Date: Sun, 25 Sep 2022 10:05:59 +0000 From: bugzilla-noreply@freebsd.org To: net@FreeBSD.org Subject: [Bug 263445] [tcp] Fatal trap 12: page fault while in kernel mode // supervisor read data, page not present // 13.1-RC3 Message-ID: <bug-263445-7501-yRF2x1G6ma@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-263445-7501@https.bugs.freebsd.org/bugzilla/> References: <bug-263445-7501@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D263445 --- Comment #31 from commit-hook@FreeBSD.org --- A commit in branch stable/13 references this bug: URL: https://cgit.FreeBSD.org/src/commit/?id=3Dc1f9a81e7bfe354dfa4f191d5180426f7= 6bc514b commit c1f9a81e7bfe354dfa4f191d5180426f76bc514b Author: Richard Scheffenegger <rscheff@FreeBSD.org> AuthorDate: 2022-09-22 10:55:25 +0000 Commit: Richard Scheffenegger <rscheff@FreeBSD.org> CommitDate: 2022-09-25 08:56:28 +0000 tcp: fix cwnd restricted SACK retransmission loop While doing the initial SACK retransmission segment while heavily cwnd constrained, tcp_ouput can erroneously send out the entire sendbuffer again. This may happen after an retransmission timeout, which resets snd_nxt to snd_una while the SACK scoreboard is still populated. Reviewed By: tuexen, #transport PR: 264257 PR: 263445 PR: 260393 MFC after: 3 days Sponsored by: NetApp, Inc. Differential Revision: https://reviews.freebsd.org/D36637 (cherry picked from commit a743fc8826fa348b09d219632594c537f8e5690e) sys/netinet/tcp_output.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) --=20 You are receiving this mail because: You are the assignee for the bug.=
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