Challenging network disruption problem

Hi folks,
In our network we have multiple Cat5500 with RSM running multiple vlans, connected to each other via Gigabit Ethernet. One of our RSM recently keeps on displaying this error message after rebooting:
Aug 2 16:33:25 GMT: %ALIGN-3-SPURIOUS: Spurious memory access made at 0x40A30B80 reading 0x78
Aug 2 16:33:25 GMT: %ALIGN-3-TRACE: -Traceback= 40A30B80 40A314F4 402B2450 402BE468 402BE628 40365CE8 403614C0 4035BA84
Aug 2 16:33:25 GMT: %ALIGN-3-TRACE: -Traceback= 40A30B88 40A314F4 402B2450 402BE468 402BE628 40365CE8 403614C0 4035BA84
Initially we didnt think much of it, however the past week we had 3 severe disruptions on a particular vlan used by our servers. The symptoms are quite strange, without warning the servers/pcs in that particular vlan will stop being able to ping/see most of the other vlans. Furthermore, when we first do a ping to another vlan's pc/server, the first ping gets a reply, but subsequently gets timeout for good. I checked the routing, plus no ACLs. The funny thing is pings works for *some* vlans from that vlan, but not for others. The problem was only resolved by rebooting the entire switch. I need some ideas on how to troubleshoot. Anyone bold enough to venture a guess?
thanks

Are you running MLS?
If yes, see if problem is cleared by 'clear mls entry all' on the switch or 'clear arp' on the rsm. If this works, problem may be mls related.

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ThinkPads:- T400[Win 7], T60[Win 7], IBM 240[Win XP]
IdeaPad: U350
Apple:- Macbook Air [Snow Leopard]
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com.apple.message.domain: com.apple.wifi.timeout.xpc
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com.apple.message.domain: com.apple.wifi.timeout.xpc
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com.apple.message.domain: com.apple.wifi.timeout.xpc
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com.apple.message.result: pass
com.apple.message.value: 1.000000
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Problem solved.
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Thanks.
This question was solved.
View Solution.

Go into the printer settings and disable Wireless Direct. Done.
Say thanks by clicking the Kudos Thumbs Up to the right in the post.
If my post resolved your problem, please mark it as an Accepted Solution ...
I worked for HP but now I'm retired!

Challenging network disruption problem

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