From nobody Wed Jul 20 18:45:01 2022 X-Original-To: net@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4Lp4Pr2DJ2z4Wgtw for ; Wed, 20 Jul 2022 18:45:04 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4Lp4Pr15lgz3J4t for ; Wed, 20 Jul 2022 18:45:04 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2610:1c1:1:606c::50:1d]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 4Lp4Pr09njz17BK for ; Wed, 20 Jul 2022 18:45:04 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.5]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id 26KIj39h052179 for ; Wed, 20 Jul 2022 18:45:03 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 26KIj3w6052178 for net@FreeBSD.org; Wed, 20 Jul 2022 18:45:03 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: net@FreeBSD.org Subject: [Bug 264257] [tcp] Panic: Fatal trap 12: page fault while in kernel mode (if_io_tqg_4) - m_copydata ... at /usr/src/sys/kern/uipc_mbuf.c:659 Date: Wed, 20 Jul 2022 18:45:01 +0000 X-Bugzilla-Reason: CC AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 13.1-RELEASE X-Bugzilla-Keywords: crash, needs-qa X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: rscheff@freebsd.org X-Bugzilla-Status: Open X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: net@FreeBSD.org X-Bugzilla-Flags: maintainer-feedback? maintainer-feedback? maintainer-feedback- maintainer-feedback? mfc-stable13? X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@freebsd.org MIME-Version: 1.0 ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1658342704; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=fLY+CeRTEjK0QXC9B5Wdin5tU+rmTif/K1YznvlmcGs=; b=JmHy3jb4RCX3Q6Zr8KAoT+H0AG4CvHGQUM3hoUewxVsML1ugypquzH3+zh2pqCFbaLSc6t u4Dez3JBDA2uBAqFjBlJ78QZCVSVJK+0N+PRgUI0xAKJ4woasm0VyFlZ6MJr6zHEujoRDT aoV6cfdtvbi3q3isgXPFG6po0uxDHa9weTUvIsGuw59eUXJ3C3SRqpfrEcUcr148JGTrhs 8GCKfSIZ6PLENZR2k/6Ho4Zu3G1wfBPRBsiFwzUPSuxX2gBNGjXGCH2Q2uVjfvOtk8oDV9 hgk1BzUq2W/i1p+zZbaLmZY0ZJ8G7OKO1j94ze8ftfg2eZ0fBi6cNx+ElRe0CA== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1658342704; a=rsa-sha256; cv=none; b=SWar2vRGQKV94c+Mql2UJTeyCO6usirdYlk4g2UM2BtXeHrYYQh3bqray0kz3Eqqr8az8U hxVkobYFIvrmJN+1SRU7NMmg4MYnJbePKQvhWOdzZtChUWrzm7hh+os//d1gZeSNOB0R8z i1/fZDCyLiUjxLPsWeQcaOd5o2/7t9MUzRJhFGgkiSs+9Kn/l811rdqHBYvNVt6hdMPHJN tY9C0YG30raon9w8tHkmddA5dyvaOvzKO/nGfeNviuRdHHAQ55kzicI7THBD09PtMlu5W/ bTRTmnWxHBD6EEUySO7fpgT9gBkBKShe4tGqpmaUR+LyFEQslXJJLw/zNNNqZA== ARC-Authentication-Results: i=1; mx1.freebsd.org; none X-ThisMailContainsUnwantedMimeParts: N https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D264257 --- Comment #85 from Richard Scheffenegger --- Hi Chad, Thank you very much for your effort. Are you sure about this panic - in the backtrace, it looks like an issue happend in=20 #6 0xffffffff80d55ec7 at pfil_run_hooks+0x97 #7 0xffffffff8239af37 at bridge_pfil+0x497 (bridging code, not tcp). In the few instances we have seen in more detail, it looked like TLS handsh= ake was being performed when - for one reason or another - there was no response from the client for an extended period of time (probably 1-2 min), before seeing ACKs (and SACKs) again. The IP stats in your case seem pretty clean - we suspected that a missing adjustment in a local error handling path may have something to do with thi= s, but after doing some error injection prior and after addressing this, the behavior seems sufficiently different that I'm not convinced that is the culprit either. --=20 You are receiving this mail because: You are on the CC list for the bug. You are the assignee for the bug.=