Project Number Date
test_Tails_ISO_7929-celluloid-flatpak 80 01 Jul 2026, 14:42

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 8:3.982 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.
19.185
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.004
Given I have started Tails from DVD without network and logged in 6.845
And I prepare Tails for memory erasure tests 0.299
When I start a process allocating 128 MiB of memory with a known pattern 2.229
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.084

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

When I kill the allocating process 0.916
Then I find very few patterns in the guest's memory after 5 seconds 6.810

Pattern coverage: 0.000% (0 MiB out of 1469 MiB reference memory)

After features/support/hooks.rb:339 1.176
After features/support/hooks.rb:108 0.000
17.672
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 6.894
And I prepare Tails for memory erasure tests 0.489
And I find very few patterns in the guest's memory 1.755

Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.604
Then patterns cover at least 99% of the test FS size in the guest's memory 1.820

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

When I umount "/mnt" 0.367
Then I find very few patterns in the guest's memory after 3 seconds 4.739

Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)

After features/support/hooks.rb:339 0.641
After features/support/hooks.rb:108 0.000
32.643
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 7.116
And I prepare Tails for memory erasure tests 0.344
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.448
Then I find very few patterns in the guest's memory 1.605

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

# write cache
When I fill the USB drive with a known pattern 2.525
Then patterns cover at least 75% of the test FS size in the guest's memory 2.028

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

When I umount the USB drive 0.760
Then I find very few patterns in the guest's memory after 3 seconds 4.897

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

# read cache
When I mount the USB drive again 0.180
And I read the content of the test FS 0.490
Then patterns cover at least 99% of the test FS size in the guest's memory 2.067

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

When I umount the USB drive 0.407
Then I find very few patterns in the guest's memory after 3 seconds 4.771

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

After features/support/hooks.rb:339 0.650
After features/support/hooks.rb:108 0.000
58.958
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 6.500
And I prepare Tails for memory erasure tests 0.348
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.308
Then I find very few patterns in the guest's memory 1.884

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

# write cache
When I fill the USB drive with a known pattern 1.227
Then patterns cover at least 99% of the test FS size in the guest's memory 1.777

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

When I umount the USB drive 0.501
Then I find very few patterns in the guest's memory after 3 seconds 4.833

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

# read cache
When I mount the USB drive again 5.222
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 1.980

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

When I umount the USB drive 0.403
Then I find very few patterns in the guest's memory after 3 seconds 4.661

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

After features/support/hooks.rb:339 0.913
After features/support/hooks.rb:108 0.000
59.141
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 6.557
And I prepare Tails for memory erasure tests 0.367
When I fill a 128 MiB file with a known pattern on the root filesystem 28.328
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.841
Then patterns cover at least 128 MiB in the guest's memory 1.559

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 20.482

Pattern coverage: 0.000% (0 MiB out of 1459 MiB reference memory)

After features/support/hooks.rb:339 3.650
After features/support/hooks.rb:108 0.000
4:56.381
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 4:10.682
And I prepare Tails for memory erasure tests 0.314
When I fill a 128 MiB file with a known pattern on the persistent filesystem 24.312
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.067

Pattern coverage: 0.000% (0 MiB out of 1500 MiB reference memory)

After features/support/hooks.rb:339 3.416
After features/support/hooks.rb:108 0.010