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Cisco Bug: CSCvi10829 - var/tmp 100% full on M3 and F3 linecards due to mfib_log.txt

Last Modified

Dec 04, 2019

Products (16)

  • Cisco Nexus 7000 Series Switches
  • Cisco Nexus 7000 10-Slot Switch
  • Cisco MDS 9710 Multilayer Director
  • Cisco Nexus 7000 4-Slot Switch
  • Cisco MDS 9250i Multiservice Fabric Switch
  • Cisco MDS 9148S 16G Multilayer Fabric Switch
  • Cisco Nexus 7700 6-Slot Switch
  • Cisco Nexus 7700 18-Slot Switch
  • Cisco MDS 9396S 16G Multilayer Fabric Switch
  • Cisco Nexus 7000 18-Slot Switch
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Known Affected Releases

8.2(1) 8.3(0)SK(0.35)

Description (partial)

Symptom:
/var/tmp gets 100% full on M3 and F3 linecards:

%SYSMGR-SLOT6-2-TMP_DIR_FULL: System temporary directory usage is unexpectedly high at 100%.

mfib_log.txt  file is growing endlessly on M3 modules:

module-4# sh system internal dir /tmp
                                                                ./         920
                                                               ../          80
                                                     mfib_log.txt     49938432

Conditions:
N7K with m3 and f3 linecards running 8.2(1) release. Other releases may also be affected.
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
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