Project Number Date
test_Tails_ISO_stable 6722 05 Oct 2026, 12:26

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 7:44.730 Passed
Tags: @product @slow @not_release_blocker
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.
Tags: @product @slow @not_release_blocker
20.320
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 6.262
And I prepare Tails for memory erasure tests 0.349
When I start a process allocating 128 MiB of memory with a known pattern 2.253
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.943 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.807
Then I find very few patterns in the guest's memory after 5 seconds 7.703 
Pattern coverage: 0.000% (0 MiB out of 1413 MiB reference memory)
After features/support/hooks.rb:339 0.915
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
20.160
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 6.248
And I prepare Tails for memory erasure tests 0.316
And I find very few patterns in the guest's memory 3.105 
Pattern coverage: 0.000% (0 MiB out of 1419 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.422
Then patterns cover at least 99% of the test FS size in the guest's memory 2.997 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.381
Then I find very few patterns in the guest's memory after 3 seconds 5.688 
Pattern coverage: 0.000% (0 MiB out of 1419 MiB reference memory)
After features/support/hooks.rb:339 0.559
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
36.483
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 6.133
And I prepare Tails for memory erasure tests 0.401
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.533
Then I find very few patterns in the guest's memory 2.601 
Pattern coverage: 0.000% (0 MiB out of 1414 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.468
Then patterns cover at least 75% of the test FS size in the guest's memory 3.069 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.588
Then I find very few patterns in the guest's memory after 3 seconds 5.803 
Pattern coverage: 0.000% (0 MiB out of 1414 MiB reference memory)
# read cache
When I mount the USB drive again 0.255
And I read the content of the test FS 0.603
Then patterns cover at least 99% of the test FS size in the guest's memory 2.864 
Pattern coverage: 100.000% (127 MiB out of 127 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 5.756 
Pattern coverage: 0.000% (0 MiB out of 1414 MiB reference memory)
After features/support/hooks.rb:339 0.745
After features/support/hooks.rb:108 0.001
Tags: @product @slow @not_release_blocker
1:0.219
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.009
Given I have started Tails from DVD without network and logged in 6.352
And I prepare Tails for memory erasure tests 0.341
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 27.560
Then I find very few patterns in the guest's memory 2.554 
Pattern coverage: 0.000% (0 MiB out of 1414 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.276
Then patterns cover at least 99% of the test FS size in the guest's memory 2.733 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.479
Then I find very few patterns in the guest's memory after 3 seconds 5.638 
Pattern coverage: 0.000% (0 MiB out of 1414 MiB reference memory)
# read cache
When I mount the USB drive again 4.182
And I read the content of the test FS 0.342
Then patterns cover at least 99% of the test FS size in the guest's memory 2.709 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.481
Then I find very few patterns in the guest's memory after 3 seconds 5.566 
Pattern coverage: 0.000% (0 MiB out of 1414 MiB reference memory)
After features/support/hooks.rb:339 1.040
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
44.353
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 6.289
And I prepare Tails for memory erasure tests 0.372
When I fill a 128 MiB file with a known pattern on the root filesystem 13.324
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.335
Then patterns cover at least 128 MiB in the guest's memory 2.231 
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 20.793 
Pattern coverage: 0.000% (0 MiB out of 1403 MiB reference memory)
After features/support/hooks.rb:339 3.728
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:43.192
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 4:12.014
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 9.680
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.179 
Pattern coverage: 0.000% (0 MiB out of 1426 MiB reference memory)
After features/support/hooks.rb:339 3.502
After features/support/hooks.rb:108 0.011