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Message-ID: <bug-217888-13602-EMgyxMQCPa@https.bugzilla.kernel.org/> Date: Fri, 08 Sep 2023 09:28:24 +0000 From: bugzilla-daemon@...nel.org To: linux-ext4@...r.kernel.org Subject: [Bug 217888] jbd2: potential data lost in recovering journal raced with synchronizing fs bdev https://bugzilla.kernel.org/show_bug.cgi?id=217888 --- Comment #2 from Zhihao Cheng (chengzhihao1@...wei.com) --- 1. Apply diff_v2 and compile kernel 2. dd if=disk of=/dev/sda bs=1M 3. mount /dev/sda temp # will stuck 4. sync /dev/sda # Type this command in another terminal, finish it in 5s when you see "wait sync" from dmesg. 4. umount temp 5. fsck.ext4 -fa /dev/sda /dev/sda: Unattached inode 13 /dev/sda: UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY. (i.e., without -a or -p options) =============== 'touch file' is recorded in journal of sda, and the journal is not replayed yet. journal in sda: Journal starts at block 1, transaction 2 Found expected sequence 2, type 1 (descriptor block) at block 1 Dumping descriptor block, sequence 2, at block 1: FS block 84 logged at journal block 2 (flags 0x0) FS block 2 logged at journal block 3 (flags 0x2) FS block 89 logged at journal block 4 (flags 0x2) # new inode FS block 86 logged at journal block 5 (flags 0x2) FS block 726 logged at journal block 6 (flags 0x2) # new dentry FS block 1 logged at journal block 7 (flags 0x2) FS block 83 logged at journal block 8 (flags 0xa) -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.
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