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charset=UTF-8 Reply-To: yukuai@fnnas.com X-Original-From: Yu Kuai Precedence: bulk X-Mailing-List: linux-raid@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 Cc: , , Subject: Re: md: regression: incorrect warn about updating super block failure From: "Yu Kuai" Received: from [192.168.1.104] ([39.182.0.137]) by smtp.feishu.cn with ESMTPS; Wed, 28 Jan 2026 17:30:20 +0800 Hi, =E5=9C=A8 2026/1/28 16:25, Tj =E5=86=99=E9=81=93: > Commit 8c9e376b9d1a222 introduces an error message that is incorrectly re= ported for LVM raid volumes: > > $ journalctl --dmesg --priority err > md_update_sb: can't update sb for read-only array mdX > md_update_sb: can't update sb for read-only array mdX > md_update_sb: can't update sb for read-only array mdX > md_update_sb: can't update sb for read-only array mdX > md_update_sb: can't update sb for read-only array mdX > md_update_sb: can't update sb for read-only array mdX > md_update_sb: can't update sb for read-only array mdX > md_update_sb: can't update sb for read-only array mdX > md_update_sb: can't update sb for read-only array mdX > md_update_sb: can't update sb for read-only array mdX > md_update_sb: can't update sb for read-only array mdX > md_update_sb: can't update sb for read-only array mdX > md_update_sb: can't update sb for read-only array mdX > md_update_sb: can't update sb for read-only array mdX > md_update_sb: can't update sb for read-only array mdX > md_update_sb: can't update sb for read-only array mdX Yeah, we should bypass dmraid, will fix it soon. > > $ sudo dmsetup table --target raid > SUNNY-Documents: 0 20971520 raid raid1 3 0 region_size 4096 2 254:74 254:= 75 254:76 254:77 > SUNNY-Media: 0 171966464 raid raid1 3 0 region_size 4096 2 254:69 254:70 = 254:71 254:72 > SUNNY-NAS: 0 46874624 raid raid1 3 0 region_size 4096 2 254:15 254:16 254= :17 254:18 > SUNNY-Projects: 0 23068672 raid raid1 3 0 region_size 4096 2 254:20 254:2= 1 254:22 254:23 > SUNNY-SourceCode_wcorig: 0 478150656 raid raid1 3 0 region_size 4096 2 25= 4:26 254:27 254:28 254:29 > SUNNY-WINE: 0 16777216 raid raid1 3 0 region_size 4096 2 254:80 254:81 25= 4:82 254:83 > SUNNY-etc: 0 106496 raid raid1 3 0 region_size 4096 2 254:57 254:58 254:5= 9 254:60 > SUNNY-home_wcorig: 0 301989888 raid raid1 3 0 region_size 4096 2 254:46 2= 54:47 254:48 254:49 > SUNNY-l8r: 0 16777216 raid raid1 3 0 region_size 4096 2 254:37 254:38 254= :39 254:40 > SUNNY-machines_old: 0 34185216 raid raid1 3 0 region_size 4096 2 254:32 2= 54:33 254:34 254:35 > SUNNY-opt: 0 41943040 raid raid1 3 0 region_size 4096 2 254:64 254:65 254= :66 254:67 > SUNNY-rootfs: 0 67108864 raid raid1 3 0 region_size 4096 2 254:3 254:4 25= 4:5 254:6 > SUNNY-usr_local: 0 16777216 raid raid1 3 0 region_size 4096 2 254:52 254:= 53 254:54 254:55 > SUNNY-var_wcorig: 0 25165824 raid raid1 3 0 region_size 4096 2 254:9 254:= 10 254:11 254:12 > > --=20 Thansk, Kuai