PID: 6708   TASK: ffff9fedd3484f80  CPU: 3   COMMAND: "ll_ost_io00_002"
 #0 [ffffbfb902be3678] machine_kexec at ffffffff9c4850a3
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/kernel/machine_kexec_64.c: 417
 #1 [ffffbfb902be36d0] __crash_kexec at ffffffff9c63e5ba
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/kernel/kexec_core.c: 955
 #2 [ffffbfb902be3790] crash_kexec at ffffffff9c63fc05
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/./include/linux/compiler.h: 356
 #3 [ffffbfb902be37a8] oops_end at ffffffff9c437cb5
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/kernel/dumpstack.c: 339
 #4 [ffffbfb902be37c8] no_context.cold.27 at ffffffff9c4a1a56
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 796
 #5 [ffffbfb902be3820] __bad_area_nosemaphore at ffffffff9c4a0356
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 870
 #6 [ffffbfb902be3868] bad_area_nosemaphore at ffffffff9c4a06fa
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 877
 #7 [ffffbfb902be3870] do_user_addr_fault at ffffffff9c4a10c0
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1306
 #8 [ffffbfb902be38c0] __do_page_fault at ffffffff9c4a15bb
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1497
 #9 [ffffbfb902be38e0] do_page_fault at ffffffff9c4a1677
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1547
#10 [ffffbfb902be3910] page_fault at ffffffff9d400f8e
    /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: ffffffffc088ee20  RSP: ffffbfb902be39c0  RFLAGS: 00010246
    RAX: 0000000000000000  RBX: ffff9fedc9c1cab0  RCX: 0000000000000002
    RDX: ffff9fedce857400  RSI: 00000000b0000202  RDI: ffff9fedc2eab140
    RBP: 0000000000000002   R8: 0000000000000000   R9: 0000000000000000
    R10: ffff9fedc9993600  R11: ffff9fecc5457440  R12: ffff9fedef900000
    R13: ffff9fedfc080000  R14: ffff9fedef900000  R15: 0000000000000000
    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018
#11 [ffffbfb902be39c0] osd_bufs_put at ffffffffc1f7fd97 [osd_zfs]
    /home/green/git/lustre-release/lustre/osd-zfs/osd_io.c: 488
#12 [ffffbfb902be3a08] ofd_release_chunk_lnb at ffffffffc2433882 [ofd]
    /home/green/git/lustre-release/lustre/include/dt_object.h: 2436
#13 [ffffbfb902be3a30] ofd_commitrw_write at ffffffffc241f376 [ofd]
    /home/green/git/lustre-release/lustre/ofd/ofd_io.c: 1761
#14 [ffffbfb902be3ad0] ofd_commitrw at ffffffffc242707c [ofd]
    /home/green/git/lustre-release/lustre/ofd/ofd_io.c: 1885
#15 [ffffbfb902be3ba8] tgt_brw_write at ffffffffc1792588 [ptlrpc]
    /home/green/git/lustre-release/lustre/include/obd_class.h: 1189
#16 [ffffbfb902be3d78] tgt_handle_request0 at ffffffffc178abf7 [ptlrpc]
    /home/green/git/lustre-release/lustre/include/lu_target.h: 644
#17 [ffffbfb902be3da8] tgt_request_handle at ffffffffc178c895 [ptlrpc]
    /home/green/git/lustre-release/lustre/ptlrpc/../target/tgt_handler.c: 901
#18 [ffffbfb902be3e28] ptlrpc_server_handle_request at ffffffffc16849a3 [ptlrpc]
    /home/green/git/lustre-release/lustre/include/lustre_net.h: 2383
#19 [ffffbfb902be3e90] ptlrpc_main at ffffffffc1687bc8 [ptlrpc]
    /home/green/git/lustre-release/lustre/ptlrpc/service.c: 3145
#20 [ffffbfb902be3f10] kthread at ffffffff9c557041
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/kernel/kthread.c: 364
#21 [ffffbfb902be3f50] ret_from_fork at ffffffff9d4001ff
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/entry/entry_64.S: 330