PID: 6679   TASK: ffff9a84b75227c0  CPU: 2   COMMAND: "ll_ost_io00_000"
 #0 [ffffbff542257688] machine_kexec at ffffffffb12850a3
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/kernel/machine_kexec_64.c: 417
 #1 [ffffbff5422576e0] __crash_kexec at ffffffffb143e5ba
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/kernel/kexec_core.c: 955
 #2 [ffffbff5422577a0] crash_kexec at ffffffffb143fc05
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/./include/linux/compiler.h: 356
 #3 [ffffbff5422577b8] oops_end at ffffffffb1237cb5
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/kernel/dumpstack.c: 339
 #4 [ffffbff5422577d8] no_context.cold.27 at ffffffffb12a1a56
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 796
 #5 [ffffbff542257830] __bad_area_nosemaphore at ffffffffb12a0356
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 870
 #6 [ffffbff542257878] bad_area_nosemaphore at ffffffffb12a06fa
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 877
 #7 [ffffbff542257880] do_user_addr_fault at ffffffffb12a10c0
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1306
 #8 [ffffbff5422578d0] __do_page_fault at ffffffffb12a15bb
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1497
 #9 [ffffbff5422578f0] do_page_fault at ffffffffb12a1677
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1547
#10 [ffffbff542257920] page_fault at ffffffffb2200f8e
    /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: ffffffffc059ee20  RSP: ffffbff5422579d0  RFLAGS: 00010246
    RAX: 0000000000000000  RBX: ffff9a84bcc0cab0  RCX: 0000000000000001
    RDX: ffff9a84b76b3200  RSI: 00000000b0000202  RDI: ffff9a83864563c0
    RBP: 0000000000000001   R8: 0000000000000001   R9: 0000000000000000
    R10: ffff9a8490510180  R11: ffff9a8385455850  R12: ffff9a84b7e54000
    R13: ffff9a84bcd80000  R14: ffff9a84b7e54000  R15: 0000000000000000
    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018
#11 [ffffbff5422579d0] osd_bufs_put at ffffffffc1c91d97 [osd_zfs]
    /home/green/git/lustre-release/lustre/osd-zfs/osd_io.c: 488
#12 [ffffbff542257a18] ofd_release_chunk_lnb at ffffffffc2144ca2 [ofd]
    /home/green/git/lustre-release/lustre/include/dt_object.h: 2436
#13 [ffffbff542257a40] ofd_commitrw_write at ffffffffc2131708 [ofd]
    /home/green/git/lustre-release/lustre/ofd/ofd_io.c: 1508
#14 [ffffbff542257ae0] ofd_commitrw at ffffffffc2138ca9 [ofd]
    /home/green/git/lustre-release/lustre/ofd/ofd_io.c: 1633
#15 [ffffbff542257bb8] tgt_brw_write at ffffffffc14a451c [ptlrpc]
    /home/green/git/lustre-release/lustre/include/obd_class.h: 1186
#16 [ffffbff542257d78] tgt_handle_request0 at ffffffffc149ccc7 [ptlrpc]
    /home/green/git/lustre-release/lustre/include/lu_target.h: 646
#17 [ffffbff542257da8] tgt_request_handle at ffffffffc149e965 [ptlrpc]
    /home/green/git/lustre-release/lustre/ptlrpc/../target/tgt_handler.c: 901
#18 [ffffbff542257e28] ptlrpc_server_handle_request at ffffffffc13969a3 [ptlrpc]
    /home/green/git/lustre-release/lustre/include/lustre_net.h: 2383
#19 [ffffbff542257e90] ptlrpc_main at ffffffffc1399bc8 [ptlrpc]
    /home/green/git/lustre-release/lustre/ptlrpc/service.c: 3145
#20 [ffffbff542257f10] kthread at ffffffffb1357041
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/kernel/kthread.c: 364
#21 [ffffbff542257f50] ret_from_fork at ffffffffb22001ff
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/entry/entry_64.S: 330