PID: 8071   TASK: ffff8b51d0314f80  CPU: 2   COMMAND: "ll_ost_io00_002"
 #0 [ffff9c99c1c97688] machine_kexec at ffffffffada850a3
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/kernel/machine_kexec_64.c: 417
 #1 [ffff9c99c1c976e0] __crash_kexec at ffffffffadc3e5ba
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/kernel/kexec_core.c: 955
 #2 [ffff9c99c1c977a0] crash_kexec at ffffffffadc3fc05
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/./include/linux/compiler.h: 356
 #3 [ffff9c99c1c977b8] oops_end at ffffffffada37cb5
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/kernel/dumpstack.c: 339
 #4 [ffff9c99c1c977d8] no_context.cold.27 at ffffffffadaa1a56
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 796
 #5 [ffff9c99c1c97830] __bad_area_nosemaphore at ffffffffadaa0356
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 870
 #6 [ffff9c99c1c97878] bad_area_nosemaphore at ffffffffadaa06fa
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 877
 #7 [ffff9c99c1c97880] do_user_addr_fault at ffffffffadaa10c0
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1306
 #8 [ffff9c99c1c978d0] __do_page_fault at ffffffffadaa15bb
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1497
 #9 [ffff9c99c1c978f0] do_page_fault at ffffffffadaa1677
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1547
#10 [ffff9c99c1c97920] page_fault at ffffffffaea00f8e
    /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: ffffffffc08efe20  RSP: ffff9c99c1c979d0  RFLAGS: 00010246
    RAX: 0000000000000000  RBX: ffff8b50c8e848e8  RCX: 0000000000000010
    RDX: ffff8b51f7a91400  RSI: 00000000b0000202  RDI: ffff8b51c4809f00
    RBP: 0000000000000010   R8: 0000000000000000   R9: 0000000000000000
    R10: ffff8b52010dfd80  R11: ffff8b51efed3310  R12: ffff8b51f52f0000
    R13: ffff8b51f6360000  R14: ffff8b51f52f0000  R15: 0000000000000000
    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018
#11 [ffff9c99c1c979d0] osd_bufs_put at ffffffffc1fe9d97 [osd_zfs]
    /home/green/git/lustre-release/lustre/osd-zfs/osd_io.c: 488
#12 [ffff9c99c1c97a18] ofd_release_chunk_lnb at ffffffffc24a1652 [ofd]
    /home/green/git/lustre-release/lustre/include/dt_object.h: 2436
#13 [ffff9c99c1c97a40] ofd_commitrw_write at ffffffffc248e018 [ofd]
    /home/green/git/lustre-release/lustre/ofd/ofd_io.c: 1508
#14 [ffff9c99c1c97ae0] ofd_commitrw at ffffffffc249557c [ofd]
    /home/green/git/lustre-release/lustre/ofd/ofd_io.c: 1633
#15 [ffff9c99c1c97bb8] tgt_brw_write at ffffffffc183056c [ptlrpc]
    /home/green/git/lustre-release/lustre/include/obd_class.h: 1186
#16 [ffff9c99c1c97d78] tgt_handle_request0 at ffffffffc1828d17 [ptlrpc]
    /home/green/git/lustre-release/lustre/include/lu_target.h: 646
#17 [ffff9c99c1c97da8] tgt_request_handle at ffffffffc182a9b5 [ptlrpc]
    /home/green/git/lustre-release/lustre/ptlrpc/../target/tgt_handler.c: 901
#18 [ffff9c99c1c97e28] ptlrpc_server_handle_request at ffffffffc17229e3 [ptlrpc]
    /home/green/git/lustre-release/lustre/include/lustre_net.h: 2383
#19 [ffff9c99c1c97e90] ptlrpc_main at ffffffffc1725c08 [ptlrpc]
    /home/green/git/lustre-release/lustre/ptlrpc/service.c: 3145
#20 [ffff9c99c1c97f10] kthread at ffffffffadb57041
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/kernel/kthread.c: 364
#21 [ffff9c99c1c97f50] ret_from_fork at ffffffffaea001ff
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/entry/entry_64.S: 330