PID: 4540 TASK: ffff88012b2f2220 CPU: 0 COMMAND: "umount" #0 [ffff880080ee3538] machine_kexec at ffffffff810613ae /home/green/bk/linux-3.10.0-1160.59.1.el7-debug/arch/x86/kernel/machine_kexec_64.c: 343 #1 [ffff880080ee3598] __crash_kexec at ffffffff811160a2 /home/green/bk/linux-3.10.0-1160.59.1.el7-debug/kernel/kexec_core.c: 897 #2 [ffff880080ee3668] crash_kexec at ffffffff81116190 /home/green/bk/linux-3.10.0-1160.59.1.el7-debug/./arch/x86/include/asm/atomic.h: 37 #3 [ffff880080ee3680] oops_end at ffffffff817eb798 /home/green/bk/linux-3.10.0-1160.59.1.el7-debug/arch/x86/kernel/dumpstack.c: 201 #4 [ffff880080ee36a8] die at ffffffff81030c0b /home/green/bk/linux-3.10.0-1160.59.1.el7-debug/arch/x86/kernel/dumpstack.c: 280 #5 [ffff880080ee36d8] do_general_protection at ffffffff817eb092 /home/green/bk/linux-3.10.0-1160.59.1.el7-debug/arch/x86/kernel/traps.c: 367 #6 [ffff880080ee3710] general_protection at ffffffff817ea718 /home/green/bk/linux-3.10.0-1160.59.1.el7-debug/arch/x86/kernel/entry_64.S: 1429 [exception RIP: __list_del_entry+41] RIP: ffffffff81414549 RSP: ffff880080ee37c8 RFLAGS: 00010007 RAX: 5a5a5a5a5a5a5a5a RBX: ffff8800accc9000 RCX: dead000000000200 RDX: 5a5a5a5a5a5a5a5a RSI: 0000000000000246 RDI: ffff8800accc9000 RBP: ffff880080ee37c8 R8: ffe2002b33200000 R9: 00000000000005de R10: 0000000000000000 R11: ffff880080ee3436 R12: 0000000000000296 R13: ffff880080ee3858 R14: ffffffff8232f620 R15: ffffffff81d09de0 ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018 /home/green/bk/linux-3.10.0-1160.59.1.el7-debug/lib/list_debug.c: 57 #7 [ffff880080ee37d0] list_del at ffffffff814145fd /home/green/bk/linux-3.10.0-1160.59.1.el7-debug/lib/list_debug.c: 78 #8 [ffff880080ee37e8] percpu_counter_destroy at ffffffff814211e4 /home/green/bk/linux-3.10.0-1160.59.1.el7-debug/include/linux/spinlock.h: 397 #9 [ffff880080ee3808] percpu_counter_fixup_free at ffffffff8142122d /home/green/bk/linux-3.10.0-1160.59.1.el7-debug/lib/percpu_counter.c: 29 #10 [ffff880080ee3820] debug_check_no_obj_freed at ffffffff81415af0 /home/green/bk/linux-3.10.0-1160.59.1.el7-debug/lib/debugobjects.c: 303 #11 [ffff880080ee3898] free_pages_prepare at ffffffff811bdda6 /home/green/bk/linux-3.10.0-1160.59.1.el7-debug/include/linux/mm.h: 2342 #12 [ffff880080ee38f8] __free_pages_ok at ffffffff811be279 /home/green/bk/linux-3.10.0-1160.59.1.el7-debug/mm/page_alloc.c: 996 #13 [ffff880080ee3920] __free_pages at ffffffff811bec7d /home/green/bk/linux-3.10.0-1160.59.1.el7-debug/mm/page_alloc.c: 3544 #14 [ffff880080ee3930] kfree at ffffffff8121de87 /home/green/bk/linux-3.10.0-1160.59.1.el7-debug/mm/slub.c: 3777 #15 [ffff880080ee3960] osd_device_free at ffffffffa124d20a [osd_zfs] /home/green/git/lustre-release/libcfs/include/libcfs/libcfs_debug.h: 126 #16 [ffff880080ee3980] lu_object_fini at ffffffffa05c932e [obdclass] /home/green/git/lustre-release/lustre/include/lu_object.h: 414 #17 [ffff880080ee39a0] dt_object_fini at ffffffffa05cd82e [obdclass] /home/green/git/lustre-release/lustre/obdclass/dt_object.c: 168 #18 [ffff880080ee39b0] osd_object_free at ffffffffa125551f [osd_zfs] /home/green/git/lustre-release/lustre/osd-zfs/osd_object.c: 686 #19 [ffff880080ee39d0] lu_object_free at ffffffffa05c75dd [obdclass] /home/green/git/lustre-release/lustre/obdclass/lu_object.c: 397 #20 [ffff880080ee3a30] lu_object_put at ffffffffa05cbbc1 [obdclass] /home/green/git/lustre-release/lustre/obdclass/lu_object.c: 246 #21 [ffff880080ee3a88] lu_object_put_nocache at ffffffffa05cbfe6 [obdclass] /home/green/git/lustre-release/lustre/obdclass/lu_object.c: 257 #22 [ffff880080ee3a98] osd_scrub_cleanup at ffffffffa127f57d [osd_zfs] /home/green/git/lustre-release/lustre/osd-zfs/osd_scrub.c: 1472 #23 [ffff880080ee3ab8] osd_device_fini at ffffffffa124db61 [osd_zfs] /home/green/git/lustre-release/lustre/osd-zfs/osd_handler.c: 1324 #24 [ffff880080ee3ae8] obd_precleanup at ffffffffa05af8e3 [obdclass] /home/green/bk/linux-3.10.0-1160.59.1.el7-debug/./arch/x86/include/asm/atomic.h: 25 #25 [ffff880080ee3b58] class_cleanup at ffffffffa05b55cd [obdclass] /home/green/git/lustre-release/lustre/obdclass/obd_config.c: 906 #26 [ffff880080ee3bd8] class_process_config at ffffffffa05b6227 [obdclass] /home/green/git/lustre-release/libcfs/include/libcfs/libcfs_debug.h: 126 #27 [ffff880080ee3c88] class_manual_cleanup at ffffffffa05b867e [obdclass] /home/green/git/lustre-release/lustre/obdclass/obd_config.c: 2370 #28 [ffff880080ee3d38] osd_obd_disconnect at ffffffffa124cea5 [osd_zfs] /home/green/git/lustre-release/lustre/osd-zfs/osd_handler.c: 1514 #29 [ffff880080ee3d68] lustre_put_lsi_free at ffffffffa05befed [obdclass] /home/green/git/lustre-release/libcfs/include/libcfs/libcfs_debug.h: 126 #30 [ffff880080ee3d90] lustre_put_lsi at ffffffffa05bf3f5 [obdclass] /home/green/git/lustre-release/libcfs/include/libcfs/libcfs_debug.h: 126 #31 [ffff880080ee3db0] server_put_super at ffffffffa090cc49 [ptlrpc] /home/green/git/lustre-release/lustre/ptlrpc/../../lustre/target/tgt_mount.c: 1778 #32 [ffff880080ee3e40] generic_shutdown_super at ffffffff812476ca /home/green/bk/linux-3.10.0-1160.59.1.el7-debug/fs/super.c: 401 #33 [ffff880080ee3e60] kill_anon_super at ffffffff81247ac2 /home/green/bk/linux-3.10.0-1160.59.1.el7-debug/fs/super.c: 961 #34 [ffff880080ee3e78] lustre_kill_super at ffffffffa15ed76b [lustre] /home/green/git/lustre-release/lustre/llite/super25.c: 213 #35 [ffff880080ee3e90] deactivate_locked_super at ffffffff81247ec9 /home/green/bk/linux-3.10.0-1160.59.1.el7-debug/fs/super.c: 277 #36 [ffff880080ee3eb0] deactivate_super at ffffffff81248616 /home/green/bk/linux-3.10.0-1160.59.1.el7-debug/fs/super.c: 298 #37 [ffff880080ee3ec8] cleanup_mnt at ffffffff81268b1f /home/green/bk/linux-3.10.0-1160.59.1.el7-debug/fs/namespace.c: 1172 #38 [ffff880080ee3ee0] __cleanup_mnt at ffffffff81268bb2 /home/green/bk/linux-3.10.0-1160.59.1.el7-debug/fs/namespace.c: 1179 #39 [ffff880080ee3ef0] task_work_run at ffffffff810b69b5 /home/green/bk/linux-3.10.0-1160.59.1.el7-debug/kernel/task_work.c: 89 #40 [ffff880080ee3f30] do_notify_resume at ffffffff8102ccb2 /home/green/bk/linux-3.10.0-1160.59.1.el7-debug/include/linux/tracehook.h: 196 #41 [ffff880080ee3f50] int_signal at ffffffff817f4363 /home/green/bk/linux-3.10.0-1160.59.1.el7-debug/arch/x86/kernel/entry_64.S: 701 RIP: 00007fc3ede0fba7 RSP: 00007fffa2870d78 RFLAGS: 00000206 RAX: 0000000000000000 RBX: 0000555896168040 RCX: ffffffffffffffff RDX: 0000000000000001 RSI: 0000000000000001 RDI: 00005558961711b0 RBP: 00005558961711b0 R8: 003173646d2d6572 R9: 0000000000000011 R10: 00007fffa28707e0 R11: 0000000000000206 R12: 00007fc3ee98dd78 R13: 0000000000000001 R14: 0000555896168210 R15: 0000555896168040 ORIG_RAX: 00000000000000a6 CS: 0033 SS: 002b