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Cisco Bug: CSCta20196 - 'dir /recursive nvram:' blocks access to nvram: for other sessions

Last Modified

Feb 15, 2017

Products (17)

  • Cisco IOS
  • Cisco Products
  • Cisco Catalyst 6500 Series Virtual Switching Supervisor Engine 720 with 10GE uplinks
  • Cisco Catalyst 6500 Series Supervisor Engine 2
  • Cisco 10720 Router
  • Cisco Catalyst 6500 Supervisor Engine 32 PISA
  • Cisco Catalyst 6000 Series Multilayer Switch Feature Card 3 (MSFC3)
  • Cisco 7600 Series Supervisor Engine 2 with Multilayer Switch Feature Card
  • Cisco Catalyst 6513 Switch
  • Cisco Catalyst 6500 Series Supervisor Engine 32 / MSFC2A
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Known Affected Releases

12.2(18)SXF16 12.2(33)SRD1

Description (partial)

Nvram becomes inaccessible  when Nvram is accessed. "Device or resource busy"
is thrown. 

Switch#dir nvram:
Directory of nvram:/
%Error opening nvram:/ (Permission denied)
1964024 bytes total (1840999 bytes free)

This issue is triggered by the following commands, executed either manually at
the CLI or via script.
1)  dir /recursive nvram:
2)  dir /all nvram:*
3)  dir nvram:*

This issue will be seen only on platforms which have NVRAM in SP and command
executed from RP.
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
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