Project Number Date
test_Tails_ISO_21565-flatpak-safe 33 13 Sep 2026, 03:21

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 7:28.517 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.
20.026
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 6.134
And I prepare Tails for memory erasure tests 0.283
When I start a process allocating 128 MiB of memory with a known pattern 2.166
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.793

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

When I kill the allocating process 0.705
Then I find very few patterns in the guest's memory after 5 seconds 7.941

Pattern coverage: 0.000% (0 MiB out of 1408 MiB reference memory)

After features/support/hooks.rb:339 0.716
After features/support/hooks.rb:108 0.000
19.598
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 6.170
And I prepare Tails for memory erasure tests 0.275
And I find very few patterns in the guest's memory 2.665

Pattern coverage: 0.000% (0 MiB out of 1423 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.626
Then patterns cover at least 99% of the test FS size in the guest's memory 2.808

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

When I umount "/mnt" 0.453
Then I find very few patterns in the guest's memory after 3 seconds 5.597

Pattern coverage: 0.000% (0 MiB out of 1423 MiB reference memory)

After features/support/hooks.rb:339 0.555
After features/support/hooks.rb:108 0.000
36.416
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 6.148
And I prepare Tails for memory erasure tests 0.324
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.277
Then I find very few patterns in the guest's memory 2.670

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

# write cache
When I fill the USB drive with a known pattern 2.684
Then patterns cover at least 75% of the test FS size in the guest's memory 3.018

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

When I umount the USB drive 0.721
Then I find very few patterns in the guest's memory after 3 seconds 5.707

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

# read cache
When I mount the USB drive again 0.200
And I read the content of the test FS 0.562
Then patterns cover at least 99% of the test FS size in the guest's memory 2.860

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

When I umount the USB drive 0.456
Then I find very few patterns in the guest's memory after 3 seconds 5.783

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

After features/support/hooks.rb:339 0.807
After features/support/hooks.rb:108 0.000
1:1.853
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 6.295
And I prepare Tails for memory erasure tests 0.287
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.998
Then I find very few patterns in the guest's memory 2.525

Pattern coverage: 0.000% (0 MiB out of 1425 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.247
Then patterns cover at least 99% of the test FS size in the guest's memory 2.645

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

When I umount the USB drive 0.482
Then I find very few patterns in the guest's memory after 3 seconds 5.521

Pattern coverage: 0.000% (0 MiB out of 1425 MiB reference memory)

# read cache
When I mount the USB drive again 3.891
And I read the content of the test FS 0.370
Then patterns cover at least 99% of the test FS size in the guest's memory 2.667

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

When I umount the USB drive 0.505
Then I find very few patterns in the guest's memory after 3 seconds 5.415

Pattern coverage: 0.000% (0 MiB out of 1425 MiB reference memory)

After features/support/hooks.rb:339 0.866
After features/support/hooks.rb:108 0.000
55.820
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 17.813
And I prepare Tails for memory erasure tests 0.269
When I fill a 128 MiB file with a known pattern on the root filesystem 13.526
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.378
Then patterns cover at least 128 MiB in the guest's memory 2.109

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

When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.717

Pattern coverage: 0.000% (0 MiB out of 1408 MiB reference memory)

After features/support/hooks.rb:339 3.717
After features/support/hooks.rb:108 0.000
4:14.802
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:43.284
And I prepare Tails for memory erasure tests 0.244
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.067
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 21.199

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

After features/support/hooks.rb:339 3.398
After features/support/hooks.rb:108 0.009