PID: 38255  TASK: ffff960d49660000  CPU: 2   COMMAND: "ll_ost_io00_007"
 #0 [ffffa4aa841bf688] machine_kexec at ffffffffa46850a3
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/kernel/machine_kexec_64.c: 417
 #1 [ffffa4aa841bf6e0] __crash_kexec at ffffffffa483e5ba
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/kernel/kexec_core.c: 955
 #2 [ffffa4aa841bf7a0] crash_kexec at ffffffffa483fc05
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/./include/linux/compiler.h: 356
 #3 [ffffa4aa841bf7b8] oops_end at ffffffffa4637cb5
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/kernel/dumpstack.c: 339
 #4 [ffffa4aa841bf7d8] no_context.cold.27 at ffffffffa46a1a56
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 796
 #5 [ffffa4aa841bf830] __bad_area_nosemaphore at ffffffffa46a0356
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 870
 #6 [ffffa4aa841bf878] bad_area_nosemaphore at ffffffffa46a06fa
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 877
 #7 [ffffa4aa841bf880] do_user_addr_fault at ffffffffa46a10c0
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1306
 #8 [ffffa4aa841bf8d0] __do_page_fault at ffffffffa46a15bb
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1497
 #9 [ffffa4aa841bf8f0] do_page_fault at ffffffffa46a1677
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1547
#10 [ffffa4aa841bf920] page_fault at ffffffffa5600f8e
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/entry/entry_64.S: 1236
    [exception RIP: arc_buf_size+32]
    RIP: ffffffffc064de20  RSP: ffffa4aa841bf9d0  RFLAGS: 00010246
    RAX: 0000000000000000  RBX: ffff960e81ef2ab0  RCX: 0000000000000007
    RDX: ffff960d49021e00  RSI: 00000000b0000202  RDI: ffff960e50db13c0
    RBP: 0000000000000007   R8: ffff960e7b6f40bf   R9: 0000000000000000
    R10: 00000000bd9070ee  R11: ffff960e7b6f5000  R12: ffff960e70e0c000
    R13: ffff960d47000000  R14: ffff960e70e0c000  R15: 0000000000000000
    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018
#11 [ffffa4aa841bf9d0] osd_bufs_put at ffffffffc1d45d97 [osd_zfs]
    /home/green/git/lustre-release/lustre/osd-zfs/osd_io.c: 488
#12 [ffffa4aa841bfa18] ofd_release_chunk_lnb at ffffffffc21fd712 [ofd]
    /home/green/git/lustre-release/lustre/include/dt_object.h: 2436
#13 [ffffa4aa841bfa40] ofd_commitrw_write at ffffffffc21ea0d8 [ofd]
    /home/green/git/lustre-release/lustre/ofd/ofd_io.c: 1508
#14 [ffffa4aa841bfae0] ofd_commitrw at ffffffffc21f163c [ofd]
    /home/green/git/lustre-release/lustre/ofd/ofd_io.c: 1633
#15 [ffffa4aa841bfbb8] tgt_brw_write at ffffffffc155656c [ptlrpc]
    /home/green/git/lustre-release/lustre/include/obd_class.h: 1186
#16 [ffffa4aa841bfd78] tgt_handle_request0 at ffffffffc154ed17 [ptlrpc]
    /home/green/git/lustre-release/lustre/include/lu_target.h: 646
#17 [ffffa4aa841bfda8] tgt_request_handle at ffffffffc15509b5 [ptlrpc]
    /home/green/git/lustre-release/lustre/ptlrpc/../target/tgt_handler.c: 901
#18 [ffffa4aa841bfe28] ptlrpc_server_handle_request at ffffffffc14489e3 [ptlrpc]
    /home/green/git/lustre-release/lustre/include/lustre_net.h: 2383
#19 [ffffa4aa841bfe90] ptlrpc_main at ffffffffc144bc08 [ptlrpc]
    /home/green/git/lustre-release/lustre/ptlrpc/service.c: 3145
#20 [ffffa4aa841bff10] kthread at ffffffffa4757041
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/kernel/kthread.c: 364
#21 [ffffa4aa841bff50] ret_from_fork at ffffffffa56001ff
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/entry/entry_64.S: 330