How was the RAID6 setup? And is this reproducible inside VM? -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/2023497
Title: Kernel oops when using md dirty stripe journal Status in linux package in Ubuntu: Confirmed Bug description: Hi there, When running using the md dirty stripe journal (mdadm --create --write-journal) I get a machine hard lockup when under heavy i/o load. The issue only occurs when the i/o is going through the md device. After hooking up a serial console, after upgrading my Jammy install to use the newer OEM kernel (this was occurring before), the machine output this kernel oops. Most of the time the machine hard locks without printing anything. $ lsb_release -rd Description: Ubuntu 22.04.2 LTS Release: 22.04 Here's the oops [ 325.784074] BUG: kernel NULL pointer dereference, address: 0000000000000157 [ 325.791039] #PF: supervisor read access in kernel mode [ 325.796186] #PF: error_code(0x0000) - not-present page [ 325.801325] PGD 80000001658f0067 P4D 80000001658f0067 PUD 165a3a067 PMD 0 [ 325.808206] Oops: 0000 [#1] PREEMPT SMP PTI [ 325.812392] CPU: 3 PID: 2256 Comm: md125_raid6 Kdump: loaded Not tainted 6.1.0-1013-oem #13-Ubuntu [ 325.821345] Hardware name: System manufacturer System Product Name/P8C WS, BIOS 3703 07/16/2018 [ 325.830036] RIP: 0010:submit_bio_noacct+0x132/0x570 [ 325.834914] Code: 4c 8b 6b 48 4d 85 ed 74 19 4c 63 25 78 c4 c0 01 49 83 fc 05 0f 87 31 04 00 00 4f 8b ac e5 b8 00 00 00 44 8b 63 10 41 83 e4 01 <47> 0f b6 b4 25 56 01 00 00 41 80 fe 01 0f 87 91 f3 80 00 41 83 e6 [ 325.853660] RSP: 0018:ffffa018c3983cd8 EFLAGS: 00010202 [ 325.858884] RAX: 0000000000000001 RBX: ffff9206192950b8 RCX: 0000000000000000 [ 325.866018] RDX: 0000000000040001 RSI: 0000000000000000 RDI: ffff9206192950b8 [ 325.873149] RBP: ffffa018c3983d08 R08: 0000000000000000 R09: 0000000000000000 [ 325.880274] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 [ 325.887406] R13: 0000000000000000 R14: ffff9206204351d0 R15: 0000000003785c80 [ 325.894549] FS: 0000000000000000(0000) GS:ffff920cfecc0000(0000) knlGS:0000000000000000 [ 325.902635] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 325.908389] CR2: 0000000000000157 CR3: 00000001229a2006 CR4: 00000000001706e0 [ 325.915523] Call Trace: [ 325.917975] <TASK> [ 325.920081] submit_bio+0x28/0x80 [ 325.923399] r5l_flush_stripe_to_raid+0x103/0x160 [raid456] [ 325.928972] handle_active_stripes.constprop.0+0xb2/0x2c0 [raid456] [ 325.935239] raid5d+0x248/0x4b0 [raid456] [ 325.939250] md_thread+0xae/0x190 [ 325.942569] ? destroy_sched_domains_rcu+0x40/0x40 [ 325.947364] ? md_set_read_only+0xa0/0xa0 [ 325.951374] kthread+0xe9/0x110 [ 325.954521] ? kthread_complete_and_exit+0x20/0x20 [ 325.959313] ret_from_fork+0x22/0x30 [ 325.962893] </TASK> [ 325.965083] Modules linked in: iTCO_wdt intel_pmc_bxt iTCO_vendor_support xfs wireguard curve25519_x86_64 libchacha20poly1305 chacha_x86_64 poly1305_x86_64 libcurve25519_generic libchacha ip6_udp_tunnel udp_tunnel zram binfmt_misc nls_iso8859_1 intel_rapl_msr mei_pxp mei_hdcp intel_rapl_common x86_pkg_temp_thermal intel_powerclamp kvm_intel kvm rapl intel_cstate snd_hda_codec_realtek eeepc_wmi wmi_bmof snd_hda_codec_generic at24 snd_hda_intel snd_intel_dspcfg snd_intel_sdw_acpi snd_hda_codec snd_hda_core snd_hwdep snd_pcm snd_timer bfq mei_me snd soundcore mei ie31200_edac tpm_infineon mac_hid sch_fq_codel dm_multipath scsi_dh_rdac scsi_dh_emc scsi_dh_alua nct6775 nct6775_core hwmon_vid coretemp drivetemp msr ramoops reed_solomon pstore_blk pstore_zone efi_pstore drm ip_tables x_tables autofs4 btrfs blake2b_generic zstd_compress raid10 multipath linear dm_integrity dm_bufio dm_raid raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 [ 325.965132] crct10dif_pclmul crc32_pclmul polyval_clmulni polyval_generic mfd_aaeon ghash_clmulni_intel sha512_ssse3 asus_wmi aesni_intel ledtrig_audio sparse_keymap hid_generic crypto_simd i2c_i801 usbhid cryptd platform_profile mvsas lpc_ich i2c_smbus ixgbe hid e1000e libsas ahci scsi_transport_sas xfrm_algo xhci_pci dca libahci xhci_pci_renesas mdio video wmi z3fold lz4 lz4_compress [ 326.086119] CR2: 0000000000000157 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2023497/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
