PID: 6720   TASK: ffff9f7d7ceb4f80  CPU: 1   COMMAND: "ll_ost_io00_002"
 #0 [ffffbd6ac2b27688] machine_kexec at ffffffff9a6850a3
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/kernel/machine_kexec_64.c: 417
 #1 [ffffbd6ac2b276e0] __crash_kexec at ffffffff9a83e5ba
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/kernel/kexec_core.c: 955
 #2 [ffffbd6ac2b277a0] crash_kexec at ffffffff9a83fc05
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/./include/linux/compiler.h: 356
 #3 [ffffbd6ac2b277b8] oops_end at ffffffff9a637cb5
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/kernel/dumpstack.c: 339
 #4 [ffffbd6ac2b277d8] no_context.cold.27 at ffffffff9a6a1a56
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 796
 #5 [ffffbd6ac2b27830] __bad_area_nosemaphore at ffffffff9a6a0356
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 870
 #6 [ffffbd6ac2b27878] bad_area_nosemaphore at ffffffff9a6a06fa
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 877
 #7 [ffffbd6ac2b27880] do_user_addr_fault at ffffffff9a6a10c0
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1306
 #8 [ffffbd6ac2b278d0] __do_page_fault at ffffffff9a6a15bb
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1497
 #9 [ffffbd6ac2b278f0] do_page_fault at ffffffff9a6a1677
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1547
#10 [ffffbd6ac2b27920] page_fault at ffffffff9b600f8e
    /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: ffffffffc05a4e20  RSP: ffffbd6ac2b279d0  RFLAGS: 00010246
    RAX: 0000000000000000  RBX: ffff9f7d46641ab8  RCX: 0000000000000007
    RDX: ffff9f7d7ceab200  RSI: 00000000b0000202  RDI: ffff9f7c4bba8080
    RBP: 0000000000000007   R8: ffff9f7d7a297f7d   R9: 0000000000000000
    R10: 00000000bd789b5c  R11: ffff9f7d7a298000  R12: ffff9f7c54f8c000
    R13: ffff9f7d527c0000  R14: ffff9f7c54f8c000  R15: 0000000000000000
    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018
#11 [ffffbd6ac2b279d0] osd_bufs_put at ffffffffc1c9bd97 [osd_zfs]
    /home/green/git/lustre-release/lustre/osd-zfs/osd_io.c: 488
#12 [ffffbd6ac2b27a18] ofd_release_chunk_lnb at ffffffffc2153652 [ofd]
    /home/green/git/lustre-release/lustre/include/dt_object.h: 2436
#13 [ffffbd6ac2b27a40] ofd_commitrw_write at ffffffffc2140018 [ofd]
    /home/green/git/lustre-release/lustre/ofd/ofd_io.c: 1508
#14 [ffffbd6ac2b27ae0] ofd_commitrw at ffffffffc214757c [ofd]
    /home/green/git/lustre-release/lustre/ofd/ofd_io.c: 1633
#15 [ffffbd6ac2b27bb8] tgt_brw_write at ffffffffc14ad55c [ptlrpc]
    /home/green/git/lustre-release/lustre/include/obd_class.h: 1186
#16 [ffffbd6ac2b27d78] tgt_handle_request0 at ffffffffc14a5d07 [ptlrpc]
    /home/green/git/lustre-release/lustre/include/lu_target.h: 646
#17 [ffffbd6ac2b27da8] tgt_request_handle at ffffffffc14a79a5 [ptlrpc]
    /home/green/git/lustre-release/lustre/ptlrpc/../target/tgt_handler.c: 901
#18 [ffffbd6ac2b27e28] ptlrpc_server_handle_request at ffffffffc139f9e3 [ptlrpc]
    /home/green/git/lustre-release/lustre/include/lustre_net.h: 2383
#19 [ffffbd6ac2b27e90] ptlrpc_main at ffffffffc13a2c08 [ptlrpc]
    /home/green/git/lustre-release/lustre/ptlrpc/service.c: 3145
#20 [ffffbd6ac2b27f10] kthread at ffffffff9a757041
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/kernel/kthread.c: 364
#21 [ffffbd6ac2b27f50] ret_from_fork at ffffffff9b6001ff
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/entry/entry_64.S: 330