From owner-freebsd-current@freebsd.org Fri Jun 21 19:49:51 2019 Return-Path: Delivered-To: freebsd-current@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 4B21615BD025 for ; Fri, 21 Jun 2019 19:49:51 +0000 (UTC) (envelope-from asomers@gmail.com) Received: from mail-lj1-f178.google.com (mail-lj1-f178.google.com [209.85.208.178]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "smtp.gmail.com", Issuer "GTS CA 1O1" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 3EBDA75CBD for ; Fri, 21 Jun 2019 19:49:50 +0000 (UTC) (envelope-from asomers@gmail.com) Received: by mail-lj1-f178.google.com with SMTP id h10so7024226ljg.0 for ; Fri, 21 Jun 2019 12:49:50 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=I/D52KPFsNTrmcvfrg/M3clsPLAbKcaEeEtX4U578yY=; b=Xyr5Q/uTVnH+50kPZzXEqPmC9T0phV6+hVn3dnQ58hxzUWSgUUcv1zk16FZiuRIWRq vqiZ6ovhlRHAhKriM0zKTXIEy1EsGR7hgYpXARoKEUOxt8+u8eiUECp7hT5OjnejYArM HIA13D7YRGfWh8dLlNMvdsVjpyJaaA6gwMUUpRcfEYVmDEO6QVKBpUsj8jWAFTu7t7Yd FKVcZtpHNHSxZRyNhUcM0TWp3S6oxAShnwL0A9/+K70FLttMIt4BEvBo9hEGX8iriDs/ AGbxCpk7La3t1wNhBtvJw0ZQGxvFxLJCBVNltcHBMML/hWq0KgbluBECHZ7SQOhJdB2V 4Zaw== X-Gm-Message-State: APjAAAUN2ZK6sEgBv+4rl4demmm16HTfLg/BJCkA/lT28V7p2BfyqHkb 1Ba6jLyGtaJSgnNyKAZxRKywx592bcgTqZzrmRmFpQ== X-Google-Smtp-Source: APXvYqz+9XdNHllo80JIVMc9YG8BvmI3krfV7X1PqKpayCaelPaXd5dQMt+3iqD7jRjEvwqzk9+fwJQio0ylNOlDKTw= X-Received: by 2002:a2e:81d8:: with SMTP id s24mr22647883ljg.37.1561146582331; Fri, 21 Jun 2019 12:49:42 -0700 (PDT) MIME-Version: 1.0 From: Alan Somers Date: Fri, 21 Jun 2019 13:49:30 -0600 Message-ID: Subject: Reducing UFS corruption from unclean shutdowns? To: FreeBSD CURRENT Content-Type: text/plain; charset="UTF-8" X-Rspamd-Queue-Id: 3EBDA75CBD X-Spamd-Bar: --- Authentication-Results: mx1.freebsd.org; spf=pass (mx1.freebsd.org: domain of asomers@gmail.com designates 209.85.208.178 as permitted sender) smtp.mailfrom=asomers@gmail.com X-Spamd-Result: default: False [-3.22 / 15.00]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-0.99)[-0.993,0]; RCVD_COUNT_TWO(0.00)[2]; FROM_HAS_DN(0.00)[]; R_SPF_ALLOW(-0.20)[+ip4:209.85.128.0/17]; TO_MATCH_ENVRCPT_ALL(0.00)[]; MIME_GOOD(-0.10)[text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-current@freebsd.org]; DMARC_NA(0.00)[freebsd.org]; RCPT_COUNT_ONE(0.00)[1]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; MIME_TRACE(0.00)[0:+]; TO_DN_ALL(0.00)[]; MX_GOOD(-0.01)[cached: alt3.gmail-smtp-in.l.google.com]; NEURAL_HAM_SHORT(-0.96)[-0.960,0]; RCVD_IN_DNSWL_NONE(0.00)[178.208.85.209.list.dnswl.org : 127.0.5.0]; IP_SCORE(-1.26)[ip: (-0.49), ipnet: 209.85.128.0/17(-3.43), asn: 15169(-2.33), country: US(-0.06)]; RCVD_TLS_LAST(0.00)[]; FORGED_SENDER(0.30)[asomers@freebsd.org,asomers@gmail.com]; R_DKIM_NA(0.00)[]; FREEMAIL_ENVFROM(0.00)[gmail.com]; ASN(0.00)[asn:15169, ipnet:209.85.128.0/17, country:US]; FROM_NEQ_ENVFROM(0.00)[asomers@freebsd.org,asomers@gmail.com]; SUBJECT_ENDS_QUESTION(1.00)[]; TO_DOM_EQ_FROM_DOM(0.00)[] X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 21 Jun 2019 19:49:51 -0000 I panic my development VM regularly. Each time, I need to fsck the file system. Even if I had run sync(8) just before the panic, I frequently find corruption. What should I change to make sync(8) work, or at least to make corruption rare? It looks like my root file system is using soft-updates+journal. Should I disable those? -Alan