From owner-freebsd-bugs@freebsd.org Sat Mar 31 14:48:57 2018 Return-Path: Delivered-To: freebsd-bugs@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id B7E49F66B1C for ; Sat, 31 Mar 2018 14:48:57 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.ysv.freebsd.org (mxrelay.ysv.freebsd.org [IPv6:2001:1900:2254:206a::19:3]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "mxrelay.ysv.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 5322086B5D for ; Sat, 31 Mar 2018 14:48:57 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2001:1900:2254:206a::16:76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.ysv.freebsd.org (Postfix) with ESMTPS id 02EC51D190 for ; Sat, 31 Mar 2018 14:48:56 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id w2VEmtXE062028 for ; Sat, 31 Mar 2018 14:48:55 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id w2VEmtEM062027 for freebsd-bugs@FreeBSD.org; Sat, 31 Mar 2018 14:48:55 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: freebsd-bugs@FreeBSD.org Subject: [Bug 227116] CURRENT doesn't boot with integer divide fault in uma_startup_count Date: Sat, 31 Mar 2018 14:48:55 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: CURRENT X-Bugzilla-Keywords: regression X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: daniel@octaforge.org X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: freebsd-bugs@FreeBSD.org X-Bugzilla-Flags: 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-bugs@freebsd.org X-Mailman-Version: 2.1.25 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 31 Mar 2018 14:48:57 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D227116 --- Comment #9 from Daniel Kolesa --- Actually, I managed to obtain a kernel-dbg.txz of the same snapshot and kgd= b it on my server, which runs HardenedBSD 11-STABLE. This is the output: (kgdb) list *uma_startup_count+0xe6 0xffffffff80e13296 is in uma_startup_count (/usr/src/sys/vm/uma_core.c:1827= ). 1822=20=20=20=20 1823 bucket_init(); 1824=20=20=20=20 1825 booted =3D UMA_STARTUP; 1826=20=20=20=20 1827 #ifdef UMA_DEBUG 1828 printf("UMA startup complete.\n"); 1829 #endif 1830 } 1831=20=20=20=20 The printed lines appear to be wrong. The actual line (1827) though appears correct, it's consistent with what I guessed from my disassembly. 1827 pages +=3D howmany(zones, 1828 UMA_SLAB_SPACE / roundup2(zsize, UMA_BOOT_ALIGN)); Sadly, without a dump, it won't be possible inspect the memory, and I reali= zed I cannot obtain a crash dump as the kernel panic happens immediately after = it's loaded, before userspace and therefore before any swap/dump device could be= set up. --=20 You are receiving this mail because: You are the assignee for the bug.=