Project Number Date
test_Tails_ISO_devel 4104 06 Dec 2025, 19:19

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 10:49.180 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.
49.215
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 8.463
And I prepare Tails for memory erasure tests 0.440
When I start a process allocating 128 MiB of memory with a known pattern 2.690
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 16.313

Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)

When I kill the allocating process 0.903
Then I find very few patterns in the guest's memory after 5 seconds 20.405

Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)

After features/support/hooks.rb:331 0.917
After features/support/hooks.rb:100 0.000
1:4.086
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 9.601
And I prepare Tails for memory erasure tests 0.678
And I find very few patterns in the guest's memory 15.870

Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.863
Then patterns cover at least 99% of the test FS size in the guest's memory 16.958

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

When I umount "/mnt" 0.533
Then I find very few patterns in the guest's memory after 3 seconds 18.579

Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)

After features/support/hooks.rb:331 1.236
After features/support/hooks.rb:100 0.000
1:50.607
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 8.446
And I prepare Tails for memory erasure tests 0.358
When I plug and mount a 128 MiB USB drive with a vfat filesystem 7.279
Then I find very few patterns in the guest's memory 18.290

Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 4.346
Then patterns cover at least 75% of the test FS size in the guest's memory 17.970

Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.132
Then I find very few patterns in the guest's memory after 3 seconds 17.779

Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)

# read cache
When I mount the USB drive again 0.235
And I read the content of the test FS 1.264
Then patterns cover at least 99% of the test FS size in the guest's memory 15.258

Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)

When I umount the USB drive 0.509
Then I find very few patterns in the guest's memory after 3 seconds 17.737

Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)

After features/support/hooks.rb:331 1.107
After features/support/hooks.rb:100 0.000
3:47.361
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 9.412
And I prepare Tails for memory erasure tests 0.492
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.964
Then I find very few patterns in the guest's memory 23.850

Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 3.059
Then patterns cover at least 99% of the test FS size in the guest's memory 31.357

Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)

When I umount the USB drive 0.657
Then I find very few patterns in the guest's memory after 3 seconds 32.295

Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)

# read cache
When I mount the USB drive again 4.324
And I read the content of the test FS 0.426
Then patterns cover at least 99% of the test FS size in the guest's memory 39.349

Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)

When I umount the USB drive 4.856
Then I find very few patterns in the guest's memory after 3 seconds 47.314

Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)

After features/support/hooks.rb:331 1.137
After features/support/hooks.rb:100 0.000
1:2.764
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 8.375
And I prepare Tails for memory erasure tests 0.394
When I fill a 128 MiB file with a known pattern on the root filesystem 11.661
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.704
Then patterns cover at least 128 MiB in the guest's memory 16.642

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

When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 22.974

Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)

After features/support/hooks.rb:331 4.112
After features/support/hooks.rb:100 0.000
2:15.144
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 0.002
Steps
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 2:15.144
cannot find TailsGreeter.png on the screen (FindFailed)
./features/support/helpers/screen.rb:181:in `rescue in wait'
./features/support/helpers/screen.rb:165:in `wait'
./features/step_definitions/common_steps.rb:439:in `/^the computer (?:re)?boots Tails$/'
./features/step_definitions/common_steps.rb:235:in `/^I start Tails from (.+?) drive "(.+?)"( with network unplugged)?( and I login( with persistence enabled)?( with the changed persistence passphrase)?( (?:and|with) an administration password)?)?$/'
./features/step_definitions/snapshots.rb:153:in `block in reach_checkpoint'
./features/step_definitions/snapshots.rb:150:in `each'
./features/step_definitions/snapshots.rb:150: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: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:76: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:331 5.291

SCENARIO FAILED: 'Erasure of read and write disk caches of persistent data on shutdown' (at time 00:37:42)

Boot log: https://jenkins.tails.boum.org/job/test_Tails_ISO_devel/4104/artifact/build-artifacts/00:37:42_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/4104/artifact/build-artifacts/00:37:42_Erasure_of_read_and_write_disk_caches_of_persistent_data_on_shutdown.png

Video: https://jenkins.tails.boum.org/job/test_Tails_ISO_devel/4104/artifact/build-artifacts/00:37:42_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/4104/artifact/build-artifacts/00:37:42_Erasure_of_read_and_write_disk_caches_of_persistent_data_on_shutdown.journal

After features/support/hooks.rb:100 0.009