PID: 6696   TASK: ffff91d4d2f24f80  CPU: 3   COMMAND: "ll_ost_io00_002"
 #0 [ffffaffe4303f678] machine_kexec at ffffffff966850a3
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/kernel/machine_kexec_64.c: 417
 #1 [ffffaffe4303f6d0] __crash_kexec at ffffffff9683e5ba
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/kernel/kexec_core.c: 955
 #2 [ffffaffe4303f790] crash_kexec at ffffffff9683fc05
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/./include/linux/compiler.h: 356
 #3 [ffffaffe4303f7a8] oops_end at ffffffff96637cb5
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/kernel/dumpstack.c: 339
 #4 [ffffaffe4303f7c8] no_context.cold.27 at ffffffff966a1a56
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 796
 #5 [ffffaffe4303f820] __bad_area_nosemaphore at ffffffff966a0356
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 870
 #6 [ffffaffe4303f868] bad_area_nosemaphore at ffffffff966a06fa
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 877
 #7 [ffffaffe4303f870] do_user_addr_fault at ffffffff966a10c0
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1306
 #8 [ffffaffe4303f8c0] __do_page_fault at ffffffff966a15bb
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1497
 #9 [ffffaffe4303f8e0] do_page_fault at ffffffff966a1677
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1547
#10 [ffffaffe4303f910] page_fault at ffffffff97600f8e
    /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: ffffffffc06cee20  RSP: ffffaffe4303f9c0  RFLAGS: 00010246
    RAX: 0000000000000000  RBX: ffff91d4c652eab0  RCX: 0000000000000002
    RDX: ffff91d4c6543000  RSI: 00000000b0000202  RDI: ffff91d3c30db3c0
    RBP: 0000000000000002   R8: 0000000000000000   R9: 0000000000000000
    R10: ffff91d4ca8bbf00  R11: ffff91d4e7059bc8  R12: ffff91d4c9288000
    R13: ffff91d501520000  R14: ffff91d4c9288000  R15: 0000000000000000
    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018
#11 [ffffaffe4303f9c0] osd_bufs_put at ffffffffc1dbfd97 [osd_zfs]
    /home/green/git/lustre-release/lustre/osd-zfs/osd_io.c: 488
#12 [ffffaffe4303fa08] ofd_release_chunk_lnb at ffffffffc2273882 [ofd]
    /home/green/git/lustre-release/lustre/include/dt_object.h: 2436
#13 [ffffaffe4303fa30] ofd_commitrw_write at ffffffffc225f376 [ofd]
    /home/green/git/lustre-release/lustre/ofd/ofd_io.c: 1761
#14 [ffffaffe4303fad0] ofd_commitrw at ffffffffc226707c [ofd]
    /home/green/git/lustre-release/lustre/ofd/ofd_io.c: 1885
#15 [ffffaffe4303fba8] tgt_brw_write at ffffffffc15d2588 [ptlrpc]
    /home/green/git/lustre-release/lustre/include/obd_class.h: 1189
#16 [ffffaffe4303fd78] tgt_handle_request0 at ffffffffc15cabf7 [ptlrpc]
    /home/green/git/lustre-release/lustre/include/lu_target.h: 644
#17 [ffffaffe4303fda8] tgt_request_handle at ffffffffc15cc895 [ptlrpc]
    /home/green/git/lustre-release/lustre/ptlrpc/../target/tgt_handler.c: 901
#18 [ffffaffe4303fe28] ptlrpc_server_handle_request at ffffffffc14c49a3 [ptlrpc]
    /home/green/git/lustre-release/lustre/include/lustre_net.h: 2383
#19 [ffffaffe4303fe90] ptlrpc_main at ffffffffc14c7bc8 [ptlrpc]
    /home/green/git/lustre-release/lustre/ptlrpc/service.c: 3145
#20 [ffffaffe4303ff10] kthread at ffffffff96757041
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/kernel/kthread.c: 364
#21 [ffffaffe4303ff50] ret_from_fork at ffffffff976001ff
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/entry/entry_64.S: 330