From owner-freebsd-net@freebsd.org Fri Jul 24 15:47:10 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 60BFB369DF7 for ; Fri, 24 Jul 2020 15:47:10 +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 4BCtqf21Dxz3S8V for ; Fri, 24 Jul 2020 15:47:10 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.nyi.freebsd.org (Postfix) id 432F9369A63; Fri, 24 Jul 2020 15:47:10 +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 41E4C369A62 for ; Fri, 24 Jul 2020 15:47:10 +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 4BCtqf0tKmz3RsC for ; Fri, 24 Jul 2020 15:47:10 +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 F1D54CCA6 for ; Fri, 24 Jul 2020 15:47:09 +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 06OFl9CI018322 for ; Fri, 24 Jul 2020 15:47:09 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 06OFl9eb018321 for net@FreeBSD.org; Fri, 24 Jul 2020 15:47:09 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: Fri, 24 Jul 2020 15:47:10 +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: Fri, 24 Jul 2020 15:47:10 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D248046 --- Comment #10 from dmilith --- Bug is still here. Not with ifconfig bridge0 create but on destroy. Steps to reproduce: ifconfig bridge0 create ifconfig bridge0 addm em0 up ifconfig bridge0 destroy KP: [33] KDB: stack backtrace: [33] #0 0xffffffff80b975db at kdb_backtrace+0x6b [33] #1 0xffffffff80b512b0 at vpanic+0x180 [33] #2 0xffffffff80b510b3 at panic+0x43 [33] #3 0xffffffff80b2dc84 at malloc_dbg+0xd4 [33] #4 0xffffffff80b2da21 at malloc+0x21 [33] #5 0xffffffff83134b79 at bridge_ioctl_gifs+0xb9 [33] #6 0xffffffff83136476 at bridge_ioctl+0x336 [33] #7 0xffffffff80c44c03 at ifioctl+0x763 [33] #8 0xffffffff80bb6b71 at kern_ioctl+0x301 [33] #9 0xffffffff80bb67c7 at sys_ioctl+0x127 [33] #10 0xffffffff810181a6 at amd64_syscall+0x2b6 [33] #11 0xffffffff80fefcd0 at fast_syscall_common+0x101 --=20 You are receiving this mail because: You are on the CC list for the bug.=