-async code
paths in gdb will be removed along with the command.  That may take a long
while though, so I'm not holding my breath...

In sum, if you found a problem that led to the use of "maint set target-async
off", please let us know about it, if you haven't already, so we can try to fix
the problem properly.

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