From owner-freebsd-net@freebsd.org Sun Jul 26 15:36:04 2020 Return-Path: Delivered-To: freebsd-net@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id D4EB13632BF for ; Sun, 26 Jul 2020 15:36:04 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mailman.nyi.freebsd.org (mailman.nyi.freebsd.org [IPv6:2610:1c1:1:606c::50:13]) by mx1.freebsd.org (Postfix) with ESMTP id 4BF6Tw5M32z3SdL for ; Sun, 26 Jul 2020 15:36:04 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.nyi.freebsd.org (Postfix) id B5DCC363428; Sun, 26 Jul 2020 15:36:04 +0000 (UTC) Delivered-To: net@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id B5A10363706 for ; Sun, 26 Jul 2020 15:36:04 +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 "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4BF6Tw4TLXz3SdK for ; Sun, 26 Jul 2020 15:36:04 +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 7CC6DF11A for ; Sun, 26 Jul 2020 15:36:04 +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 06QFa44P028511 for ; Sun, 26 Jul 2020 15:36:04 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 06QFa4hp028510 for net@FreeBSD.org; Sun, 26 Jul 2020 15:36:04 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 248046] if_bridge(4): Panic when creating an interface: malloc(M_WAITOK) in epoch context Date: Sun, 26 Jul 2020 15:36:04 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 12.1-STABLE X-Bugzilla-Keywords: crash, needs-patch, needs-qa X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: dmilith@me.com X-Bugzilla-Status: Closed X-Bugzilla-Resolution: FIXED X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: kp@freebsd.org X-Bugzilla-Flags: mfc-stable12+ 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 MIME-Version: 1.0 X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.33 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 26 Jul 2020 15:36:04 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D248046 --- Comment #17 from dmilith --- (In reply to Kristof Provost from comment #16) I did rebuild again, full command that caused KP: ifconfig bridge0 create; ifconfig tap0 create; ifconfig tap1 create; ifconf= ig bridge0 addm tap0 up; ifconfig bridge0 addm tap1 up; ifconfig bridge0 addm = em0 up NOTE: em0 is my main network card, virtualized under vmware fusion 7.1.3 pro It's production build, so dmesg log is limited: [44] KDB: stack backtrace: [44] #0 0xffffffff8098a9d5 at kdb_backtrace+0x65 [44] #1 0xffffffff80947790 at vpanic+0x180 [44] #2 0xffffffff809475a3 at panic+0x43 [44] #3 0xffffffff80951fdd at _sleep+0x3dd [44] #4 0xffffffff80952331 at pause_sbt+0xf1 [44] #5 0xffffffff804fa177 at e1000_reset_hw_82540+0x177 [44] #6 0xffffffff804f114b at em_if_stop+0x1b [44] #7 0xffffffff80a43a71 at iflib_stop+0xc1 [44] #8 0xffffffff80a50d6c at iflib_if_ioctl+0x39c [44] #9 0xffffffff82f2c5c5 at bridge_mutecaps+0x145 [44] #10 0xffffffff82f28467 at bridge_ioctl_add+0x467 [44] #11 0xffffffff82f2a37b at bridge_ioctl+0x32b [44] #12 0xffffffff80a35ce1 at ifioctl+0x701 [44] #13 0xffffffff809a9895 at kern_ioctl+0x2d5 [44] #14 0xffffffff809a9517 at sys_ioctl+0x127 [44] #15 0xffffffff80d71b84 at amd64_syscall+0x2a4 [44] #16 0xffffffff80d4b1ae at fast_syscall_common+0xf8 [44] Uptime: 44s --=20 You are receiving this mail because: You are on the CC list for the bug.=