** Description changed: - We applied a partial fix for a regression in LP: #1780137 - that applied - to inode bitmaps. We also need a fix for block bitmaps. + [Impact] + The stress-ng mknod/dentry tests can trigger a bug that causes ext4 error messages: + EXT4-fs error (device sda2): ext4_validate_block_bitmap:383: comm + stress-ng: bg 4705: bad block bitmap checksum + + Observed on HiSilicon D05 and D06 arm64 servers. + + [Test Case] + We use the Canonical certification test suite, which wraps various stress-ng tests, to reproduce this: + + $ sudo apt-add-repository -y ppa:hardware-certification/public + $ sudo apt install -y canonical-certification-server + $ sudo mkfs.ext4 /dev/sda1 (Obviously, this should not be your root disk!!) + $ sudo /usr/lib/plainbox-provider-checkbox/bin/disk_stress_ng sda --base-time 240 --really-run + + [Fix] + We applied a partial fix for a regression in LP: #1780137 - that applied to inode bitmaps. We also need a fix for block bitmaps. https://marc.info/?l=linux-ext4&m=153143692320723&w=2 + + [Regression Risk] + With the proposed fix, the above test case passes reliably. I'm not an expert in the code though, so I don't have a good feel for the risks to it.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1781709 Title: [Regression] EXT4-fs error (device sda2): ext4_validate_block_bitmap:383: comm stress-ng: bg 4705: bad block bitmap checksum To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1781709/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
