Cisco Bug: CSCur21775 - STACKLOW error message results in unexpected reboot
Last Modified
Dec 03, 2018
Products (96)
- Cisco IOS
- Cisco 886VA-CUBE Integrated Services Router
- Cisco 2951 Integrated Services Router
- Cisco 892W Integrated Services Router
- Cisco 888W Integrated Services Router
- Cisco VG204XM Analog Voice Gateway
- Cisco 812 CiFi Integrated Services Router
- Cisco 1905 Serial Integrated Services Router
- Cisco 861W Integrated Services Router
- Cisco 881SRSTW Integrated Services Router

Known Affected Releases
15.3(3)M 15.4(3)M
Description (partial)
Symptom: On an ISR G2 router running 15.3(3)M1, the BGP Open process will start, and report that it is running out of stack space: *Sep 22 12:59:48.587: %SYS-6-STACKLOW: Stack for process BGP Open running low, 20/6000 *Sep 22 13:00:48.591: %SYS-6-STACKLOW: Stack for process BGP Open running low, 20/6000 *Sep 22 13:03:49.103: %SYS-6-STACKLOW: Stack for process BGP Open running low, 24/6000 *Sep 22 13:03:49.103: %SYS-6-STACKLOW: Stack for process BGP Open running low, 24/6000 BGP Open will then shut down and restart, and continue displaying these errors. Conditions: If a process is running low on stack and gets killed, this issue could be seen.
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Bug Details Include
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