Project Number Date
test_Tails_ISO_21751-test-cloudflare-dns-server 2 23 Sep 2026, 09:03

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 4:29.692 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.
19.851
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.334
And I prepare Tails for memory erasure tests 0.310
When I start a process allocating 128 MiB of memory with a known pattern 2.169
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.778

Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)

When I kill the allocating process 0.207
Then I find very few patterns in the guest's memory after 5 seconds 8.051

Pattern coverage: 0.000% (0 MiB out of 1407 MiB reference memory)

After features/support/hooks.rb:339 0.921
After features/support/hooks.rb:108 0.000
20.246
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.001
Given I have started Tails from DVD without network and logged in 6.391
And I prepare Tails for memory erasure tests 0.275
And I find very few patterns in the guest's memory 2.647

Pattern coverage: 0.000% (0 MiB out of 1392 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.376
Then patterns cover at least 99% of the test FS size in the guest's memory 3.304

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

When I umount "/mnt" 0.346
Then I find very few patterns in the guest's memory after 3 seconds 5.903

Pattern coverage: 0.000% (0 MiB out of 1392 MiB reference memory)

After features/support/hooks.rb:339 0.945
After features/support/hooks.rb:108 0.000
37.398
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.444
And I prepare Tails for memory erasure tests 0.326
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.330
Then I find very few patterns in the guest's memory 3.043

Pattern coverage: 0.000% (0 MiB out of 1393 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.715
Then patterns cover at least 75% of the test FS size in the guest's memory 3.142

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

When I umount the USB drive 0.632
Then I find very few patterns in the guest's memory after 3 seconds 5.850

Pattern coverage: 0.000% (0 MiB out of 1393 MiB reference memory)

# read cache
When I mount the USB drive again 0.297
And I read the content of the test FS 0.598
Then patterns cover at least 99% of the test FS size in the guest's memory 2.904

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

When I umount the USB drive 0.353
Then I find very few patterns in the guest's memory after 3 seconds 5.758

Pattern coverage: 0.000% (0 MiB out of 1393 MiB reference memory)

After features/support/hooks.rb:339 0.863
After features/support/hooks.rb:108 0.000
1:9.332
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.517
And I prepare Tails for memory erasure tests 0.331
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 35.886
Then I find very few patterns in the guest's memory 2.566

Pattern coverage: 0.000% (0 MiB out of 1409 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.166
Then patterns cover at least 99% of the test FS size in the guest's memory 2.674

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

When I umount the USB drive 0.521
Then I find very few patterns in the guest's memory after 3 seconds 6.192

Pattern coverage: 0.000% (0 MiB out of 1409 MiB reference memory)

# read cache
When I mount the USB drive again 4.162
And I read the content of the test FS 0.308
Then patterns cover at least 99% of the test FS size in the guest's memory 2.983

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

When I umount the USB drive 0.504
Then I find very few patterns in the guest's memory after 3 seconds 5.515

Pattern coverage: 0.000% (0 MiB out of 1409 MiB reference memory)

After features/support/hooks.rb:339 0.945
After features/support/hooks.rb:108 0.000
45.025
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.229
And I prepare Tails for memory erasure tests 0.431
When I fill a 128 MiB file with a known pattern on the root filesystem 13.377
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.583
Then patterns cover at least 128 MiB in the guest's memory 2.575

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

When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.823

Pattern coverage: 0.000% (0 MiB out of 1395 MiB reference memory)

After features/support/hooks.rb:339 3.515
After features/support/hooks.rb:108 0.000
1:17.838
Scenario Erasure of read and write disk caches of persistent data on shutdown
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Steps
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 1:17.838
Known issue #20282: Error starting GDM with your graphics card (RuntimeError)
./features/step_definitions/common_steps.rb:450:in `/^the computer (?:re)?boots Tails$/'
./features/step_definitions/common_steps.rb:238:in `/^I start Tails from (.+?) drive "(.+?)"( with network unplugged)?( and I login( with persistence enabled)?( with the changed persistence passphrase)?( (?:and|with) an administration password)?)?$/'
./features/step_definitions/snapshots.rb:206:in `block in reach_checkpoint'
./features/step_definitions/snapshots.rb:203:in `each'
./features/step_definitions/snapshots.rb:203:in `reach_checkpoint'
./features/step_definitions/snapshots.rb:190:in `reach_checkpoint'
./features/step_definitions/snapshots.rb:190:in `reach_checkpoint'
./features/step_definitions/snapshots.rb:190:in `reach_checkpoint'
./features/step_definitions/snapshots.rb:226: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:339 5.130

SCENARIO FAILED: 'Erasure of read and write disk caches of persistent data on shutdown' (at time 00:35:44)

Boot log: https://jenkins.tails.net/job/test_Tails_ISO_21751-test-cloudflare-dns-server/2/artifact/build-artifacts/00:35:44_Erasure_of_read_and_write_disk_caches_of_persistent_data_on_shutdown.file_content_var_log_boot.log

Screenshot: https://jenkins.tails.net/job/test_Tails_ISO_21751-test-cloudflare-dns-server/2/artifact/build-artifacts/00:35:44_Erasure_of_read_and_write_disk_caches_of_persistent_data_on_shutdown.png

Video: https://jenkins.tails.net/job/test_Tails_ISO_21751-test-cloudflare-dns-server/2/artifact/build-artifacts/00:35:44_Erasure_of_read_and_write_disk_caches_of_persistent_data_on_shutdown.mkv

Systemd journal: https://jenkins.tails.net/job/test_Tails_ISO_21751-test-cloudflare-dns-server/2/artifact/build-artifacts/00:35:44_Erasure_of_read_and_write_disk_caches_of_persistent_data_on_shutdown.journal

After features/support/hooks.rb:108 0.013