enable kdump service on beaglebone black, but after reboot still get kernel panic.

I enable kdump-tools service with debian bull
after I insmod oops.ko to trigger crash capture, the kernel reboot success but still get in kernel panic as below:

[   10.460384] df00: 0000013e c12d461c c1400560 c1211200 00000000 00000006 00000006 c18cc000                                                                         [0/47037]
[   10.468600] df20: 00000000 c114b0d8 c113eb14 c113eac8 0000013e c189e132 c189e136 473957b1
[   10.476816] df40: 00000000 00000158 00000007 473957b1 c147defc 00000007 c189e000 c145d834
[   10.485032] df60: 00000158 c14013cc 00000006 00000006 00000000 c1400560 c0edf0d4 c1400560
[   10.493248] df80: 00000000 00000000 c0edf0d4 00000000 00000000 00000000 00000000 00000000
[   10.501464] dfa0: 00000000 c0edf0dc 00000000 c0100148 00000000 00000000 00000000 00000000
[   10.509680] dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[   10.517896] dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 00000000 00000000
[   10.526137] [<c0ab4740>] (cpts_fifo_read) from [<c0abc3c0>] (cpsw_misc_interrupt+0x30/0x4c)
[   10.534536] [<c0abc3c0>] (cpsw_misc_interrupt) from [<c01afba8>] (__handle_irq_event_percpu+0x5c/0x25c)
[   10.543977] [<c01afba8>] (__handle_irq_event_percpu) from [<c01afe84>] (handle_irq_event+0x5c/0xc4)
[   10.553071] [<c01afe84>] (handle_irq_event) from [<c01b4504>] (handle_level_irq+0xd0/0x1c0)
[   10.561465] [<c01b4504>] (handle_level_irq) from [<c01af414>] (__handle_domain_irq+0xa0/0x10c)
[   10.570121] [<c01af414>] (__handle_domain_irq) from [<c0100b8c>] (__irq_svc+0x6c/0xa8)
[   10.578071] Exception stack(0xc18cdce0 to 0xc18cdd28)
[   10.583148] dce0: c371bb6c 600e0013 00000000 00000005 c371bb00 00000000 c393be40 00000038
[   10.591365] dd00: 600e0013 c371bbd4 c371bb6c c3935000 00000000 c18cdd30 c01b1cf8 c0ee641c
[   10.599577] dd20: 600e0013 ffffffff
[   10.603089] [<c0100b8c>] (__irq_svc) from [<c0ee641c>] (_raw_spin_unlock_irqrestore+0x20/0x54)
[   10.611746] [<c0ee641c>] (_raw_spin_unlock_irqrestore) from [<c01b1cf8>] (__setup_irq+0x378/0x868)
[   10.620748] [<c01b1cf8>] (__setup_irq) from [<c01b22cc>] (request_threaded_irq+0xe4/0x15c)
[   10.629055] [<c01b22cc>] (request_threaded_irq) from [<c01b6118>] (devm_request_threaded_irq+0x64/0xb8)
[   10.638495] [<c01b6118>] (devm_request_threaded_irq) from [<c0ab6ffc>] (cpsw_probe+0x8ac/0xd80)
[   10.647243] [<c0ab6ffc>] (cpsw_probe) from [<c09e65cc>] (platform_drv_probe+0x48/0x9c)
[   10.655200] [<c09e65cc>] (platform_drv_probe) from [<c09e3d0c>] (really_probe+0x108/0x514)
[   10.663504] [<c09e3d0c>] (really_probe) from [<c09e44f0>] (driver_probe_device+0x78/0x1d4)
[   10.671808] [<c09e44f0>] (driver_probe_device) from [<c09e4958>] (device_driver_attach+0xa8/0xb0)
[   10.680721] [<c09e4958>] (device_driver_attach) from [<c09e4a50>] (__driver_attach+0xf0/0x15c)
[   10.689384] [<c09e4a50>] (__driver_attach) from [<c09e18c8>] (bus_for_each_dev+0x78/0xb8)
[   10.697602] [<c09e18c8>] (bus_for_each_dev) from [<c09e2ef0>] (bus_add_driver+0x110/0x214)
[   10.705906] [<c09e2ef0>] (bus_add_driver) from [<c09e55a8>] (driver_register+0x8c/0x124)
[   10.714038] [<c09e55a8>] (driver_register) from [<c01021a4>] (do_one_initcall+0x50/0x2b8)
[   10.722262] [<c01021a4>] (do_one_initcall) from [<c14013cc>] (kernel_init_freeable+0x248/0x2a8)
[   10.731004] [<c14013cc>] (kernel_init_freeable) from [<c0edf0dc>] (kernel_init+0x8/0x11c)
[   10.739221] [<c0edf0dc>] (kernel_init) from [<c0100148>] (ret_from_fork+0x14/0x2c)
[   10.746822] Exception stack(0xc18cdfb0 to 0xc18cdff8)
[   10.751896] dfa0:                                     00000000 00000000 00000000 00000000
[   10.760113] dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[   10.768327] dfe0: 00000000 00000000 00000000 00000000 00000013 00000000
[   10.774975] Code: e2857090 e58d300c e1a00007 e59d3018 (e584300c)
[   10.781120] ---[ end trace d586ed789ea9c072 ]---
[   10.785759] Kernel panic - not syncing: Fatal exception in interrupt
[   10.792151] ---[ end Kernel panic - not syncing: Fatal exception in interrupt ]---

and my kdump releate bootcmd as:
crashkernel=384M-:128M, I wonder is there any resolve suggestion ?