PID: 6702   TASK: ffff8ef88f730000  CPU: 1   COMMAND: "ll_ost_io00_000"
 #0 [ffffabe8022b7688] machine_kexec at ffffffff914850a3
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/kernel/machine_kexec_64.c: 417
 #1 [ffffabe8022b76e0] __crash_kexec at ffffffff9163e5ba
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/kernel/kexec_core.c: 955
 #2 [ffffabe8022b77a0] crash_kexec at ffffffff9163fc05
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/./include/linux/compiler.h: 356
 #3 [ffffabe8022b77b8] oops_end at ffffffff91437cb5
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/kernel/dumpstack.c: 339
 #4 [ffffabe8022b77d8] no_context.cold.27 at ffffffff914a1a56
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 796
 #5 [ffffabe8022b7830] __bad_area_nosemaphore at ffffffff914a0356
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 870
 #6 [ffffabe8022b7878] bad_area_nosemaphore at ffffffff914a06fa
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 877
 #7 [ffffabe8022b7880] do_user_addr_fault at ffffffff914a10c0
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1306
 #8 [ffffabe8022b78d0] __do_page_fault at ffffffff914a15bb
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1497
 #9 [ffffabe8022b78f0] do_page_fault at ffffffff914a1677
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1547
#10 [ffffabe8022b7920] page_fault at ffffffff92400f8e
    /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: ffffffffc073fe20  RSP: ffffabe8022b79d0  RFLAGS: 00010246
    RAX: 0000000000000000  RBX: ffff8ef787ffd728  RCX: 0000000000000001
    RDX: ffff8ef88fbeee00  RSI: 00000000b0000202  RDI: ffff8ef7851f6880
    RBP: 0000000000000001   R8: 0000000000000000   R9: 0000000000000000
    R10: ffff8ef89e3c8b40  R11: ffff8ef8c1cedcf8  R12: ffff8ef8babe8000
    R13: ffff8ef8b9de0000  R14: ffff8ef8babe8000  R15: 0000000000000000
    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018
#11 [ffffabe8022b79d0] osd_bufs_put at ffffffffc1e32d97 [osd_zfs]
    /home/green/git/lustre-release/lustre/osd-zfs/osd_io.c: 488
#12 [ffffabe8022b7a18] ofd_release_chunk_lnb at ffffffffc22e5ca2 [ofd]
    /home/green/git/lustre-release/lustre/include/dt_object.h: 2436
#13 [ffffabe8022b7a40] ofd_commitrw_write at ffffffffc22d2708 [ofd]
    /home/green/git/lustre-release/lustre/ofd/ofd_io.c: 1508
#14 [ffffabe8022b7ae0] ofd_commitrw at ffffffffc22d9ca9 [ofd]
    /home/green/git/lustre-release/lustre/ofd/ofd_io.c: 1633
#15 [ffffabe8022b7bb8] tgt_brw_write at ffffffffc164551c [ptlrpc]
    /home/green/git/lustre-release/lustre/include/obd_class.h: 1186
#16 [ffffabe8022b7d78] tgt_handle_request0 at ffffffffc163dcc7 [ptlrpc]
    /home/green/git/lustre-release/lustre/include/lu_target.h: 646
#17 [ffffabe8022b7da8] tgt_request_handle at ffffffffc163f965 [ptlrpc]
    /home/green/git/lustre-release/lustre/ptlrpc/../target/tgt_handler.c: 901
#18 [ffffabe8022b7e28] ptlrpc_server_handle_request at ffffffffc15379a3 [ptlrpc]
    /home/green/git/lustre-release/lustre/include/lustre_net.h: 2383
#19 [ffffabe8022b7e90] ptlrpc_main at ffffffffc153abc8 [ptlrpc]
    /home/green/git/lustre-release/lustre/ptlrpc/service.c: 3145
#20 [ffffabe8022b7f10] kthread at ffffffff91557041
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/kernel/kthread.c: 364
#21 [ffffabe8022b7f50] ret_from_fork at ffffffff924001ff
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/entry/entry_64.S: 330