[Bug 254333] [tcp] sysctl net.inet.tcp.hostcache.list hangs

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=254333

--- Comment #27 from Richard Scheffenegger <rscheff at freebsd.org> ---
The "hang" is due to a waiting malloc requesting much more memory any machine
will currently have. 

The root cause for that, however, is a race condition (likely to hit busy
servers), fixed with D29522 (will apply cleanly after D29510).

If you are able to patch your systems, that will address this issue.

(The full set of these related hostcache improvements will be backported in
about a week from now to stable/13, stable/12 and stable/11).

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