[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 #23 from commit-hook at FreeBSD.org ---
A commit in branch main references this bug:

URL:
https://cgit.FreeBSD.org/src/commit/?id=869880463cc2ce64e2e6599eaec880a981f3ced6

commit 869880463cc2ce64e2e6599eaec880a981f3ced6
Author:     Richard Scheffenegger <rscheff at FreeBSD.org>
AuthorDate: 2021-03-31 17:24:01 +0000
Commit:     Richard Scheffenegger <rscheff at FreeBSD.org>
CommitDate: 2021-03-31 17:24:21 +0000

    tcp: drain tcp_hostcache_list in between per-bucket locks

    Explicitly drain the sbuf after completing each hash bucket
    to minimize the work performed while holding the hash
    bucket lock.

    PR:             254333
    MFC after:      2 weeks
    Reviewed By:    tuexen, jhb, #transport
    Sponsored by:   NetApp, Inc.
    Differential Revision: https://reviews.freebsd.org/D29483

 sys/netinet/tcp_hostcache.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

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