11-25-2014 01:39 PM - edited 03-07-2019 09:39 PM
I believe I found a bug in IOS 15.0(2)SE7 on a WS-C2960-24TC-L. I can replicate a system crash with the following steps:
c2960-*****-2#conf t Enter configuration commands, one per line. End with CNTL/Z. c2960-*****-2(config)#int vlan 12 c2960-*****-2(config-if)#ip address dhcp c2960-*****-2(config-if)#ip address 172.17.250.250 255.255.0.0 c2960-*****-2(config-if)#do sh run int vl12 Building configuration... Current configuration : 63 bytes ! interface Vlan12 ip address 172.17.250.250 255.255.0.0 end c2960-*****-2(config-if)#ip address dhcp c2960-*****-2(config-if)#ip address 172.17.250.250 255.255.0.0 sec c2960-*****-2(config-if)#ip address 172.17.250.250 255.255.0.0 secondary c2960-*****-2(config-if)#do sh run int vl12 Building configuration... Current configuration : 41 bytes ! interface Vlan12 ip address dhcp end c2960-*****-2(config-if)#ip address 172.17.250.250 255.255.0.0 c2960-*****-2(config-if)#
I just wanted to give the vlan-if two ip-addresses, one per dhcp, one static. Didn't know this is not possible yet.
After last command the switch crashes and reboots automatically. Here is the output of the system log:
*Mar 1 00:00:34.452: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan1, changed state to down *Mar 1 00:00:35.777: %SPANTREE-5-EXTENDED_SYSID: Extended SysId enabled for type vlan *Mar 1 00:00:36.834: %DC-4-FILE_OPEN_WARNING: Not able to open flash:/dc_profile_dir/dc_default_profiles.txt *Mar 1 00:00:36.834: %DC-6-DEFAULT_INIT_INFO: Default Profiles DB not loaded. 000005: *Mar 1 00:00:40.282: %AAAA-4-CLI_DEPRECATED: WARNING: Command has been added to the configuration but Type 4 passwords have been deprecated. Migrate to a supported password type 000006: *Mar 1 01:00:40.340: %SYS-6-CLOCKUPDATE: System clock has been updated from 00:00:40 UTC Mon Mar 1 1993 to 01:00:40 UTC Mon Mar 1 1993, configured from console by console. 000007: *Mar 1 01:00:40.340: %SYS-6-CLOCKUPDATE: System clock has been updated from 01:00:40 UTC Mon Mar 1 1993 to 01:00:40 UTC Mon Mar 1 1993, configured from console by console. 000008: *Mar 1 01:00:40.936: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan10, changed state to down 000009: *Mar 1 01:00:40.936: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan16, changed state to down 000010: *Mar 1 01:00:40.961: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan919, changed state to down 000011: *Mar 1 01:00:41.003: %SYS-6-LOGGINGHOST_STARTSTOP: Logging to host ####### port 514 CLI Request Triggered 000012: *Mar 1 01:00:41.171: %SYS-5-CONFIG_I: Configured from memory by console 000013: *Mar 1 01:00:42.588: %SYS-5-RESTART: System restarted -- Cisco IOS Software, C2960 Software (C2960-LANBASEK9-M), Version 15.0(2)SE7, RELEASE SOFTWARE (fc1) Technical Support: http://www.cisco.com/techsupport Copyright (c) 1986-2014 by Cisco Systems, Inc. Compiled Thu 23-Oct-14 14:49 by prod_rel_team 000014: *Mar 1 01:00:42.614: %SSH-5-ENABLED: SSH 2.0 has been enabled 000015: *Mar 1 01:00:42.647: %SYS-6-LOGGINGHOST_STARTSTOP: Logging to host ####### port 514 started - CLI initiated 000016: *Mar 1 01:00:42.916: %LINK-5-CHANGED: Interface Vlan1, changed state to administratively down 000017: *Mar 1 01:00:43.520: %LINK-3-UPDOWN: Interface FastEthernet0/1, changed state to up 000018: *Mar 1 01:00:43.520: %LINK-3-UPDOWN: Interface FastEthernet0/2, changed state to up 000019: *Mar 1 01:00:43.520: %LINK-3-UPDOWN: Interface FastEthernet0/3, changed state to up 000020: *Mar 1 01:00:43.528: %LINK-3-UPDOWN: Interface FastEthernet0/4, changed state to up 000021: *Mar 1 01:00:43.528: %LINK-3-UPDOWN: Interface FastEthernet0/5, changed state to up 000022: *Mar 1 01:00:43.528: %LINK-3-UPDOWN: Interface FastEthernet0/6, changed state to up 000023: *Mar 1 01:00:43.528: %LINK-3-UPDOWN: Interface FastEthernet0/7, changed state to up 000024: *Mar 1 01:00:43.536: %LINK-3-UPDOWN: Interface FastEthernet0/8, changed state to up 000025: *Mar 1 01:00:43.536: %LINK-3-UPDOWN: Interface FastEthernet0/9, changed state to up 000026: *Mar 1 01:00:43.536: %LINK-3-UPDOWN: Interface FastEthernet0/12, changed state to up 000027: *Mar 1 01:00:44.266: %SPANTREE-5-TOPOTRAP: Topology Change Trap for vlan 10 000028: *Mar 1 01:00:44.266: %SPANTREE-5-ROOTCHANGE: Root Changed for vlan 10: New Root Port is FastEthernet0/5. New Root Mac Address is 0012.####.1600 000029: *Mar 1 01:00:44.526: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up 000030: *Mar 1 01:00:44.526: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to up 000031: *Mar 1 01:00:44.526: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/3, changed state to up 000032: *Mar 1 01:00:44.535: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/4, changed state to up 000033: *Mar 1 01:00:44.535: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/5, changed state to up 000034: *Mar 1 01:00:44.535: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/6, changed state to up 000035: *Mar 1 01:00:44.535: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/7, changed state to up 000036: *Mar 1 01:00:44.551: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/8, changed state to up 000037: *Mar 1 01:00:44.551: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/12, changed state to up 000038: *Mar 1 01:00:44.602: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan10, changed state to up 000039: *Mar 1 01:00:45.944: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/4, changed state to down 000040: *Mar 1 01:00:47.320: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/9, changed state to up 000041: *Mar 1 01:00:47.949: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/4, changed state to up 000042: *Mar 1 01:00:47.999: %LINK-3-UPDOWN: Interface GigabitEthernet0/2, changed state to up 000043: *Mar 1 01:00:48.242: %LINK-3-UPDOWN: Interface GigabitEthernet0/1, changed state to up 000044: *Mar 1 01:00:51.195: %SPANTREE-5-ROOTCHANGE: Root Changed for vlan 10: New Root Port is Port-channel1. New Root Mac Address is 000d.####.e400 000045: *Mar 1 01:00:51.204: %SPANTREE-5-TOPOTRAP: Topology Change Trap for vlan 10 000046: *Mar 1 01:00:51.254: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan16, changed state to up 000047: *Mar 1 01:00:51.262: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan919, changed state to up 000048: *Mar 1 01:00:52.160: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/1, changed state to up 000049: *Mar 1 01:00:52.948: %SPANTREE-5-ROOTCHANGE: Root Changed for vlan 10: New Root Port is Port-channel1. New Root Mac Address is 000d.####.e400 000050: *Mar 1 01:00:53.150: %LINK-3-UPDOWN: Interface Port-channel1, changed state to up 000051: *Mar 1 01:00:53.955: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/2, changed state to up 000052: *Mar 1 01:00:54.156: %LINEPROTO-5-UPDOWN: Line protocol on Interface Port-channel1, changed state to up 000053: *Nov 25 17:26:16.147: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/6, changed state to down 000054: *Nov 25 17:26:17.464: %SYS-6-LOGGINGHOST_STARTSTOP: Logging to host ###### port 514 started - reconnection 000055: *Nov 25 17:26:18.152: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/6, changed state to up 000056: *Nov 25 17:26:22.690: %DHCP-6-ADDRESS_ASSIGN: Interface Vlan16 assigned DHCP address 192.168.16.238, mask 255.255.255.0, hostname c2960-*****-2 000057: Nov 25 17:26:36.582: %SPANTREE-5-TOPOTRAP: Topology Change Trap for vlan 10 000058: Nov 25 17:27:02.855: %PLATFORM-1-CRASHED: System previously crashed with the following message: 000059: Nov 25 17:27:02.855: %PLATFORM-1-CRASHED: Cisco IOS Software, C2960 Software (C2960-LANBASEK9-M), Version 15.0(2)SE7, RELEASE SOFTWARE (fc1) 000060: Nov 25 17:27:02.855: %PLATFORM-1-CRASHED: Technical Support: http://www.cisco.com/techsupport 000061: Nov 25 17:27:02.855: %PLATFORM-1-CRASHED: Copyright (c) 1986-2014 by Cisco Systems, Inc. 000062: Nov 25 17:27:02.855: %PLATFORM-1-CRASHED: Compiled Thu 23-Oct-14 14:49 by prod_rel_team 000063: Nov 25 17:27:02.855: %PLATFORM-1-CRASHED: 000064: Nov 25 17:27:02.855: %PLATFORM-1-CRASHED: Data TLB Miss Exception (0x1100)! 000065: Nov 25 17:27:02.855: %PLATFORM-1-CRASHED: 000066: Nov 25 17:27:02.855: %PLATFORM-1-CRASHED: SRR0 = 0x01204198 SRR1 = 0x00029230 SRR2 = 0x0144C824 SRR3 = 0x00029230 000067: Nov 25 17:27:02.855: %PLATFORM-1-CRASHED: ESR = 0x00000000 DEAR = 0x0B0D0B3D TSR = 0x84000000 DBSR = 0x00000000 000068: Nov 25 17:27:02.855: %PLATFORM-1-CRASHED: 000069: Nov 25 17:27:02.855: %PLATFORM-1-CRASHED: CPU Register Context: 000070: Nov 25 17:27:02.855: %PLATFORM-1-CRASHED: Vector = 0x00001100 PC = 0x01204198 MSR = 0x00029230 CR = 0x33000039 000071: Nov 25 17:27:02.855: %PLATFORM-1-CRASHED: LR = 0x01204194 CTR = 0x0149BD68 XER = 0xE000003F 000072: Nov 25 17:27:02.855: %PLATFORM-1-CRASHED: R0 = 0x01204194 R1 = 0x037A2D00 R2 = 0x00000000 R3 = 0x00000000 000073: Nov 25 17:27:02.855: %PLATFORM-1-CRASHED: R4 = 0x0145294C R5 = 0x00029230 R6 = 0xBEEFCAFE R7 = 0xBEEFCAFE 000074: Nov 25 17:27:02.855: %PLATFORM-1-CRASHED: R8 = 0x02458B10 R9 = 0x0B0D0B0D R10 = 0x024A0FA8 R11 = 0x024A0000 000075: Nov 25 17:27:02.855: %PLATFORM-1-CRASHED: R12 = 0x0007ADC0 R13 = 0x00110000 R14 = 0x01D00564 R15 = 0x01D00758 000076: Nov 25 17:27:02.855: %PLATFORM-1-CRASHED: R16 = 0x00000009 R17 = 0x01CFE2F8 R18 = 0x024569D0 R19 = 0x0212BCB0 000077: Nov 25 17:27:02.855: %PLATFORM-1-CRASHED: R20 = 0xFFFFFF00 R21 = 0x034A6570 R22 = 0x00000000 R23 = 0x00000019 000078: Nov 25 17:27:02.855: %PLATFORM-1-CRASHED: R24 = 0x03A1F4CC R25 = 0x026C28C4 R26 = 0x00000000 R27 = 0xFFFFFFFF 000079: Nov 25 17:27:02.855: %PLATFORM-1-CRASHED: R28 = 0x00000000 R29 = 0x00000000 R30 = 0x02629DB8 R31 = 0x03819A68 000080: Nov 25 17:27:02.855: %PLATFORM-1-CRASHED: 000081: Nov 25 17:27:02.855: %PLATFORM-1-CRASHED: Stack trace: 000082: Nov 25 17:27:02.855: %PLATFORM-1-CRASHED: PC = 0x01204198, SP = 0x037A2D00 000083: Nov 25 17:27:02.855: %PLATFORM-1-CRASHED: Frame 00: SP = 0x037A2D10 PC = 0x01204194 000084: Nov 25 17:27:02.855: %PLATFORM-1-CRASHED: Frame 01: SP = 0x037A2D38 PC = 0x00FE2EAC 000085: Nov 25 17:27:02.855: %PLATFORM-1-CRASHED: Frame 02: SP = 0x037A2D70 PC = 0x00F81E84 000086: Nov 25 17:27:02.855: %PLATFORM-1-CRASHED: Frame 03: SP = 0x037A2D80 PC = 0x00F829B8 000087: Nov 25 17:27:02.855: %PLATFORM-1-CRASHED: Frame 04: SP = 0x037A2DB0 PC = 0x00F851E4 000088: Nov 25 17:27:02.855: %PLATFORM-1-CRASHED: Frame 05: SP = 0x037A34A8 PC = 0x00E99B88 000089: Nov 25 17:27:02.855: %PLATFORM-1-CRASHED: Frame 06: SP = 0x037A3508 PC = 0x00E9A140 000090: Nov 25 17:27:02.855: %PLATFORM-1-CRASHED: Frame 07: SP = 0x037A3510 PC = 0x014A6C78 000091: Nov 25 17:27:02.855: %PLATFORM-1-CRASHED: Frame 08: SP = 0x00000000 PC = 0x014A122C 000092: Nov 25 17:27:02.855: %PLATFORM-1-CRASHED:
Wasn't able to verify this on another switch with the same IOS. Maybe someone else can prove this?
11-26-2014 01:45 AM
Hey Stefan,
I believe its a good candidate for a TAC case.
HTH.
Regards,
RS.
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