PID: 99607  TASK: ffff9896f2f98000  CPU: 1   COMMAND: "ll_ost_io00_010"
 #0 [ffffb58b814fb688] machine_kexec at ffffffff9c4850a3
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/kernel/machine_kexec_64.c: 417
 #1 [ffffb58b814fb6e0] __crash_kexec at ffffffff9c63e5ba
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/kernel/kexec_core.c: 955
 #2 [ffffb58b814fb7a0] crash_kexec at ffffffff9c63fc05
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/./include/linux/compiler.h: 356
 #3 [ffffb58b814fb7b8] oops_end at ffffffff9c437cb5
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/kernel/dumpstack.c: 339
 #4 [ffffb58b814fb7d8] no_context.cold.27 at ffffffff9c4a1a56
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 796
 #5 [ffffb58b814fb830] __bad_area_nosemaphore at ffffffff9c4a0356
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 870
 #6 [ffffb58b814fb878] bad_area_nosemaphore at ffffffff9c4a06fa
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 877
 #7 [ffffb58b814fb880] do_user_addr_fault at ffffffff9c4a10c0
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1306
 #8 [ffffb58b814fb8d0] __do_page_fault at ffffffff9c4a15bb
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1497
 #9 [ffffb58b814fb8f0] do_page_fault at ffffffff9c4a1677
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1547
#10 [ffffb58b814fb920] page_fault at ffffffff9d400f8e
    /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: ffffffffc081ce20  RSP: ffffb58b814fb9d0  RFLAGS: 00010246
    RAX: 0000000000000000  RBX: ffff9895c750ac78  RCX: 0000000000000007
    RDX: ffff9895d21e3600  RSI: 00000000b0000202  RDI: ffff9896c50369c0
    RBP: 0000000000000007   R8: ffff9895c3dcff7d   R9: 0000000000000000
    R10: 00000000bae08899  R11: ffff9895c3dd0000  R12: ffff9895c7ede000
    R13: ffff9896fbf00000  R14: ffff9895c7ede000  R15: 0000000000000000
    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018
#11 [ffffb58b814fb9d0] osd_bufs_put at ffffffffc1f15d97 [osd_zfs]
    /home/green/git/lustre-release/lustre/osd-zfs/osd_io.c: 488
#12 [ffffb58b814fba18] ofd_release_chunk_lnb at ffffffffc23cb652 [ofd]
    /home/green/git/lustre-release/lustre/include/dt_object.h: 2436
#13 [ffffb58b814fba40] ofd_commitrw_write at ffffffffc23b8018 [ofd]
    /home/green/git/lustre-release/lustre/ofd/ofd_io.c: 1508
#14 [ffffb58b814fbae0] ofd_commitrw at ffffffffc23bf57c [ofd]
    /home/green/git/lustre-release/lustre/ofd/ofd_io.c: 1633
#15 [ffffb58b814fbbb8] tgt_brw_write at ffffffffc175d55c [ptlrpc]
    /home/green/git/lustre-release/lustre/include/obd_class.h: 1186
#16 [ffffb58b814fbd78] tgt_handle_request0 at ffffffffc1755d07 [ptlrpc]
    /home/green/git/lustre-release/lustre/include/lu_target.h: 646
#17 [ffffb58b814fbda8] tgt_request_handle at ffffffffc17579a5 [ptlrpc]
    /home/green/git/lustre-release/lustre/ptlrpc/../target/tgt_handler.c: 901
#18 [ffffb58b814fbe28] ptlrpc_server_handle_request at ffffffffc164f9e3 [ptlrpc]
    /home/green/git/lustre-release/lustre/include/lustre_net.h: 2383
#19 [ffffb58b814fbe90] ptlrpc_main at ffffffffc1652c08 [ptlrpc]
    /home/green/git/lustre-release/lustre/ptlrpc/service.c: 3145
#20 [ffffb58b814fbf10] kthread at ffffffff9c557041
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/kernel/kthread.c: 364
#21 [ffffb58b814fbf50] ret_from_fork at ffffffff9d4001ff
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/entry/entry_64.S: 330