Project Number Date
test_Tails_ISO_21565-flatpak-safe 101 26 Oct 2026, 18:55

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 7:17.886 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.
19.984
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 6.207
And I prepare Tails for memory erasure tests 0.310
When I start a process allocating 128 MiB of memory with a known pattern 2.302
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.878

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

When I kill the allocating process 0.719
Then I find very few patterns in the guest's memory after 5 seconds 7.566

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

After features/support/hooks.rb:339 0.748
After features/support/hooks.rb:108 0.000
19.355
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 6.217
And I prepare Tails for memory erasure tests 0.293
And I find very few patterns in the guest's memory 2.686

Pattern coverage: 0.000% (0 MiB out of 1426 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.335
Then patterns cover at least 99% of the test FS size in the guest's memory 2.814

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

When I umount "/mnt" 0.350
Then I find very few patterns in the guest's memory after 3 seconds 5.657

Pattern coverage: 0.000% (0 MiB out of 1426 MiB reference memory)

After features/support/hooks.rb:339 0.842
After features/support/hooks.rb:108 0.000
36.107
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 6.203
And I prepare Tails for memory erasure tests 0.274
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.466
Then I find very few patterns in the guest's memory 2.649

Pattern coverage: 0.000% (0 MiB out of 1432 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.487
Then patterns cover at least 75% of the test FS size in the guest's memory 3.013

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

When I umount the USB drive 0.660
Then I find very few patterns in the guest's memory after 3 seconds 5.685

Pattern coverage: 0.000% (0 MiB out of 1432 MiB reference memory)

# read cache
When I mount the USB drive again 0.191
And I read the content of the test FS 0.626
Then patterns cover at least 99% of the test FS size in the guest's memory 2.935

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

When I umount the USB drive 0.379
Then I find very few patterns in the guest's memory after 3 seconds 5.534

Pattern coverage: 0.000% (0 MiB out of 1432 MiB reference memory)

After features/support/hooks.rb:339 0.576
After features/support/hooks.rb:108 0.000
1:1.289
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 6.242
And I prepare Tails for memory erasure tests 0.337
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.982
Then I find very few patterns in the guest's memory 2.558

Pattern coverage: 0.000% (0 MiB out of 1426 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.108
Then patterns cover at least 99% of the test FS size in the guest's memory 2.650

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

When I umount the USB drive 0.534
Then I find very few patterns in the guest's memory after 3 seconds 5.707

Pattern coverage: 0.000% (0 MiB out of 1426 MiB reference memory)

# read cache
When I mount the USB drive again 4.135
And I read the content of the test FS 0.354
Then patterns cover at least 99% of the test FS size in the guest's memory 2.643

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 5.550

Pattern coverage: 0.000% (0 MiB out of 1426 MiB reference memory)

After features/support/hooks.rb:339 0.989
After features/support/hooks.rb:108 0.000
44.487
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 6.300
And I prepare Tails for memory erasure tests 0.301
When I fill a 128 MiB file with a known pattern on the root filesystem 13.346
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.369
Then patterns cover at least 128 MiB in the guest's memory 2.418

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 20.745

Pattern coverage: 0.000% (0 MiB out of 1411 MiB reference memory)

After features/support/hooks.rb:339 3.531
After features/support/hooks.rb:108 0.000
4:16.661
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 3:44.523
And I prepare Tails for memory erasure tests 0.313
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.448
When I trigger shutdown 0.009
Then I find very few patterns in the guest's memory after 20 seconds 21.366

Pattern coverage: 0.000% (0 MiB out of 1428 MiB reference memory)

After features/support/hooks.rb:339 3.524
After features/support/hooks.rb:108 0.009