Hey so this is totally still happening on kernel 5.8.0-53. Just got this serial console capture:
babylon login: [1457468.880947] BUG: stack guard page was hit at 000000007aef1a4a (stack is 00000000af9c61cd..000000007ccda653) [1457468.880948] kernel stack overflow (double-fault): 0000 [#1] SMP NOPTI [1457468.880948] CPU: 3 PID: 512 Comm: md0_raid6 Tainted: P OE 5.8.0-53-generic #60-Ubuntu [1457468.880949] Hardware name: Gigabyte Technology Co., Ltd. B550M AORUS PRO/B550M AORUS PRO, BIOS F13h 04/23/2021 [1457468.880949] RIP: 0010:slab_free_freelist_hook+0x35/0x120 [1457468.880950] Code: 89 d5 41 54 49 89 f4 53 48 89 fb 48 83 ec 08 48 8b 02 4c 8b 36 48 c7 06 00 00 00 00 48 c7 02 00 00 00 00 48 85 c0 49 0f 44 c6 <48> 89 45 d0 eb 06 4c 3b 7d d0 74 5d 8b 53 20 4d 89 f7 49 8d 34 16 [1457468.880951] RSP: 0018:ffffbcda805efff8 EFLAGS: 00010246 [1457468.880952] RAX: ffff9bfb8ccc42a0 RBX: ffff9bfcdb407800 RCX: 0000000000000001 [1457468.880952] RDX: ffffbcda805f0040 RSI: ffffbcda805f0038 RDI: ffff9bfcdb407800 [1457468.880953] RBP: ffffbcda805f0028 R08: 0000000000000001 R09: ffffffff90841600 [1457468.880953] R10: ffff9bfb8ccc4f40 R11: 0000000000000001 R12: ffffbcda805f0038 [1457468.880953] R13: ffffbcda805f0040 R14: ffff9bfb8ccc42a0 R15: ffff9bf766967940 [1457468.880954] FS: 0000000000000000(0000) GS:ffff9bfcdeac0000(0000) knlGS:0000000000000000 [1457468.880954] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [1457468.880955] CR2: ffffbcda805effe8 CR3: 00000003a65ee000 CR4: 0000000000340ee0 [1457468.880955] Call Trace: [1457468.880955] ? mempool_kfree+0xe/0x10 [1457468.880956] ? kfree+0xb8/0x220 [1457468.880956] ? mempool_kfree+0xe/0x10 [1457468.880956] ? mempool_free+0x2f/0x80 [1457468.880956] ? md_end_io+0x4b/0x70 [1457468.880957] ? bio_endio+0xe6/0x150 [1457468.880957] ? bio_chain_endio+0x2d/0x40 [1457468.880957] ? md_end_io+0x5d/0x70 [1457468.880958] ? bio_endio+0xe6/0x150 [1457468.880958] ? bio_chain_endio+0x2d/0x40 [1457468.880958] ? md_end_io+0x5d/0x70 [1457468.880959] ? bio_endio+0xe6/0x150 [1457468.880959] ? bio_chain_endio+0x2d/0x40 [1457468.880959] ? md_end_io+0x5d/0x70 [1457468.880959] ? bio_endio+0xe6/0x150 [1457468.880960] ? bio_chain_endio+0x2d/0x40 [1457468.880960] ? md_end_io+0x5d/0x70 [1457468.880960] ? bio_endio+0xe6/0x150 [1457468.880960] ? bio_chain_endio+0x2d/0x40 [1457468.880961] ? md_end_io+0x5d/0x70 [1457468.880961] ? bio_endio+0xe6/0x150 [1457468.880961] ? bio_chain_endio+0x2d/0x40 [1457468.880962] ? md_end_io+0x5d/0x70 [1457468.880962] ? bio_endio+0xe6/0x150 [1457468.880962] ? bio_chain_endio+0x2d/0x40 [1457468.880962] ? md_end_io+0x5d/0x70 [1457468.880963] ? bio_endio+0xe6/0x150 [1457468.880963] ? bio_chain_endio+0x2d/0x40 [1457468.880963] ? md_end_io+0x5d/0x70 [1457468.880963] ? bio_endio+0xe6/0x150 [1457468.880964] ? bio_chain_endio+0x2d/0x40 [1457468.880964] ? md_end_io+0x5d/0x70 [1457468.880964] ? bio_endio+0xe6/0x150 [1457468.880965] ? bio_chain_endio+0x2d/0x40 [1457468.880965] ? md_end_io+0x5d/0x70 [1457468.880965] ? bio_endio+0xe6/0x150 [1457468.880965] ? bio_chain_endio+0x2d/0x40 [1457468.880966] ? md_end_io+0x5d/0x70 [1457468.880966] ? bio_endio+0xe6/0x150 [1457468.880966] ? bio_chain_endio+0x2d/0x40 [1457468.880966] ? md_end_io+0x5d/0x70 [1457468.880967] ? bio_endio+0xe6/0x150 [1457468.880967] ? bio_chain_endio+0x2d/0x40 [1457468.880967] ? md_end_io+0x5d/0x70 [1457468.880968] ? bio_endio+0xe6/0x150 [1457468.880968] ? bio_chain_endio+0x2d/0x40 [1457468.880968] ? md_end_io+0x5d/0x70 [1457468.880968] ? bio_endio+0xe6/0x150 [1457468.880969] ? bio_chain_endio+0x2d/0x40 [1457468.880969] ? md_end_io+0x5d/0x70 [1457468.880969] ? bio_endio+0xe6/0x150 [1457468.880969] ? bio_chain_endio+0x2d/0x40 [1457468.880970] ? md_end_io+0x5d/0x70 [1457468.880970] ? bio_endio+0xe6/0x150 [1457468.880970] ? bio_chain_endio+0x2d/0x40 [1457468.880971] ? md_end_io+0x5d/0x70 [1457468.880971] ? bio_endio+0xe6/0x150 [1457468.880971] ? bio_chain_endio+0x2d/0x40 [1457468.880971] ? md_end_io+0x5d/0x70 [1457468.880972] ? bio_endio+0xe6/0x150 [1457468.880972] ? bio_chain_endio+0x2d/0x40 [1457468.880972] ? md_end_io+0x5d/0x70 [1457468.880972] ? bio_endio+0xe6/0x150 [1457468.880973] ? bio_chain_endio+0x2d/0x40 [1457468.880973] ? md_end_io+0x5d/0x70 [1457468.880973] ? bio_endio+0xe6/0x150 [1457468.880973] ? bio_chain_endio+0x2d/0x40 [1457468.880974] ? md_end_io+0x5d/0x70 [1457468.880974] ? bio_endio+0xe6/0x150 [1457468.880974] ? bio_chain_endio+0x2d/0x40 [1457468.880975] ? md_end_io+0x5d/0x70 [1457468.880975] ? bio_endio+0xe6/0x150 [1457468.880975] ? bio_chain_endio+0x2d/0x40 [1457468.880975] ? md_end_io+0x5d/0x70 [1457468.880976] ? bio_endio+0xe6/0x150 [1457468.880976] ? bio_chain_endio+0x2d/0x40 [1457468.880976] ? md_end_io+0x5d/0x70 [1457468.880976] ? bio_endio+0xe6/0x150 [1457468.880977] ? bio_chain_endio+0x2d/0x40 [1457468.880977] ? md_end_io+0x5d/0x70 [1457468.880977] ? bio_endio+0xe6/0x150 [1457468.880978] ? bio_chain_endio+0x2d/0x40 [1457468.880978] ? md_end_io+0x5d/0x70 [1457468.880978] ? bio_endio+0xe6/0x150 [1457468.880978] ? bio_chain_endio+0x2d/0x40 [1457468.880979] ? md_end_io+0x5d/0x70 [1457468.880979] ? bio_endio+0xe6/0x150 [1457468.880979] ? bio_chain_endio+0x2d/0x40 [1457468.880979] ? md_end_io+0x5d/0x70 [1457468.880980] ? bio_endio+0xe6/0x150 [1457468.880980] ? bio_chain_endio+0x2d/0x40 [1457468.880980] ? md_end_io+0x5d/0x70 [1457468.880981] ? bio_endio+0xe6/0x150 [1457468.880981] ? bio_chain_endio+0x2d/0x40 [1457468.880981] ? md_end_io+0x5d/0x70 [1457468.880981] ? bio_endio+0xe6/0x150 [1457468.880982] ? bio_chain_endio+0x2d/0x40 [1457468.880982] ? md_end_io+0x5d/0x70 [1457468.880982] ? bio_endio+0xe6/0x150 [1457468.880982] ? bio_chain_endio+0x2d/0x40 [1457468.880983] ? md_end_io+0x5d/0x70 [1457468.880983] ? bio_endio+0xe6/0x150 [1457468.880983] ? bio_chain_endio+0x2d/0x40 [1457468.880984] ? md_end_io+0x5d/0x70 [1457468.880984] ? bio_endio+0xe6/0x150 [1457468.880984] ? bio_chain_endio+0x2d/0x40 [1457468.880984] ? md_end_io+0x5d/0x70 [1457468.880985] ? bio_endio+0xe6/0x150 [1457468.880985] ? bio_chain_endio+0x2d/0x40 [1457468.880985] ? md_end_io+0x5d/0x70 [1457468.880985] ? bio_endio+0xe6/0x150 [1457468.880986] ? bio_chain_endio+0x2d/0x40 [1457468.880986] ? md_end_io+0x5d/0x70 [1457468.880986] ? bio_endio+0xe6/0x150 [1457468.880987] ? bio_chain_endio+0x2d/0x40 [1457468.880987] ? md_end_io+0x5d/0x70 [1457468.880987] ? bio_endio+0xe6/0x150 [1457468.880987] ? bio_chain_endio+0x2d/0x40 [1457468.880988] ? md_end_io+0x5d/0x70 [1457468.880988] ? bio_endio+0xe6/0x150 [1457468.880988] ? bio_chain_endio+0x2d/0x40 [1457468.880988] ? md_end_io+0x5d/0x70 [1457468.880989] ? bio_endio+0xe6/0x150 [1457468.880989] ? bio_chain_endio+0x2d/0x40 [1457468.880989] ? md_end_io+0x5d/0x70 [1457468.880989] ? bio_endio+0xe6/0x150 [1457468.880990] ? bio_chain_endio+0x2d/0x40 [1457468.880990] ? md_end_io+0x5d/0x70 [1457468.880990] ? bio_endio+0xe6/0x150 [1457468.880991] ? bio_chain_endio+0x2d/0x40 [1457468.880991] ? md_end_io+0x5d/0x70 [1457468.880991] ? bio_endio+0xe6/0x150 [1457468.880991] ? bio_chain_endio+0x2d/0x40 [1457468.880992] ? md_end_io+0x5d/0x70 [1457468.880992] ? bio_endio+0xe6/0x150 [1457468.880992] ? bio_chain_endio+0x2d/0x40 [1457468.880992] ? md_end_io+0x5d/0x70 [1457468.880993] ? bio_endio+0xe6/0x150 [1457468.880993] ? bio_chain_endio+0x2d/0x40 [1457468.880993] ? md_end_io+0x5d/0x70 [1457468.880994] ? bio_endio+0xe6/0x150 [1457468.880994] ? bio_chain_endio+0x2d/0x40 [1457468.880994] ? md_end_io+0x5d/0x70 [1457468.880994] ? bio_endio+0xe6/0x150 [1457468.880995] ? bio_chain_endio+0x2d/0x40 [1457468.880995] ? md_end_io+0x5d/0x70 [1457468.880995] ? bio_endio+0xe6/0x150 [1457468.880995] ? bio_chain_endio+0x2d/0x40 [1457468.880996] ? md_end_io+0x5d/0x70 [1457468.880996] ? bio_endio+0xe6/0x150 [1457468.880996] ? bio_chain_endio+0x2d/0x40 [1457468.880997] ? md_end_io+0x5d/0x70 [1457468.880997] ? bio_endio+0xe6/0x150 [1457468.880997] ? bio_chain_endio+0x2d/0x40 [1457468.880997] ? md_end_io+0x5d/0x70 [1457468.880998] ? bio_endio+0xe6/0x150 [1457468.880998] ? bio_chain_endio+0x2d/0x40 [1457468.880998] ? md_end_io+0x5d/0x70 [1457468.880998] ? bio_endio+0xe6/0x150 [1457468.880999] ? bio_chain_endio+0x2d/0x40 [1457468.880999] ? md_end_io+0x5d/0x70 [1457468.880999] ? bio_endio+0xe6/0x150 [1457468.881000] ? bio_chain_endio+0x2d/0x40 [1457468.881000] ? md_end_io+0x5d/0x70 [1457468.881000] ? bio_endio+0xe6/0x150 [1457468.881000] ? bio_chain_endio+0x2d/0x40 [1457468.881001] ? md_end_io+0x5d/0x70 [1457468.881001] ? bio_endio+0xe6/0x150 [1457468.881001] ? bio_chain_endio+0x2d/0x40 [1457468.881001] ? md_end_io+0x5d/0x70 [1457468.881002] ? bio_endio+0xe6/0x150 [1457468.881002] ? bio_chain_endio+0x2d/0x40 [1457468.881002] ? md_end_io+0x5d/0x70 [1457468.881003] ? bio_endio+0xe6/0x150 [1457468.881003] ? bio_chain_endio+0x2d/0x40 [1457468.881003] ? md_end_io+0x5d/0x70 [1457468.881003] ? bio_endio+0xe6/0x150 [1457468.881004] ? bio_chain_endio+0x2d/0x40 [1457468.881004] ? md_end_io+0x5d/0x70 [1457468.881004] ? bio_endio+0xe6/0x150 [1457468.881004] ? bio_chain_endio+0x2d/0x40 [1457468.881005] ? md_end_io+0x5d/0x70 [1457468.881005] ? bio_endio+0xe6/0x150 [1457468.881005] ? bio_chain_endio+0x2d/0x40 [1457468.881006] ? md_end_io+0x5d/0x70 [1457468.881006] ? bio_endio+0xe6/0x150 [1457468.881006] ? bio_chain_endio+0x2d/0x40 [1457468.881006] ? md_end_io+0x5d/0x70 [1457468.881007] ? bio_endio+0xe6/0x150 [1457468.881007] ? bio_chain_endio+0x2d/0x40 [1457468.881007] ? md_end_io+0x5d/0x70 [1457468.881007] ? bio_endio+0xe6/0x150 [1457468.881008] ? bio_chain_endio+0x2d/0x40 [1457468.881008] ? md_end_io+0x5d/0x70 [1457468.881008] ? bio_endio+0xe6/0x150 [1457468.881009] ? bio_chain_endio+0x2d/0x40 [1457468.881009] ? md_end_io+0x5d/0x70 [1457468.881009] ? bio_endio+0xe6/0x150 [1457468.881009] ? bio_chain_endio+0x2d/0x40 [1457468.881010] ? md_end_io+0x5d/0x70 [1457468.881010] ? bio_endio+0xe6/0x150 [1457468.881010] ? bio_chain_endio+0x2d/0x40 [1457468.881010] ? md_end_io+0x5d/0x70 [1457468.881011] ? bio_endio+0xe6/0x150 [1457468.881011] ? bio_chain_endio+0x2d/0x40 [1457468.881011] ? md_end_io+0x5d/0x70 [1457468.881011] ? bio_endio+0xe6/0x150 [1457468.881012] ? bio_chain_endio+0x2d/0x40 [1457468.881012] ? md_end_io+0x5d/0x70 [1457468.881012] ? bio_endio+0xe6/0x150 [1457468.881013] ? bio_chain_endio+0x2d/0x40 [1457468.881013] ? md_end_io+0x5d/0x70 [1457468.881013] ? bio_endio+0xe6/0x150 [1457468.881013] ? bio_chain_endio+0x2d/0x40 [1457468.881014] ? md_end_io+0x5d/0x70 [1457468.881014] ? bio_endio+0xe6/0x150 [1457468.881014] ? bio_chain_endio+0x2d/0x40 [1457468.881014] ? md_end_io+0x5d/0x70 [1457468.881015] ? bio_endio+0xe6/0x150 [1457468.881015] ? bio_chain_endio+0x2d/0x40 [1457468.881015] ? md_end_io+0x5d/0x70 [1457468.881016] ? bio_endio+0xe6/0x150 [1457468.881016] ? bio_chain_endio+0x2d/0x40 [1457468.881016] ? md_end_io+0x5d/0x70 [1457468.881016] ? bio_endio+0xe6/0x150 [1457468.881017] ? bio_chain_endio+0x2d/0x40 [1457468.881017] ? md_end_io+0x5d/0x70 [1457468.881017] ? bio_endio+0xe6/0x150 [1457468.881017] ? bio_chain_endio+0x2d/0x40 [1457468.881018] ? md_end_io+0x5d/0x70 [1457468.881018] ? bio_endio+0xe6/0x150 [1457468.881018] ? bio_chain_endio+0x2d/0x40 [1457468.881019] ? md_end_io+0x5d/0x70 [1457468.881019] ? bio_endio+0xe6/0x150 [1457468.881019] ? bio_chain_endio+0x2d/0x40 [1457468.881019] ? md_end_io+0x5d/0x70 [1457468.881020] ? bio_endio+0xe6/0x150 [1457468.881020] ? bio_chain_endio+0x2d/0x40 [1457468.881020] ? md_end_io+0x5d/0x70 [1457468.881020] ? bio_endio+0xe6/0x150 [1457468.881021] ? bio_chain_endio+0x2d/0x40 [1457468.881021] ? md_end_io+0x5d/0x70 [1457468.881021] ? bio_endio+0xe6/0x150 [1457468.881022] ? bio_chain_endio+0x2d/0x40 [1457468.881022] ? md_end_io+0x5d/0x70 [1457468.881022] ? bio_endio+0xe6/0x150 [1457468.881022] ? bio_chain_endio+0x2d/0x40 [1457468.881023] ? md_end_io+0x5d/0x70 [1457468.881023] ? bio_endio+0xe6/0x150 [1457468.881023] ? bio_chain_endio+0x2d/0x40 [1457468.881023] ? md_end_io+0x5d/0x70 [1457468.881024] ? bio_endio+0xe6/0x150 [1457468.881024] ? bio_chain_endio+0x2d/0x40 [1457468.881024] ? md_end_io+0x5d/0x70 [1457468.881025] ? bio_endio+0xe6/0x150 [1457468.881025] ? bio_chain_endio+0x2d/0x40 [1457468.881025] ? md_end_io+0x5d/0x70 [1457468.881025] ? bio_endio+0xe6/0x150 [1457468.881026] ? bio_chain_endio+0x2d/0x40 [1457468.881026] ? md_end_io+0x5d/0x70 [1457468.881026] ? bio_endio+0xe6/0x150 [1457468.881026] ? bio_chain_endio+0x2d/0x40 [1457468.881027] ? md_end_io+0x5d/0x70 [1457468.881027] ? bio_endio+0xe6/0x150 [1457468.881027] ? bio_chain_endio+0x2d/0x40 [1457468.881028] ? md_end_io+0x5d/0x70 [1457468.881028] ? bio_endio+0xe6/0x150 [1457468.881028] ? bio_chain_endio+0x2d/0x40 [1457468.881028] ? md_end_io+0x5d/0x70 [1457468.881029] ? bio_endio+0xe6/0x150 [1457468.881029] ? bio_chain_endio+0x2d/0x40 [1457468.881029] ? md_end_io+0x5d/0x70 [1457468.881029] ? bio_endio+0xe6/0x150 [1457468.881030] ? bio_chain_endio+0x2d/0x40 [1457468.881030] ? md_end_io+0x5d/0x70 [1457468.881030] ? bio_endio+0xe6/0x150 [1457468.881030] ? bi [1457468.881031] Lost 306 message(s)! [ 0.000000] Linux version 5.8.0-53-generic (buildd@lgw01-amd64-020) (gcc (Ubuntu 10.2.0-13ubuntu1) 10.2.0, GNU ld (GNU Binutils for Ubuntu) 2.35.1) #60-Ubuntu SMP Thu May 6 07:46:32 UTC 2021 (Ubuntu 5.8.0-53.60-generic 5.8.18) [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz-5.8.0-53-generic root=/dev/mapper/ubuntu--vg-ubuntu--lv ro console=tty1 console=ttyS0,115200 processor.max_cstate=5 rcu_nocbs=0-15 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1929591 Title: MD RAID 6 Periodic Kernel Panic Stack Overflow Double-Fault To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mdadm/+bug/1929591/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
