6.2 on 1100Hx2 crashing after upgrade

RouterOS General
1

I just upgraded my 1100Hx2 from 5.22 to 6.2 and right after boot I am getting following message on console:

Oops: Exception in kernel mode, sig: 5 [#1]
SMP NR_CPUS=2 RB1120
NIP: c151ebe0 LR: c157e44c CTR: c157e3e4
REGS: bee71c10 TRAP: 0700   Not tainted  (3.3.5-smp)
MSR: 00029000 <CE,EE,ME>  CR: 22082082  XER: 00000000
TASK = bf20f480[201] 'net' THREAD: bee70000 CPU: 0
GPR00: c159877c bee71cc0 bf20f480 00000001 c157e458 00000001 00000000 ffff9311 
GPR08: c157e458 c1520000 c151ffb8 00021000 22082022 1009b600 10010158 10010138 
GPR16: 100100d0 00000000 00000008 10090000 10080430 bee4df0c 00000000 bf89b800 
GPR24: 00008914 beed03c0 00000002 00000002 beed0000 beed0b60 bf209400 beed03c0 
NIP [c151ebe0] fast_path_ipv4_hw_register+0x74/0x8c [packet_hook@0xc151e000]
LR [c157e44c] ath8327_flush_hosts+0x1cc/0x410 [ath8327@0xc157a000]
Call Trace:
[bee71cc0] [beed0b60] 0xbeed0b60 (unreliable)
[bee71cd0] [c159877c] gfar_get_stats+0x3748/0x45e4 [gianfar@0xc1595000]
[bee71d00] [802248cc] __dev_close_many+0x9c/0xf0
[bee71d20] [802249f8] dev_close_many+0x8c/0x104
[bee71d50] [80226b84] dev_close+0x40/0x64
[bee71d70] [c1569dbc] switch_ioctl+0x2cc/0x30c [switch@0xc1569000]
[bee71da0] [802248cc] __dev_close_many+0x9c/0xf0
[bee71dc0] [8022494c] __dev_close+0x2c/0x4c
[bee71de0] [802287dc] __dev_change_flags+0x134/0x198
[bee71e00] [802288f4] dev_change_flags+0x1c/0x68
[bee71e20] [80283214] devinet_ioctl+0x638/0x89c
[bee71e80] [8020fa14] sock_ioctl+0x68/0x2e4
[bee71ea0] [800c0f34] do_vfs_ioctl+0x9c/0x754
[bee71f10] [800c1628] sys_ioctl+0x3c/0x74
[bee71f40] [8000d0d8] ret_from_syscall+0x0/0x3c
--- Exception: c01 at 0x30109ae4
    LR = 0x3014f944
Instruction dump:
4dbe0020 4bfffd28 2f830001 419e0020 8129ffb8 7c844a78 7c840034 5484d97e 
68840001 0f040000 4e800020 8109ffb8 <0f080000> 814a0004 9089ffb8 2f8a0000 
---[ end trace 0cbf6ae0f3e4b125 ]---

The system is the pretty useless, not responding to most of commands (reboot, listing interfaces, …)

/system reboot
Reboot, yes? [y/N]: 
y
system will reboot shortly


Rebooting...
Stopping services...
failed to stop racoon: std failure: timeout (13)
failed to stop ppp: std failure: timeout (13)
failed to stop wireless: std failure: timeout (13)
failed to stop route: std failure: timeout (13)

How can I fix that?
Thx.

2

Do ypu have console access? Sounds like a netinstall may be in order

3

Just to clarify, the 6.2 keeps crashing on 1100Hx2 even if freshly installed using netinstall - just after few initial config attempts (not sure at what step exactly but was setting up interfaces/bridges/bonds/vlans…) I get the error trace shown above and after that the device is useless (commandline still responding but not listing any interfaces, unable to reboot, …).

I could only resolve it by netinstalling back to 5.25. There is something fundamentally wrong with the 6.2 (at least in combination with 1100Hx2) as it crashes fatally.

4

Do you have the possibility to swap the memory? Maybe the memory module is broken. We have a 1100Hx2 running fine with 6.2.

5

I had this same problem with my 1100Hx2 on 6.1 or 6.2. After troubleshooting with MT support, it’s a known issue with them that should be fixed in 6.3. They gave me a copy of 6.3 beta and it seems to work.