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Differential D43855

tcp: partially undo D43792
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Authored by rscheff on Feb 12 2024, 8:09 PM.
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• grahamperrin
imp
melifaro

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tuexen
rrs
glebius
cc
cy
Group Reviewers
transport
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rG57e27ff07aff: tcp: partially undo D43792
Summary

At the destruction of the tcpcb, no timers are supposed to
be running. However, it turns out that stopping them in the
close() / shutdown() call does not have the desired effect
under all circumstances.

This partially reverts 62d47d73b7eb to reduce the nuisance
caused.

Reported-by: syzbot+9a9aa434a14a2b35c3ba@syzkaller.appspotmail.com
Reported-by: syzbot+e82856782410e895bae7@syzkaller.appspotmail.com
PR: 277009

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rG FreeBSD src repository
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Event Timeline

rscheff created this revision.Feb 12 2024, 8:09 PM
Herald added a reviewer: transport. · View Herald TranscriptFeb 12 2024, 8:09 PM
Herald added subscribers: melifaro, imp. · View Herald Transcript
rscheff requested review of this revision.Feb 12 2024, 8:09 PM
Harbormaster completed remote builds in B55971: Diff 134224.Feb 12 2024, 8:10 PM
rscheff mentioned this in D43825: tcp: stop all timers in tcp_usr_detach().Feb 12 2024, 8:16 PM
rscheff edited the summary of this revision. (Show Details)
glebius accepted this revision.Feb 12 2024, 8:33 PM

I'm fine with the change if we all agree it is a temporary measure.

tuexen accepted this revision.Feb 12 2024, 9:36 PM
This revision is now accepted and ready to land.Feb 12 2024, 9:36 PM
Closed by commit rG57e27ff07aff: tcp: partially undo D43792 (authored by rscheff). · Explain WhyFeb 12 2024, 9:41 PM
This revision was automatically updated to reflect the committed changes.
rscheff added a commit: rG57e27ff07aff: tcp: partially undo D43792.
• grahamperrin added a subscriber: • grahamperrin.Feb 15 2024, 11:14 PM
glebius added a reverting change: rGe34ea0196f44: tcp: clear all TCP timers in tcp_timer_stop() when in callout.Mar 18 2024, 8:57 PM

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sys/
netinet/
3 lines

Diff 134230

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sys/netinet/tcp_subr.c

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