Project Number Date
test_Tails_ISO_devel 3877 19 Jun 2025, 15:00

Feature Report

Steps Scenarios Features
Feature Passed Failed Skipped Pending Undefined Total Passed Failed Total Duration Status
System memory erasure on shutdown 46 1 4 0 0 51 5 1 6 20:56.045 Failed
Feature System memory erasure on shutdown
As a Tails user when I shutdown Tails I want the system memory to be free from sensitive data.
58.067
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 29.331
And I prepare Tails for memory erasure tests 6.775
When I start a process allocating 128 MiB of memory with a known pattern 2.722
Then patterns cover at least 128 MiB in the guest's memory 4.991

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

When I kill the allocating process 0.803
Then I find very few patterns in the guest's memory after 5 seconds 13.441

Pattern coverage: 0.000% (0 MiB out of 872 MiB reference memory)

After features/support/hooks.rb:330 0.975
After features/support/hooks.rb:100 0.000
51.701
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.006
Given I have started Tails from DVD without network and logged in 15.467
And I prepare Tails for memory erasure tests 1.289
And I find very few patterns in the guest's memory 3.493

Pattern coverage: 0.000% (0 MiB out of 873 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.354
Then patterns cover at least 99% of the test FS size in the guest's memory 13.814

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

When I umount "/mnt" 1.434
Then I find very few patterns in the guest's memory after 3 seconds 13.847

Pattern coverage: 0.000% (0 MiB out of 873 MiB reference memory)

After features/support/hooks.rb:330 4.103
After features/support/hooks.rb:100 0.000
1:46.023
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.012
Given I have started Tails from DVD without network and logged in 10.065
And I prepare Tails for memory erasure tests 5.557
When I plug and mount a 128 MiB USB drive with a vfat filesystem 20.440
Then I find very few patterns in the guest's memory 7.959

Pattern coverage: 0.000% (0 MiB out of 864 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 3.412
Then patterns cover at least 75% of the test FS size in the guest's memory 13.708

Pattern coverage: 91.777% (117 MiB out of 127 MiB reference memory)

When I umount the USB drive 3.646
Then I find very few patterns in the guest's memory after 3 seconds 16.588

Pattern coverage: 0.000% (0 MiB out of 864 MiB reference memory)

# read cache
When I mount the USB drive again 0.403
And I read the content of the test FS 0.691
Then patterns cover at least 99% of the test FS size in the guest's memory 3.612

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

When I umount the USB drive 0.909
Then I find very few patterns in the guest's memory after 3 seconds 19.028

Pattern coverage: 0.000% (0 MiB out of 864 MiB reference memory)

After features/support/hooks.rb:330 1.635
After features/support/hooks.rb:100 0.000
3:0.375
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 20.266
And I prepare Tails for memory erasure tests 0.469
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 1:24.336
Then I find very few patterns in the guest's memory 11.919

Pattern coverage: 0.000% (0 MiB out of 874 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.730
Then patterns cover at least 99% of the test FS size in the guest's memory 13.808

Pattern coverage: 106.113% (97 MiB out of 91 MiB reference memory)

When I umount the USB drive 1.871
Then I find very few patterns in the guest's memory after 3 seconds 16.006

Pattern coverage: 0.000% (0 MiB out of 874 MiB reference memory)

# read cache
When I mount the USB drive again 6.646
And I read the content of the test FS 0.661
Then patterns cover at least 99% of the test FS size in the guest's memory 14.197

Pattern coverage: 106.116% (97 MiB out of 91 MiB reference memory)

When I umount the USB drive 0.849
Then I find very few patterns in the guest's memory after 3 seconds 6.612

Pattern coverage: 0.000% (0 MiB out of 874 MiB reference memory)

After features/support/hooks.rb:330 6.922
After features/support/hooks.rb:100 0.009
1:8.963
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.024
Given I have started Tails from DVD without network and logged in 12.637
And I prepare Tails for memory erasure tests 0.461
When I fill a 128 MiB file with a known pattern on the root filesystem 19.749
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 4.805
Then patterns cover at least 128 MiB in the guest's memory 10.300

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

When I trigger shutdown 0.017
Then I find very few patterns in the guest's memory after 20 seconds 20.991

Pattern coverage: 0.000% (0 MiB out of 869 MiB reference memory)

After features/support/hooks.rb:330 4.010
After features/support/hooks.rb:100 0.000
13:10.914
Scenario Erasure of read and write disk caches of persistent data on shutdown
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Steps
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 13:10.914
Failed to restore snapshot (RuntimeError)
./features/step_definitions/common_steps.rb:89:in `rescue in post_snapshot_restore_hook'
./features/step_definitions/common_steps.rb:72:in `post_snapshot_restore_hook'
./features/step_definitions/snapshots.rb:167:in `reach_checkpoint'
./features/step_definitions/common_steps.rb:95:in `rescue in post_snapshot_restore_hook'
./features/step_definitions/common_steps.rb:72:in `post_snapshot_restore_hook'
./features/step_definitions/snapshots.rb:167:in `reach_checkpoint'
./features/step_definitions/common_steps.rb:95:in `rescue in post_snapshot_restore_hook'
./features/step_definitions/common_steps.rb:72:in `post_snapshot_restore_hook'
./features/step_definitions/snapshots.rb:167:in `reach_checkpoint'
./features/step_definitions/common_steps.rb:95:in `rescue in post_snapshot_restore_hook'
./features/step_definitions/common_steps.rb:72:in `post_snapshot_restore_hook'
./features/step_definitions/snapshots.rb:167:in `reach_checkpoint'
./features/step_definitions/snapshots.rb:137:in `reach_checkpoint'
./features/step_definitions/snapshots.rb:137:in `reach_checkpoint'
./features/step_definitions/snapshots.rb:173:in `/^I\ have\ started\ Tails\ without\ network\ from\ a\ USB\ drive\ with\ a\ persistent\ partition\ enabled\ and\ logged\ in$/'
features/erase_memory.feature:75:in `Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in'
And I prepare Tails for memory erasure tests 0.000
When I fill a 128 MiB file with a known pattern on the persistent filesystem 0.000
When I trigger shutdown 0.000
Then I find very few patterns in the guest's memory after 20 seconds 0.000
After features/support/hooks.rb:330 5.768

SCENARIO FAILED: 'Erasure of read and write disk caches of persistent data on shutdown' (at time 01:11:28)

Boot log: https://jenkins.tails.boum.org/job/test_Tails_ISO_devel/3877/artifact/build-artifacts/01:11:28_Erasure_of_read_and_write_disk_caches_of_persistent_data_on_shutdown.file_content_var_log_boot.log

Screenshot: https://jenkins.tails.boum.org/job/test_Tails_ISO_devel/3877/artifact/build-artifacts/01:11:28_Erasure_of_read_and_write_disk_caches_of_persistent_data_on_shutdown.png

Video: https://jenkins.tails.boum.org/job/test_Tails_ISO_devel/3877/artifact/build-artifacts/01:11:28_Erasure_of_read_and_write_disk_caches_of_persistent_data_on_shutdown.mkv

Systemd journal: https://jenkins.tails.boum.org/job/test_Tails_ISO_devel/3877/artifact/build-artifacts/01:11:28_Erasure_of_read_and_write_disk_caches_of_persistent_data_on_shutdown.journal

After features/support/hooks.rb:100 0.009