Cucumber Reports (no 97) - Feature: System memory erasure on shutdown

Project	Number	Date
test_Tails_ISO_feature-arti	97	24 Jun 2025, 21:20

	Steps	Scenarios	Features
System memory erasure on shutdown	43	1	7	0	0	51	5	1	6	22:5.407	Failed

37.800

Scenario Erasure of memory freed by killed userspace processes

Hooks

Before features/support/hooks.rb:266 0.000

Before features/support/hooks.rb:273 0.003

Steps

Given I have started Tails from DVD without network and logged in 11.428

And I prepare Tails for memory erasure tests 1.781

When I start a process allocating 128 MiB of memory with a known pattern 2.785

Then patterns cover at least 128 MiB in the guest's memory 4.132

Output 1

Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)

When I kill the allocating process 0.349

Then I find very few patterns in the guest's memory after 5 seconds 17.323

Output 1

Pattern coverage: 0.000% (0 MiB out of 886 MiB reference memory)

Hooks

After features/support/hooks.rb:330 0.905

After features/support/hooks.rb:100 0.000

Tags: @product @slow @not_release_blocker

41.045

Scenario Erasure of tmpfs data on unmount

Hooks

Before features/support/hooks.rb:266 0.000

Before features/support/hooks.rb:273 0.004

Steps

Given I have started Tails from DVD without network and logged in 14.803

And I prepare Tails for memory erasure tests 3.210

And I find very few patterns in the guest's memory 3.351

Output 1

Pattern coverage: 0.000% (0 MiB out of 878 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.127

Then patterns cover at least 99% of the test FS size in the guest's memory 10.931

Output 1

Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)

When I umount "/mnt" 0.903

Then I find very few patterns in the guest's memory after 3 seconds 5.716

Output 1

Pattern coverage: 0.000% (0 MiB out of 878 MiB reference memory)

Hooks

After features/support/hooks.rb:330 0.881

After features/support/hooks.rb:100 0.000

Tags: @product @slow @not_release_blocker

1:14.418

Scenario Erasure of read and write disk caches on unmount: vfat

Hooks

Before features/support/hooks.rb:266 0.000

Before features/support/hooks.rb:273 0.004

Steps

Given I have started Tails from DVD without network and logged in 12.691

And I prepare Tails for memory erasure tests 0.815

When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.560

Then I find very few patterns in the guest's memory 11.062

Output 1

Pattern coverage: 0.000% (0 MiB out of 879 MiB reference memory)

# write cache

When I fill the USB drive with a known pattern 3.106

Then patterns cover at least 75% of the test FS size in the guest's memory 3.453

Output 1

Pattern coverage: 86.218% (110 MiB out of 127 MiB reference memory)

When I umount the USB drive 2.210

Then I find very few patterns in the guest's memory after 3 seconds 12.093

Output 1

Pattern coverage: 0.000% (0 MiB out of 879 MiB reference memory)

# read cache

When I mount the USB drive again 0.226

And I read the content of the test FS 0.547

Then patterns cover at least 99% of the test FS size in the guest's memory 3.161

Output 1

Pattern coverage: 100.596% (128 MiB out of 127 MiB reference memory)

When I umount the USB drive 0.732

Then I find very few patterns in the guest's memory after 3 seconds 13.756

Output 1

Pattern coverage: 0.000% (0 MiB out of 879 MiB reference memory)

Hooks

After features/support/hooks.rb:330 1.535

After features/support/hooks.rb:100 0.000

Tags: @product @slow @not_release_blocker

1:16.510

Scenario Erasure of read and write disk caches on unmount: LUKS-encrypted ext4

Hooks

Before features/support/hooks.rb:266 0.000

Before features/support/hooks.rb:273 0.002

Steps

Given I have started Tails from DVD without network and logged in 9.460

And I prepare Tails for memory erasure tests 3.009

When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 48.186

Then I find very few patterns in the guest's memory 2.779

Output 1

Pattern coverage: 0.000% (0 MiB out of 891 MiB reference memory)

# write cache

When I fill the USB drive with a known pattern 2.619

Then patterns cover at least 99% of the test FS size in the guest's memory 10.455

92.510%

92.510% of the test FS size (91.490234375 MiB) has the pattern, but more than 99.000% was expected.
<false> is not true. (Test::Unit::AssertionFailedError)
./features/step_definitions/erase_memory.rb:170:in `/^patterns cover at least (\d+)% of the test FS size in the guest's memory$/'
features/erase_memory.feature:54:in `Then patterns cover at least 99% of the test FS size in the guest's memory'

Output 1

Pattern coverage: 92.510% (84 MiB out of 91 MiB reference memory)

When I umount the USB drive 0.000

Then I find very few patterns in the guest's memory after 3 seconds 0.000

# read cache

When I mount the USB drive again 0.000

And I read the content of the test FS 0.000

Then patterns cover at least 99% of the test FS size in the guest's memory 0.000

When I umount the USB drive 0.000

Then I find very few patterns in the guest's memory after 3 seconds 0.000

Hooks

After features/support/hooks.rb:330 5.832

Output 1

SCENARIO FAILED: 'Erasure of read and write disk caches on unmount: LUKS-encrypted ext4' (at time 01:26:21)

Boot log: https://jenkins.tails.boum.org/job/test_Tails_ISO_feature-arti/97/artifact/build-artifacts/01:26:21_Erasure_of_read_and_write_disk_caches_on_unmount:_LUKS-encrypted_ext4.file_content_var_log_boot.log

Screenshot: https://jenkins.tails.boum.org/job/test_Tails_ISO_feature-arti/97/artifact/build-artifacts/01:26:21_Erasure_of_read_and_write_disk_caches_on_unmount:_LUKS-encrypted_ext4.png

Video: https://jenkins.tails.boum.org/job/test_Tails_ISO_feature-arti/97/artifact/build-artifacts/01:26:21_Erasure_of_read_and_write_disk_caches_on_unmount:_LUKS-encrypted_ext4.mkv

Systemd journal: https://jenkins.tails.boum.org/job/test_Tails_ISO_feature-arti/97/artifact/build-artifacts/01:26:21_Erasure_of_read_and_write_disk_caches_on_unmount:_LUKS-encrypted_ext4.journal

After features/support/hooks.rb:100 0.000

Tags: @product @slow @not_release_blocker

1:18.950

Scenario Erasure of the overlayfs read-write branch on shutdown

Hooks

Before features/support/hooks.rb:266 0.000

Before features/support/hooks.rb:273 0.003

Steps

Given I have started Tails from DVD without network and logged in 25.220

And I prepare Tails for memory erasure tests 0.595

When I fill a 128 MiB file with a known pattern on the root filesystem 19.805

# ensure the pattern is in memory due to tmpfs, not to disk cache

And I drop all kernel caches 3.115

Then patterns cover at least 128 MiB in the guest's memory 9.357

Output 1

Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)

When I trigger shutdown 0.016

Then I find very few patterns in the guest's memory after 20 seconds 20.839

Output 1

Pattern coverage: 0.000% (0 MiB out of 896 MiB reference memory)

Hooks

After features/support/hooks.rb:330 3.753

After features/support/hooks.rb:100 0.000

Tags: @product @slow @not_release_blocker

16:56.680

Scenario Erasure of read and write disk caches of persistent data on shutdown

Hooks

Before features/support/hooks.rb:266 0.000

Before features/support/hooks.rb:273 0.020

Steps

Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 16:4.555

And I prepare Tails for memory erasure tests 3.445

When I fill a 128 MiB file with a known pattern on the persistent filesystem 27.439

When I trigger shutdown 0.017

Then I find very few patterns in the guest's memory after 20 seconds 21.221

Output 1

Pattern coverage: 0.000% (0 MiB out of 933 MiB reference memory)

Hooks

After features/support/hooks.rb:330 3.592

After features/support/hooks.rb:100 0.023

	Steps						Scenarios			Features
Feature	Passed	Failed	Skipped	Pending	Undefined	Total	Passed	Failed	Total	Duration	Status
System memory erasure on shutdown	43	1	7	0	0	51	5	1	6	22:5.407	Failed

Feature Report