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Sun, 03 Nov 2019 17:43:07 -0800 (PST) Received: from spectre.mavhome.dp.ua ([75.104.85.209]) by smtp.gmail.com with ESMTPSA id b11sm858263ios.43.2019.11.03.17.43.00 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 03 Nov 2019 17:43:07 -0800 (PST) Subject: Re: svn commit: r354283 - in head: stand/libsa/zfs sys/cddl/boot/zfs To: d@delphij.net, Ravi Pokala , Toomas Soome , src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org References: <201911031325.xA3DPl3B080386@repo.freebsd.org> <61bed957-a0c5-bb95-8138-13d00df9d44f@delphij.net> From: Alexander Motin Autocrypt: addr=mavbsd@gmail.com; prefer-encrypt=mutual; keydata= mQENBFOzxAwBCADkPrax0pI2W/ig0CK9nRJJwsHitAGEZ2HZiFEuti+6/4UVxj81yr4ak/4g 9bKUyC7rMEAp/ZHNhd+MFCPAAcHPvtovnfykqE/vuosCS3wlSLloix2iKVLks0CwbLHGAyne 46lTQW74Xl/33c3W1Z6d8jD9gVFT/xaVzZ0U9xdzOmsYAZaAj4ki0tuxO9F7L+ct9grRe7iP g8t9hai7BL4ee3VRwk2JXnKb7UvBiVITKYWKz1jRvZIrjPokgEcCLOSlv7x/1kjuFnj3xWZU 7HSFFT8J93epBbrSSCsYsppIk2fZH41kaaFXsMQfTPH8wkeM6qwrvOh4HiQM08R+9tThABEB AAG0IkFsZXhhbmRlciBNb3RpbiA8bWF2YnNkQGdtYWlsLmNvbT6JAVQEEwEKAD4CGwMFCwkI BwMFFQoJCAsFFgMCAQACHgECF4AWIQTpjPPE5pzDzQ5XnVWDGMOVW6sifwUCWWDCtwUJDTHM ogAKCRCDGMOVW6sif7nYB/9TpvgdnxMVBT9aPaaGrFOToI8lV5eCUIB3ot6+VbfeMam0nkFZ GGoaXvDMdIf++1jFADTP+hcl1fIrrH1uy2ZS1tDu3Ngd6BUCAcHcbFEqEZnCwzQTkULHbYGJ pHxKAvQYIvrOTpBb4IBHBO44lOVC21VYj8ii6hTr1ACqYa4SbIaQobByWkWErHNGN9A64LFS rbir4mXJ0Bo0vgfj3jtoGEV8RrbYseYBR2NOaw+1GjRMjoJxyTMgU1XNDZHAVGHiw/KG2cR8 EH4rqj47fLWJLWZy/ffUsWmqDnWvqswbzZjQXT8B4Yls9aqum5pykoNKtbAFT8Xpb/Y9RE1s nkXTuQENBFOzxAwBCADmYFn9nCSLvufCMz9nZFxP7q497a+Dqqwf8hxllH+9S8+g9BYumQF4 A7ZnBSxj3zMlriwL0jPsZqILpO8wuIUQWL0MnJiIbqgatYztVqf2fpaaDzP9XA2C5/BZb5iP 3ONDIVGYd+OQwOI2FlmmTY0B1FlUNXz3+feb3VVTD0/2mxPBOQ2hen0pEZqhU5n2EZH27d8r VPDXVGqQ3CVWO3BD9pyQVTWT5ziDm0f2SIEsY46xuaN+Ml6KnrqfCb8BL/vzcpc87slxGUdR HRCM0P2tZ4f9I+DV7c2RKiluGk1pZkqm+sDfI4dTkjjqpGLH5xN538XGW8YuCEaDUGJZufUf ABEBAAGJATwEGAEKACYCGwwWIQTpjPPE5pzDzQ5XnVWDGMOVW6sifwUCWWDC2AUJDTHMzAAK CRCDGMOVW6sif06oB/0UBwpZL3nBNNutpcCqD/5tDIeCOUy0YKCSZ/EuxtQZ6qIWCZIi6gOs Xurqxg+zqnTQJddlG641m3SVfs73mt7yaDODGbmImKxml1scxV6liXD8DFPbAIfDEYIR7rgu b4D2+OU537cPf/p9IvBn1YUITqnqVBnUIODT3F74kpKAL4oOqafS3MYrJ9IK6FECrdeRnLEv WHEFoN4/R54qXOjLuNeh1/fBW9ddzRyanNoHkxy5EcrgRTqMiKgejfRio8zgCM8cbFXZfU3r 8BrK6eDOP0Rc1m0oLGzp2xO+OeJZrlWRn0XhI51JvER6fUNlFil5ad3sZWY7zqf7lRKQoJc+ tCJBbGV4YW5kZXIgTW90aW4gPG1hdmJzZEBnbWFpbC5jb20+uQENBFOzxAwBCADmYFn9nCSL vufCMz9nZFxP7q497a+Dqqwf8hxllH+9S8+g9BYumQF4A7ZnBSxj3zMlriwL0jPsZqILpO8w uIUQWL0MnJiIbqgatYztVqf2fpaaDzP9XA2C5/BZb5iP3ONDIVGYd+OQwOI2FlmmTY0B1FlU NXz3+feb3VVTD0/2mxPBOQ2hen0pEZqhU5n2EZH27d8rVPDXVGqQ3CVWO3BD9pyQVTWT5ziD m0f2SIEsY46xuaN+Ml6KnrqfCb8BL/vzcpc87slxGUdRHRCM0P2tZ4f9I+DV7c2RKiluGk1p Zkqm+sDfI4dTkjjqpGLH5xN538XGW8YuCEaDUGJZufUfABEBAAGJATwEGAEKACYCGwwWIQTp jPPE5pzDzQ5XnVWDGMOVW6sifwUCWWDC2AUJDTHMzAAKCRCDGMOVW6sif06oB/0UBwpZL3nB NNutpcCqD/5tDIeCOUy0YKCSZ/EuxtQZ6qIWCZIi6gOsXurqxg+zqnTQJddlG641m3SVfs73 mt7yaDODGbmImKxml1scxV6liXD8DFPbAIfDEYIR7rgub4D2+OU537cPf/p9IvBn1YUITqnq VBnUIODT3F74kpKAL4oOqafS3MYrJ9IK6FECrdeRnLEvWHEFoN4/R54qXOjLuNeh1/fBW9dd zRyanNoHkxy5EcrgRTqMiKgejfRio8zgCM8cbFXZfU3r8BrK6eDOP0Rc1m0oLGzp2xO+OeJZ rlWRn0XhI51JvER6fUNlFil5ad3sZWY7zqf7lRKQoJc+ Message-ID: Date: Sun, 3 Nov 2019 20:42:53 -0500 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:68.0) Gecko/20100101 Thunderbird/68.0 MIME-Version: 1.0 In-Reply-To: <61bed957-a0c5-bb95-8138-13d00df9d44f@delphij.net> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 475wY91B5xz3KHf X-Spamd-Bar: -- Authentication-Results: mx1.freebsd.org; dkim=pass header.d=gmail.com header.s=20161025 header.b=COe8Rprc; dmarc=pass (policy=none) header.from=gmail.com; spf=pass (mx1.freebsd.org: domain of mavbsd@gmail.com designates 2607:f8b0:4864:20::143 as permitted sender) smtp.mailfrom=mavbsd@gmail.com X-Spamd-Result: default: False [-3.00 / 15.00]; RCVD_VIA_SMTP_AUTH(0.00)[]; TO_DN_SOME(0.00)[]; R_SPF_ALLOW(-0.20)[+ip6:2607:f8b0:4000::/36]; FREEMAIL_FROM(0.00)[gmail.com]; RCPT_COUNT_FIVE(0.00)[6]; RCVD_COUNT_THREE(0.00)[3]; DKIM_TRACE(0.00)[gmail.com:+]; DMARC_POLICY_ALLOW(-0.50)[gmail.com,none]; RECEIVED_SPAMHAUS_PBL(0.00)[209.85.104.75.khpj7ygk5idzvmvt5x4ziurxhy.zen.dq.spamhaus.net : 127.0.0.11]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; FREEMAIL_ENVFROM(0.00)[gmail.com]; ASN(0.00)[asn:15169, ipnet:2607:f8b0::/32, country:US]; MID_RHS_MATCH_FROM(0.00)[]; DWL_DNSWL_NONE(0.00)[gmail.com.dwl.dnswl.org : 127.0.5.0]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-1.00)[-0.999,0]; R_DKIM_ALLOW(-0.20)[gmail.com:s=20161025]; FROM_HAS_DN(0.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; MIME_GOOD(-0.10)[text/plain]; IP_SCORE(0.00)[ip: (1.85), ipnet: 2607:f8b0::/32(-2.38), asn: 15169(-2.03), country: US(-0.05)]; IP_SCORE_FREEMAIL(0.00)[]; TO_MATCH_ENVRCPT_SOME(0.00)[]; RCVD_IN_DNSWL_NONE(0.00)[3.4.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.0.4.6.8.4.0.b.8.f.7.0.6.2.list.dnswl.org : 127.0.5.0]; RCVD_TLS_ALL(0.00)[] X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 04 Nov 2019 01:43:10 -0000 On 03.11.2019 20:19, Xin Li wrote: > On 2019-11-03 15:30, Ravi Pokala wrote: >> Uh.... >> >> I've had a log device in my boot-pool for months, and have booted without issue: >> >> [threepio:~] rpokala% zpool status zroot >> pool: zroot >> state: ONLINE >> scan: scrub repaired 0 in 0 days 00:04:36 with 0 errors on Mon Oct 28 03:10:59 2019 >> config: >> >> NAME STATE READ WRITE CKSUM >> zroot ONLINE 0 0 0 >> nvd1p4 ONLINE 0 0 0 >> logs >> nvd0p1 ONLINE 0 0 0 >> >> errors: No known data errors > > > This is not supported, and it's not trivial to support it, because in > order to support it, the bootloader would have to know how to replay > zilogs, which would add quite a lot of code to it. The issue with ZIL not being replayed in case of read-only mount has nothing to do with the fact of SLOG device presence. The issue is the same when ZIL resides on the main disks of the pool. So while everything else you said is right, I see no any reason to ban pools with SLOG devices in this context. -- Alexander Motin