Comment 22 for bug 1780628

And v4.19-rc6:

[ 3635.247863] ------------[ cut here ]------------
[ 3635.247865] kernel BUG at drivers/md/raid5.c:1760!
[ 3635.247872] invalid opcode: 0000 [#1] SMP PTI
[ 3635.247875] CPU: 2 PID: 279 Comm: md0_raid5 Not tainted 4.19.0-041900rc6-generic #201809301631
[ 3635.247877] Hardware name: Gigabyte Technology Co., Ltd. H370M-D3H/H370M D3H-CF, BIOS F3 03/01/2018
[ 3635.247883] RIP: 0010:raid_run_ops+0xbda/0x15d0 [raid456]
[ 3635.247886] Code: 48 8d 04 d0 48 89 45 c8 83 f9 01 0f 85 f8 f5 ff ff 49 8b 75 00 31 c9 31 d2 4c 89 e7 e8 3f a0 d4 ff 48 89 45 98 e9 f0 f5 ff ff <0f> 0b 0f 0b e9 52 f9 ff ff 4c 8b 75 80 83 85 4c ff ff ff 01 e9 18
[ 3635.247888] RSP: 0018:ffffa0154122fb48 EFLAGS: 00010002
[ 3635.247891] RAX: 0000000000000198 RBX: ffff88dad8917800 RCX: 0000000000000000
[ 3635.247893] RDX: ffff88dad8917598 RSI: ffff88da08ead120 RDI: ffff88dad8917468
[ 3635.247895] RBP: ffffa0154122fc08 R08: 0000000000001000 R09: ffffa0154122fad8
[ 3635.247896] R10: ffff88dad8917488 R11: 0000000000000000 R12: ffff88db5a759898
[ 3635.247898] R13: ffff88dad8917468 R14: ffff88dad8917400 R15: ffff88db586c0000
[ 3635.247900] FS: 0000000000000000(0000) GS:ffff88db66280000(0000) knlGS:0000000000000000
[ 3635.247902] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3635.247904] CR2: 00007ff2fe7f8ff8 CR3: 000000002220a005 CR4: 00000000003606e0
[ 3635.247906] Call Trace:
[ 3635.247911] ? handle_stripe_dirtying+0x706/0x800 [raid456]
[ 3635.247915] handle_stripe+0xb9b/0x1f90 [raid456]
[ 3635.247919] ? __wake_up_common_lock+0x8e/0xc0
[ 3635.247923] handle_active_stripes.isra.74+0x3e6/0x5d0 [raid456]
[ 3635.247927] raid5d+0x359/0x550 [raid456]
[ 3635.247931] md_thread+0x98/0x160
[ 3635.247934] ? wait_woken+0x80/0x80
[ 3635.247937] kthread+0x120/0x140
[ 3635.247939] ? md_rdev_init+0xb0/0xb0
[ 3635.247942] ? kthread_bind+0x40/0x40
[ 3635.247945] ret_from_fork+0x35/0x40
[ 3635.247947] Modules linked in: xfs nls_iso8859_1 snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic intel_rapl x86_pkg_temp_thermal intel_powerclamp snd_hda_intel coretemp ppdev kvm_intel snd_hda_codec snd_hda_core snd_hwdep intel_cstate snd_pcm snd_timer sch_fq_codel snd wmi_bmof acpi_pad intel_rapl_perf soundcore parport_pc mac_hid intel_pch_thermal mei_me mei parport ib_iser rdma_cm iw_cm ib_cm ib_core nfsd iscsi_tcp libiscsi_tcp libiscsi auth_rpcgss scsi_transport_iscsi nfs_acl lockd grace sunrpc ip_tables x_tables autofs4 btrfs zstd_compress raid10 raid1 raid0 multipath linear raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c i915 crct10dif_pclmul kvmgt crc32_pclmul vfio_mdev ghash_clmulni_intel mdev pcbc vfio_iommu_type1 vfio aesni_intel kvm
[ 3635.247984] irqbypass aes_x86_64 i2c_algo_bit crypto_simd drm_kms_helper cryptd glue_helper syscopyarea sysfillrect sysimgblt fb_sys_fops drm e1000e ahci libahci wmi video pinctrl_cannonlake pinctrl_intel
[ 3635.247996] ---[ end trace 70e03761eb30ac04 ]---
[ 3635.248000] RIP: 0010:raid_run_ops+0xbda/0x15d0 [raid456]
[ 3635.248002] Code: 48 8d 04 d0 48 89 45 c8 83 f9 01 0f 85 f8 f5 ff ff 49 8b 75 00 31 c9 31 d2 4c 89 e7 e8 3f a0 d4 ff 48 89 45 98 e9 f0 f5 ff ff <0f> 0b 0f 0b e9 52 f9 ff ff 4c 8b 75 80 83 85 4c ff ff ff 01 e9 18
[ 3635.248005] RSP: 0018:ffffa0154122fb48 EFLAGS: 00010002
[ 3635.248007] RAX: 0000000000000198 RBX: ffff88dad8917800 RCX: 0000000000000000
[ 3635.248009] RDX: ffff88dad8917598 RSI: ffff88da08ead120 RDI: ffff88dad8917468
[ 3635.248011] RBP: ffffa0154122fc08 R08: 0000000000001000 R09: ffffa0154122fad8
[ 3635.248012] R10: ffff88dad8917488 R11: 0000000000000000 R12: ffff88db5a759898
[ 3635.248014] R13: ffff88dad8917468 R14: ffff88dad8917400 R15: ffff88db586c0000
[ 3635.248016] FS: 0000000000000000(0000) GS:ffff88db66280000(0000) knlGS:0000000000000000
[ 3635.248019] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3635.248020] CR2: 00007ff2fe7f8ff8 CR3: 000000002220a005 CR4: 00000000003606e0