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Cisco Bug: CSCvu31815 - cBR8 'R0/0: kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"' on Subpkg Expand

Last Modified

Sep 10, 2020

Products (31)

  • Cisco cBR Series Converged Broadband Routers
  • Cisco ASR 920-24TZ-M Router
  • Cisco 4221 Integrated Services Router
  • Cisco NCS 4202
  • Cisco ASR 920-10SZ-PD Router
  • Cisco ASR 1002-X Router
  • Cisco 4431 Integrated Services Router
  • Cisco 4321 Integrated Services Router
  • Cisco NCS 4216
  • Cisco 4331 Integrated Services Router
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Known Affected Releases

Fuji-16.7.1

Description (partial)

Symptom:
When doing a subpackage expansion in 16.7.4:

request platform software package expand file stby-harddisk:cbrsup-universalk9.V1612_1Y_ES2_20200323.SPA.bin to stby-bootflash:/16.12.1Y.ES2 <cr>

We saw:

%IOSXE-3-PLATFORM: R0/0: kernel: INFO: task sync:6342 blocked for more than 120 seconds.
%IOSXE-3-PLATFORM: R0/0: kernel:       Tainted: G           O    4.4.155 #1
%IOSXE-3-PLATFORM: R0/0: kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
%IOSXE-4-PLATFORM: R0/0: kernel:  ffff880b88a49a80 00ff880b00000004 ffff880750a2c000 ffff880750a2be9c
%IOSXE-4-PLATFORM: R0/0: kernel:  ffff880750a2be9c ffffffff81160e0c 0000000000000000 0000000000000000

Conditions:
Subpackage expansion triggered by: request platform software package expand file <>.
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