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Cisco Bug: CSCuo86819 - WLC crashes in 7.6.120.0 - memory corruption caused by Webauth

Last Modified

May 23, 2018

Products (1)

  • Cisco 5500 Series Wireless Controllers

Known Affected Releases

7.4(121.17) 7.4(121.21) 7.6(110.0) 7.6(120.0)

Description (partial)

Symptom:
A WLC may crash, displaying a variety of symptoms, for example:

Task Name:	PMIPV6 Thread
Reason: 	System Crash
[ ... ]
  Software Failed on instruction at :
 pc = 0x122e7cec (license_xos_thread_create+2139596), ra = 0x122f630c (license_xos_thread_create+2139596)
  Software Failed while accessing the data located at :0x160c

or

  Software was stopped by the reaper for the following reason:
     Reaper Reset: Task "PMIPV6 Thread" taking too much cpu: 100%,  (user 84%, system 15%) while SW Watchdog is disabled

or

Task Name:     RRM-CLNT-2_4
Reason:        System Crash
[ ... ]
  Software was stopped for the following reason:
     pmalloc detected memory corruption

Conditions:
WLC is running AireOS 7.6.120.0.
 
Webauth is in use.

Related Community Discussions

[CUWN] リリース 7.6.120.0 で動いている WLC が再起動する問題
2015年7月24日(初版) TAC SR Collection 主な問題 Local Web Authenticaiton (LWA) /ローカル Web 認証が有効となっている場合、WLC が意図せず再起動するという問題が発生します。このとき、WLC のコンソールログには次のようなログが出力されることがあります。 | Software Failed on instruction at : pc = 0x122e7cec (license_xos_thread_create+2139596), ra = 0x122f630c (license_xos_thread_create+2139596) Software Failed while accessing the data located at :0x160c ​または Software was stopped by the reaper for the following reason: Reaper Reset: Task "PMIPV6 Thread" taking too much cpu: 100%, ...
Latest activity: Jul 23, 2015
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