Recurrence on 2026-08-23 14:29 JST — different RIP (lru_activate, not lru_gen_del_folio).
Kernel: 7.0.0-30-generic #30-Ubuntu SMP PREEMPT_DYNAMIC Package: linux-image-7.0.0-30-generic 7.0.0-30.30 Oops: page fault (not-present page) at lru_activate+0x91/0x3e0 Comm: libuv-worker (PID 46527, UID 1000) Tainted: G OE (nvidia and other OOT modules) Call trace (kernel): lru_activate folio_batch_move_lru __folio_batch_add_and_move folio_mark_accessed filemap_read generic_file_read_iter ext4_file_read_iter vfs_read -> ksys_read -> read syscall This is a read-path fault during ext4 file I/O, not exit_mmap / folio release like the original report and my 2026-08-14 comment (lru_gen_del_folio). kdump: /var/crash/202608231429/ (dmesg excerpt attached) Hardware: ASUS PRIME Z690M-PLUS D4, BIOS 3811, RTX 5060 Ti, 64GB RAM — not OOM. Context: - Root ext4 on /dev/nvme0n1p2 had metadata corruption on 2026-08-22 night; offline fsck -fy from Live USB completed earlier on 2026-08-23 ~00:37 JST; subsequent boots reported clean and no EXT4-fs error lines in journal for ~5h session. - This oops kdump dmesg also shows no EXT4-fs error lines before the fault. - MGLRU mitigation from my 2026-08-14 comment remains applied: /etc/tmpfiles.d/disable-mglru.conf (w ... N), cat /sys/kernel/mm/lru_gen/enabled -> 0x0000 at crash time. Disabling MGLRU did not prevent this lru_activate fault. Prior recurrences on this machine (same bug, various RIPs): | Date (JST) | Kernel | RIP / path | Comm | |-------------------|----------|-------------------------|-----------------| | 2026-08-03 17:25 | 7.0.0-28 | lru_gen_del_folio | ThreadPoolForeg | | 2026-08-09 16:39 | 7.0.0-29 | lru_gen_del_folio | kswapd0 | | 2026-08-13 14:14 | 7.0.0-29 | lru_gen_del_folio | node (Cursor) | | 2026-08-14 03:41 | 7.0.0-29 | lru_gen_del_folio | ThreadPoolForeg | | 2026-08-23 14:29 | 7.0.0-30 | lru_activate (this post)| libuv-worker | Related local investigation (not part of Ubuntu): hostpc OS stability audit 2026-08-23. ** Attachment added: "launchpad_2162722_kdump_dmesg_202608231429.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2162722/+attachment/5994486/+files/launchpad_2162722_kdump_dmesg_202608231429.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2162722 Title: general protection fault in lru_gen_del_folio during exit_mmap (ThreadPoolForeg) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2162722/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
