Project Number Date
test_Tails_ISO_7929-celluloid-flatpak 70 22 Jun 2026, 14:28

Feature Report

Steps Scenarios Features
Feature Passed Failed Skipped Pending Undefined Total Passed Failed Total Duration Status
System memory erasure on shutdown 51 0 0 0 0 51 6 0 6 7:56.115 Passed
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.
18.435
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 6.851
And I prepare Tails for memory erasure tests 0.338
When I start a process allocating 128 MiB of memory with a known pattern 2.212
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.845

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

When I kill the allocating process 0.179
Then I find very few patterns in the guest's memory after 5 seconds 7.007

Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)

After features/support/hooks.rb:339 0.862
After features/support/hooks.rb:108 0.000
17.235
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 6.674
And I prepare Tails for memory erasure tests 0.380
And I find very few patterns in the guest's memory 1.710

Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.497
Then patterns cover at least 99% of the test FS size in the guest's memory 1.840

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

When I umount "/mnt" 0.341
Then I find very few patterns in the guest's memory after 3 seconds 4.790

Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)

After features/support/hooks.rb:339 1.066
After features/support/hooks.rb:108 0.000
32.207
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 6.881
And I prepare Tails for memory erasure tests 0.356
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.256
Then I find very few patterns in the guest's memory 1.690

Pattern coverage: 0.000% (0 MiB out of 1464 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.563
Then patterns cover at least 75% of the test FS size in the guest's memory 2.151

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

When I umount the USB drive 0.825
Then I find very few patterns in the guest's memory after 3 seconds 4.854

Pattern coverage: 0.000% (0 MiB out of 1464 MiB reference memory)

# read cache
When I mount the USB drive again 0.169
And I read the content of the test FS 0.435
Then patterns cover at least 99% of the test FS size in the guest's memory 2.007

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

When I umount the USB drive 0.381
Then I find very few patterns in the guest's memory after 3 seconds 4.632

Pattern coverage: 0.000% (0 MiB out of 1464 MiB reference memory)

After features/support/hooks.rb:339 1.020
After features/support/hooks.rb:108 0.000
59.139
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 6.652
And I prepare Tails for memory erasure tests 0.385
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 30.942
Then I find very few patterns in the guest's memory 1.721

Pattern coverage: 0.000% (0 MiB out of 1452 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.123
Then patterns cover at least 99% of the test FS size in the guest's memory 1.872

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

When I umount the USB drive 0.476
Then I find very few patterns in the guest's memory after 3 seconds 4.704

Pattern coverage: 0.000% (0 MiB out of 1452 MiB reference memory)

# read cache
When I mount the USB drive again 4.155
And I read the content of the test FS 0.322
Then patterns cover at least 99% of the test FS size in the guest's memory 1.870

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

When I umount the USB drive 0.383
Then I find very few patterns in the guest's memory after 3 seconds 4.528

Pattern coverage: 0.000% (0 MiB out of 1452 MiB reference memory)

After features/support/hooks.rb:339 0.649
After features/support/hooks.rb:108 0.000
1:4.858
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 6.602
And I prepare Tails for memory erasure tests 0.372
When I fill a 128 MiB file with a known pattern on the root filesystem 34.047
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.777
Then patterns cover at least 128 MiB in the guest's memory 1.539

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 20.513

Pattern coverage: 0.000% (0 MiB out of 1463 MiB reference memory)

After features/support/hooks.rb:339 3.713
After features/support/hooks.rb:108 0.000
4:44.239
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.004
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:57.832
And I prepare Tails for memory erasure tests 0.371
When I fill a 128 MiB file with a known pattern on the persistent filesystem 24.993
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 21.036

Pattern coverage: 0.000% (0 MiB out of 1449 MiB reference memory)

After features/support/hooks.rb:339 3.562
After features/support/hooks.rb:108 0.011