S5560 abnormal reboot

S5560 switch abnormal reboot and the reason is KernelAbnormalReboot. Find in display kernel reboot 20 verbose slot 1 reason is 0x1. 

Want to ask what does 0x1 stands for? and what is general reason for kernal abnormal reboot? 

 Slot 1: Uptime is 0 weeks,3 days,19 hours,49 minutes 

 H3C S5560-54C-PWR-EI with 2 Processors 

 BOARD TYPE: S5560-54C-PWR-EI 

DRAM: 1984M bytes 

 FLASH: 512M bytes 

 PCB 1 Version: VER.B 

 Bootrom Version: 123 

 CPLD 1 Version: 003 

 Release Version: H3C S5560-54C-PWR-EI-1121 

 Patch Version : None 

 Reboot Cause : KernelAbnormalReboot

===============display kernel reboot 20 verbose slot 1 =============== 

 --------------------- Reboot record 1 --------------------- 

 Recorded at : 2022-10-20 20:47:06.259387 

 Occurred at : 2022-10-20 20:47:06.259387 

 Reason : 0x1 

 Thread : 

vland (TID: 200) 

 Context : thread context 

 Slot : 1 

 Cpu : 0 

 VCPU ID : 0 

 Kernel module info : module name (system) module address (0x70042000) module name (disk) module address (0x70000000) 

 Last 5 thread switches : dAUR (20:47:5.996629)--> GMpt (20:47:5.996672)--> PSED (20:47:5.996678)--> IUCT (20:47:6.2415)--> vland (20:47:6.2877) 

 Dump stack (total 1024 bytes, 16 bytes/line): 0xc8d3f890: 00 00 00 00 70 11 0c d8 b4 12 38 80 6c 5f 07 80 0xc8d3f8a0: 80 ff 32 80 00 70 9b 01 d4 f8 d3 c8 b2 f9 d3 c8 0xc8d3f8b0: 3f 32 27 80 3a 32 27 80 64 f9 d3 c8 41 32 27 80 0xc8d3f8c0: d8 f8 d3 c8 b8 f9 d3 c8 93 01 00 60 bc 08 38 80 0xc8d3f8d0: e0 df 32 80 dc df 32 80 0c f9 d3 c8 e8 f8 d3 c8 0xc8d3f8e0: 0c f9 d3 c8 f0 f8 d3 c8 78 7b 36 70 00 7b 36 70 0xc8d3f8f0: e0 df 32 80 04 00 00 00 34 f9 d3 c8 08 f9 d3 c8 0xc8d3f900: c0 f7 44 70 00 7b 36 70 3c f9 d3 c8 07 00 00 00 0xc8d3f910: 01 00 00 00 01 00 00 00 01 00 00 00 ff ff 00 00 0xc8d3f920: 5c 2b 03 80 00 00 00 00 64 f9 d3 c8 38 f9 d3 c8 0xc8d3f930: ec 06 3e 70 58 5e 07 80 4c 0e 45 70 40 f6 44 70 0xc8d3f940: 64 f9 d3 c8 01 00 00 00 01 00 00 00 01 00 00 00 0xc8d3f950: 01 00 00 00 01 00 00 00 cc f9 d3 c8 68 f9 d3 c8 0xc8d3f960: 2c c4 67 70 38 06 3e 70 9c f9 d3 c8 3b 00 00 00 0xc8d3f970: f8 07 34 80 80 ff 32 80 02 00 03 00 04 00 00 00 0xc8d3f980: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0xc8d3f990: 00 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 0xc8d3f9a0: ff ff 00 00 03 00 00 00 01 00 00 00 01 00 00 00 0xc8d3f9b0: 00 00 00 00 00 00 00 00 ff ff 00 00 01 00 00 00 0xc8d3f9c0: 04 fa d3 c8 d0 f9 d3 c8 d0 ca 67 70 64 c2 67 70 0xc8d3f9d0: 00 fa 44 70 00 7b 36 70 80 5a 07 80 01 00 00 00 0xc8d3f9e0: ff ff 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0xc8d3f9f0: 5c 2b 03 80 88 12 27 80 24 fa d3 c8 08 fa d3 c8 0xc8d3fa00: c4 e6 4c 70 a8 ca 67 70 fc 39 05 80 01 00 01 00 0xc8d3fa10: 01 00 00 00 08 00 00 00 44 fa d3 c8 28 fa d3 c8 0xc8d3fa20: 30 cc 59 71 7c e6 4c 70 20 4a 53 71 f0 b1 86 71 0xc8d3fa30: 00 00 01 00 01 00 00 00 64 fa d3 c8 48 fa d3 c8 0xc8d3fa40: 04 45 5a 71 18 cc 59 71 00 00 00 00 6c f6 33 80 0xc8d3fa50: 30 f0 33 80 00 00 00 00 74 fa d3 c8 68 fa d3 c8 0xc8d3fa60: 34 f9 58 71 b4 44 5a 71 94 fa d3 c8 78 fa d3 c8 0xc8d3fa70: 64 f8 03 80 20 f9 58 71 01 00 00 00 00 01 29 15 0xc8d3fa80: 20 22 04 80 05 08 00 00 b4 fa d3 c8 98 fa d3 c8 0xc8d3fa90: 20 22 04 80 34 f6 03 80 c0 fb d3 c8 00 01 29 15 0xc8d3faa0: c0 e8 cc c8 05 08 00 00 f4 fa d3 c8 b8 fa d3 c8 0xc8d3fab0: e8 e6 21 80 c0 21 04 80 a4 9e 4c 70 64 8c 4c 70 0xc8d3fac0: 01 00 00 00 00 00 00 00 ab 00 00 00 05 08 00 00 0xc8d3fad0: 38 ce 32 80 00 01 29 15 c0 fb d3 c8 2c 00 00 00 0xc8d3fae0: 93 01 00 40 c8 b2 58 2c 14 fb d3 c8 f8 fa d3 c8 0xc8d3faf0: 98 e9 21 80 4c e6 21 80 05 08 00 00 38 ce 32 80 0xc8d3fb00: 00 01 29 15 c0 fb d3 c8 bc fb d3 c8 18 fb d3 c8 0xc8d3fb10: 64 75 03 80 30 e9 21 80 01 00 00 00 cd ab 00 00 0xc8d3fb20: c4 fb d3 c8 30 fb d3 c8 fc a3 4c 70 58 9b 4c 70 0xc8d3fb30: 13 00 00 80 c0 00 00 00 13 00 00 80 20 44 bf c9 0xc8d3fb40: 03 00 00 00 9e ff ff ff 00 00 00 00 01 00 00 00 0xc8d3fb50: 02 00 00 00 ab 00 00 00 04 00 00 00 00 00 00 00 0xc8d3fb60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0xc8d3fb70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0xc8d3fb80: 00 e0 fc 0f 8c 02 d3 c8 00 e0 fc 0f 8c 03 6b 70 0xc8d3fb90: 02 00 00 00 01 00 00 00 08 14 6b 70 00 03 f2 9f 0xc8d3fba0: ff ff ff ff f4 fb d3 c8 00 01 29 15 00 40 01 00 0xc8d3fbb0: 3c fc d3 c8 c0 fb d3 c8 ec c6 21 80 38 75 03 80 0xc8d3fbc0: c0 1b 33 80 b8 91 e3 80 d4 8f ee 80 b8 91 e3 80 0xc8d3fbd0: 08 00 00 00 00 00 00 00 00 01 29 15 00 40 01 00 0xc8d3fbe0: 2c 00 00 00 00 01 10 00 c8 b2 58 2c 3c fc d3 c8 0xc8d3fbf0: 10 04 02 01 08 fc d3 c8 3c cd 09 80 74 cc 09 80 0xc8d3fc00: 93 00 00 00 ff ff ff ff 34 fc d3 c8 08 00 00 00 0xc8d3fc10: 34 55 4d 70 00 80 09 00 00 90 3e 80 00 00 0c 00 0xc8d3fc20: 00 00 07 00 0e 00 00 00 20 90 d8 80 ec 1e 33 80 0xc8d3fc30: 5c fc d3 c8 40 fc d3 c8 3c cd 09 80 f8 cb 09 80 0xc8d3fc40: 00 90 d8 80 c0 1b 33 80 01 00 00 00 01 00 00 00 0xc8d3fc50: 94 fc d3 c8 60 fc d3 c8 30 df 09 80 c8 cc 09 80 0xc8d3fc60: 13 00 00 20 80 1c 33 80 02 00 00 00 01 00 00 00 0xc8d3fc70: c0 1b 33 80 02 00 00 00 00 00 00 00 13 00 00 20 0xc8d3fc80: 02 00 00 00 00 80 d3 c8 0c fd d3 c8 98 fc d3 c8 

 Call trace: Function Address = 0x7067c42c Function Address = 0x7067cad0 Function Address = 0x704ce6c4 Function Address = 0x7159cc30 Function Address = 0x715a4504 Function Address = 0x7158f934 Function Address = 0x8003f864 Function Address = 0x80042220 Function Address = 0x8021e6e8 Function Address = 0x8021e998 Function Address = 0x80037564 Function Address = 0x8021c6ec Function Address = 0x8009cd3c Function Address = 0x8009df30 Function Address = 0x8009ef30 Function Address = 0x8009f0dc Function Address = 0x8009f518 Function Address = 0x800bd024 Function Address = 0x800bd660 Function Address = 0x716e46d4