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NixOS tests: Increase hung_task_timeout_secs

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This hopefully fixes intermittent test failures like

  http://hydra.nixos.org/build/29962437

  router# [  240.128835] INFO: task mke2fs:99 blocked for more than 120 seconds.
  router# [  240.130135]       Not tainted 3.18.25 #1-NixOS
  router# [  240.131110] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.

assuming that these are caused by high load on the host.
This commit is contained in:
Eelco Dolstra
2016-01-04 16:53:42 +01:00
parent 517d8c8846
commit 6d02d7e740
3 changed files with 16 additions and 1 deletions
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5
nixos/modules/testing/test-instrumentation.nix
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@@ -43,6 +43,11 @@ let kernel = config.boot.kernelPackages.kernel; in
# into thinking they're running interactively.
environment.variables.PAGER = "";
boot.initrd.preDeviceCommands =
''
echo 600 > /proc/sys/kernel/hung_task_timeout_secs
'';
boot.initrd.postDeviceCommands =
''
# Using acpi_pm as a clock source causes the guest clock to