【openEuler 21.09】 raid1长稳测试出现BUG_ON 空指针引用

[ 5020.221265] md/raid1:md1: Disk failure on sda, disabling device.
[ 5020.221265] md/raid1:md1: Operation continuing on 1 devices.
[ 5030.437252] VFS: Open an exclusive opened block device for write sda [88421 mdadm].
[ 5030.471848] VFS: Open an exclusive opened block device for write sda [88421 mdadm].
[ 5030.764511] md: recovery of RAID array md1
[ 5040.036344] sd 5:0:16:0: [sdf] tag#2915 BRCM Debug mfi stat 0x2d, data len requested/completed 0x1000/0x0
[ 5040.045871] sd 5:0:16:0: Power-on or device reset occurred
[ 5037.167756] postfix/postdrop[88307]: warning: unable to look up public/pickup: No such file or directory
[ 5070.034669] sd 5:0:17:0: [sdg] tag#717 BRCM Debug mfi stat 0x2d, data len requested/completed 0x20000/0x0
[ 5070.044200] sd 5:0:17:0: Power-on or device reset occurred
[ 5075.053983] md/raid1:md0: Disk failure on sdf, disabling device.
[ 5075.053983] md/raid1:md0: Operation continuing on 1 devices.
[ 5100.047383] sd 5:0:16:0: [sdf] tag#740 BRCM Debug mfi stat 0x2d, data len requested/completed 0x100000/0x0
[ 5100.057028] sd 5:0:16:0: Power-on or device reset occurred
[ 5100.062304] md: md0: recovery interrupted.
[ 5130.031484] sd 5:0:17:0: [sdg] tag#625 BRCM Debug mfi stat 0x2d, data len requested/completed 0x1000/0x0
[ 5130.040925] sd 5:0:17:0: Power-on or device reset occurred
[ 5126.953001] postfix/postdrop[89034]: warning: unable to look up public/pickup: No such file or directory
[ 5130.146647] md: recovery of RAID array md0
[ 5160.029920] sd 5:0:16:0: [sdf] tag#904 BRCM Debug mfi stat 0x2d, data len requested/completed 0x6d000/0x0
[ 5160.039461] sd 5:0:16:0: Power-on or device reset occurred
[ 5190.041709] sd 5:0:17:0: Power-on or device reset occurred
[ 5195.400563] md: md1: recovery interrupted.
[ 5195.708504] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000058
[ 5195.717254] Mem abort info:
[ 5195.720040]   ESR = 0x96000006
[ 5195.723086]   Exception class = DABT (current EL), IL = 32 bits
[ 5195.728982]   SET = 0, FnV = 0
[ 5195.732028]   EA = 0, S1PTW = 0
[ 5195.735159] Data abort info:
[ 5195.738028]   ISV = 0, ISS = 0x00000006
[ 5195.741849]   CM = 0, WnR = 0
[ 5195.744808] user pgtable: 4k pages, 48-bit VAs, pgdp = 000000005cc8cdce
[ 5195.760064] Internal error: Oops: 96000006 [#1] SMP
[ 5195.835238]  ip_tables realtek hns3 hclge hibmc_drm megaraid_sas hnae3 hisi_sas_v3_hw hisi_sas_main ipmi_si ipmi_devintf ipmi_msghandler
[ 5195.847446] Process fio (pid: 78987, stack limit = 0x0000000086ac644b)
[ 5195.853942] CPU: 39 PID: 78987 Comm: fio Kdump: loaded Not tainted 4.19.59+ #1
[ 5195.861130] Hardware name: Huawei TaiShan 2280 V2/BC82AMDC, BIOS 0.10 04/27/2019
[ 5195.868491] pstate: 60400009 (nZCv daif +PAN -UAO)
[ 5195.873262] pc : raid1_write_request+0x2a0/0xa88
[ 5195.877858] lr : raid1_write_request+0x258/0xa88
[ 5195.882452] sp : ffff00001a98b6d0
[ 5195.885753] x29: ffff00001a98b6d0 x28: ffff803da4988680
[ 5195.891040] x27: 0000000000000000 x26: ffff803db2ef5200
[ 5195.896326] x25: ffff000008b9f000 x24: ffff000008b9c000
[ 5195.901613] x23: ffff8027c1203c00 x22: 0000000000000001
[ 5195.906900] x21: 0000000000000004 x20: ffff803dab543600
[ 5195.912188] x19: ffff802732268000 x18: 0000000000000000
[ 5195.917474] x17: 0000000000000000 x16: 0000000000000000
[ 5195.922763] x15: 0000000000000000 x14: 0000000000000000
[ 5195.928050] x13: 0000000000000000 x12: ffffa03db4079f10
[ 5195.933336] x11: 0000000000000800 x10: ffff803da4988698
[ 5195.938625] x9 : ffff803da49886d0 x8 : 0000000000000000
[ 5195.943914] x7 : 0000000000000000 x6 : ffff803db2ef4a00
[ 5195.949200] x5 : 0000000000025d11 x4 : ffff803dbfb28e40
[ 5195.954487] x3 : 0000000000010000 x2 : 0000000023f77800
[ 5195.959774] x1 : ffff80273133d000 x0 : 0000000000000000
[ 5195.965061] Call trace:
[ 5195.967496]  raid1_write_request+0x2a0/0xa88
[ 5195.971745]  raid1_make_request+0xc8/0x120
[ 5195.975823]  md_handle_request+0x11c/0x1b8
[ 5195.979901]  md_make_request+0x90/0x1e0
[ 5195.983720]  generic_make_request+0x174/0x350
[ 5195.988057]  submit_bio+0x5c/0x198
[ 5195.991445]  __blockdev_direct_IO+0x195c/0x1ad0
[ 5195.995957]  ext4_direct_IO+0x28c/0x7e0
[ 5195.999777]  generic_file_direct_write+0x94/0x1a0
[ 5196.004460]  __generic_file_write_iter+0xb0/0x1c8
[ 5196.009143]  ext4_file_write_iter+0x120/0x3e8
[ 5196.013480]  __vfs_write+0x11c/0x190
[ 5196.017040]  vfs_write+0xac/0x1c0
[ 5196.020340]  ksys_pwrite64+0x8c/0xd0
[ 5196.023900]  __arm64_sys_pwrite64+0x28/0x38
[ 5196.028064]  el0_svc_common+0xac/0x1e8
[ 5196.031797]  el0_svc_handler+0x38/0x78
[ 5196.035529]  el0_svc+0x8/0xc
[ 5196.038398] Code: f94006e0 f9400782 f9400741 f8686800 (f9402c00)
[ 5196.044464] ---[ end trace 3097304ac513d089 ]---
[ 5196.049059] Kernel panic - not syncing: Fatal exception

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