Project Number Date
test_Tails_ISO_7929-celluloid-flatpak 64 16 Jun 2026, 15:19

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 8:20.635 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.
19.915
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 7.035
And I prepare Tails for memory erasure tests 0.394
When I start a process allocating 128 MiB of memory with a known pattern 2.187
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 3.154

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

When I kill the allocating process 0.196
Then I find very few patterns in the guest's memory after 5 seconds 6.945

Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)

After features/support/hooks.rb:339 0.896
After features/support/hooks.rb:108 0.000
18.748
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.023
Given I have started Tails from DVD without network and logged in 6.959
And I prepare Tails for memory erasure tests 0.386
And I find very few patterns in the guest's memory 1.739

Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.789
Then patterns cover at least 99% of the test FS size in the guest's memory 2.498

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

When I umount "/mnt" 0.408
Then I find very few patterns in the guest's memory after 3 seconds 4.965

Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)

After features/support/hooks.rb:339 1.095
After features/support/hooks.rb:108 0.000
34.806
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 7.007
And I prepare Tails for memory erasure tests 0.390
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.932
Then I find very few patterns in the guest's memory 2.228

Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.894
Then patterns cover at least 75% of the test FS size in the guest's memory 2.453

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

When I umount the USB drive 0.735
Then I find very few patterns in the guest's memory after 3 seconds 4.876

Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)

# read cache
When I mount the USB drive again 0.156
And I read the content of the test FS 0.448
Then patterns cover at least 99% of the test FS size in the guest's memory 2.206

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

When I umount the USB drive 0.512
Then I find very few patterns in the guest's memory after 3 seconds 4.962

Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)

After features/support/hooks.rb:339 1.022
After features/support/hooks.rb:108 0.000
59.973
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.032
Given I have started Tails from DVD without network and logged in 7.655
And I prepare Tails for memory erasure tests 0.356
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.853
Then I find very few patterns in the guest's memory 1.915

Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.509
Then patterns cover at least 99% of the test FS size in the guest's memory 2.221

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

When I umount the USB drive 0.552
Then I find very few patterns in the guest's memory after 3 seconds 4.738

Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)

# read cache
When I mount the USB drive again 4.117
And I read the content of the test FS 0.371
Then patterns cover at least 99% of the test FS size in the guest's memory 2.121

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

When I umount the USB drive 0.599
Then I find very few patterns in the guest's memory after 3 seconds 4.959

Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)

After features/support/hooks.rb:339 1.231
After features/support/hooks.rb:108 0.000
57.156
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.020
Given I have started Tails from DVD without network and logged in 7.782
And I prepare Tails for memory erasure tests 0.462
When I fill a 128 MiB file with a known pattern on the root filesystem 24.218
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.111
Then patterns cover at least 128 MiB in the guest's memory 1.943

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

When I trigger shutdown 0.011
Then I find very few patterns in the guest's memory after 20 seconds 20.626

Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)

After features/support/hooks.rb:339 3.502
After features/support/hooks.rb:108 0.000
5:10.035
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.020
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:31.329
And I prepare Tails for memory erasure tests 0.566
When I fill a 128 MiB file with a known pattern on the persistent filesystem 17.132
When I trigger shutdown 0.008
Then I find very few patterns in the guest's memory after 20 seconds 20.999

Pattern coverage: 0.000% (0 MiB out of 1514 MiB reference memory)

After features/support/hooks.rb:339 3.767
After features/support/hooks.rb:108 0.126