Project Number Date
test_Tails_ISO_7929-celluloid-flatpak 62 14 Jun 2026, 14:22

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 7:45.026 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.
19.530
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.018
Given I have started Tails from DVD without network and logged in 7.314
And I prepare Tails for memory erasure tests 0.389
When I start a process allocating 128 MiB of memory with a known pattern 2.198
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.938

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

When I kill the allocating process 0.989
Then I find very few patterns in the guest's memory after 5 seconds 6.701

Pattern coverage: 0.000% (0 MiB out of 1448 MiB reference memory)

After features/support/hooks.rb:339 0.736
After features/support/hooks.rb:108 0.000
18.041
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.026
Given I have started Tails from DVD without network and logged in 6.971
And I prepare Tails for memory erasure tests 0.428
And I find very few patterns in the guest's memory 1.765

Pattern coverage: 0.000% (0 MiB out of 1451 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.769
Then patterns cover at least 99% of the test FS size in the guest's memory 1.896

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

When I umount "/mnt" 0.385
Then I find very few patterns in the guest's memory after 3 seconds 4.825

Pattern coverage: 0.000% (0 MiB out of 1451 MiB reference memory)

After features/support/hooks.rb:339 0.702
After features/support/hooks.rb:108 0.000
32.716
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.019
Given I have started Tails from DVD without network and logged in 7.008
And I prepare Tails for memory erasure tests 0.367
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.425
Then I find very few patterns in the guest's memory 2.017

Pattern coverage: 0.000% (0 MiB out of 1451 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 2.331

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

When I umount the USB drive 0.720
Then I find very few patterns in the guest's memory after 3 seconds 4.820

Pattern coverage: 0.000% (0 MiB out of 1451 MiB reference memory)

# read cache
When I mount the USB drive again 0.140
And I read the content of the test FS 0.423
Then patterns cover at least 99% of the test FS size in the guest's memory 1.864

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

When I umount the USB drive 0.331
Then I find very few patterns in the guest's memory after 3 seconds 4.698

Pattern coverage: 0.000% (0 MiB out of 1451 MiB reference memory)

After features/support/hooks.rb:339 1.309
After features/support/hooks.rb:108 0.000
1:0.547
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.018
Given I have started Tails from DVD without network and logged in 7.161
And I prepare Tails for memory erasure tests 0.366
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 30.892
Then I find very few patterns in the guest's memory 2.116

Pattern coverage: 0.000% (0 MiB out of 1451 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.390
Then patterns cover at least 99% of the test FS size in the guest's memory 2.081

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

When I umount the USB drive 0.542
Then I find very few patterns in the guest's memory after 3 seconds 4.690

Pattern coverage: 0.000% (0 MiB out of 1451 MiB reference memory)

# read cache
When I mount the USB drive again 4.001
And I read the content of the test FS 0.297
Then patterns cover at least 99% of the test FS size in the guest's memory 1.770

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

When I umount the USB drive 0.461
Then I find very few patterns in the guest's memory after 3 seconds 4.774

Pattern coverage: 0.000% (0 MiB out of 1451 MiB reference memory)

After features/support/hooks.rb:339 0.773
After features/support/hooks.rb:108 0.000
57.192
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.038
Given I have started Tails from DVD without network and logged in 7.171
And I prepare Tails for memory erasure tests 0.447
When I fill a 128 MiB file with a known pattern on the root filesystem 25.808
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.680
Then patterns cover at least 128 MiB in the guest's memory 1.540

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

When I trigger shutdown 0.013
Then I find very few patterns in the guest's memory after 20 seconds 20.530

Pattern coverage: 0.000% (0 MiB out of 1446 MiB reference memory)

After features/support/hooks.rb:339 3.387
After features/support/hooks.rb:108 0.000
4:36.998
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.035
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:59.932
And I prepare Tails for memory erasure tests 0.405
When I fill a 128 MiB file with a known pattern on the persistent filesystem 15.802
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.852

Pattern coverage: 0.000% (0 MiB out of 1516 MiB reference memory)

After features/support/hooks.rb:339 3.727
After features/support/hooks.rb:108 0.026