Project Number Date
test_Tails_ISO_21565-flatpak-safe 89 15 Oct 2026, 03:30

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 7:18.319 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.
31.471
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 17.772
And I prepare Tails for memory erasure tests 0.319
When I start a process allocating 128 MiB of memory with a known pattern 2.178
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.865

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

When I kill the allocating process 0.205
Then I find very few patterns in the guest's memory after 5 seconds 8.130

Pattern coverage: 0.000% (0 MiB out of 1393 MiB reference memory)

After features/support/hooks.rb:339 0.781
After features/support/hooks.rb:108 0.000
19.675
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 6.230
And I prepare Tails for memory erasure tests 0.356
And I find very few patterns in the guest's memory 2.454

Pattern coverage: 0.000% (0 MiB out of 1405 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.397
Then patterns cover at least 99% of the test FS size in the guest's memory 2.948

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

When I umount "/mnt" 0.403
Then I find very few patterns in the guest's memory after 3 seconds 5.884

Pattern coverage: 0.000% (0 MiB out of 1405 MiB reference memory)

After features/support/hooks.rb:339 1.032
After features/support/hooks.rb:108 0.000
36.163
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 6.255
And I prepare Tails for memory erasure tests 0.285
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.166
Then I find very few patterns in the guest's memory 2.645

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

# write cache
When I fill the USB drive with a known pattern 2.442
Then patterns cover at least 75% of the test FS size in the guest's memory 3.151

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

When I umount the USB drive 0.707
Then I find very few patterns in the guest's memory after 3 seconds 5.840

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

# read cache
When I mount the USB drive again 0.167
And I read the content of the test FS 0.596
Then patterns cover at least 99% of the test FS size in the guest's memory 2.839

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

When I umount the USB drive 0.435
Then I find very few patterns in the guest's memory after 3 seconds 5.630

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

After features/support/hooks.rb:339 0.667
After features/support/hooks.rb:108 0.000
59.842
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 6.228
And I prepare Tails for memory erasure tests 0.298
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 27.931
Then I find very few patterns in the guest's memory 2.397

Pattern coverage: 0.000% (0 MiB out of 1395 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.099
Then patterns cover at least 99% of the test FS size in the guest's memory 3.046

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

When I umount the USB drive 0.520
Then I find very few patterns in the guest's memory after 3 seconds 5.488

Pattern coverage: 0.000% (0 MiB out of 1395 MiB reference memory)

# read cache
When I mount the USB drive again 3.846
And I read the content of the test FS 0.324
Then patterns cover at least 99% of the test FS size in the guest's memory 2.619

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 5.579

Pattern coverage: 0.000% (0 MiB out of 1395 MiB reference memory)

After features/support/hooks.rb:339 0.987
After features/support/hooks.rb:108 0.000
43.097
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 6.263
And I prepare Tails for memory erasure tests 0.315
When I fill a 128 MiB file with a known pattern on the root filesystem 11.570
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.848
Then patterns cover at least 128 MiB in the guest's memory 2.325

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 20.769

Pattern coverage: 0.000% (0 MiB out of 1406 MiB reference memory)

After features/support/hooks.rb:339 3.434
After features/support/hooks.rb:108 0.000
4:8.069
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 3:37.536
And I prepare Tails for memory erasure tests 0.297
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.109
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 21.119

Pattern coverage: 0.000% (0 MiB out of 1443 MiB reference memory)

After features/support/hooks.rb:339 3.583
After features/support/hooks.rb:108 0.008