Project Number Date
test_Tails_ISO_devel 4662 07 Oct 2026, 11:36

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 7:27.360 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
19.877
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 6.383
And I prepare Tails for memory erasure tests 0.343
When I start a process allocating 128 MiB of memory with a known pattern 2.201
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.915 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.240
Then I find very few patterns in the guest's memory after 5 seconds 7.793 
Pattern coverage: 0.000% (0 MiB out of 1411 MiB reference memory)
After features/support/hooks.rb:339 0.882
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
20.415
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 6.579
And I prepare Tails for memory erasure tests 0.318
And I find very few patterns in the guest's memory 2.641 
Pattern coverage: 0.000% (0 MiB out of 1418 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.482
Then patterns cover at least 99% of the test FS size in the guest's memory 3.034 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.325
Then I find very few patterns in the guest's memory after 3 seconds 6.033 
Pattern coverage: 0.000% (0 MiB out of 1418 MiB reference memory)
After features/support/hooks.rb:339 0.803
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
37.925
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 6.657
And I prepare Tails for memory erasure tests 0.308
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.674
Then I find very few patterns in the guest's memory 3.056 
Pattern coverage: 0.000% (0 MiB out of 1408 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.416
Then patterns cover at least 75% of the test FS size in the guest's memory 3.343 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.617
Then I find very few patterns in the guest's memory after 3 seconds 5.671 
Pattern coverage: 0.000% (0 MiB out of 1408 MiB reference memory)
# read cache
When I mount the USB drive again 0.195
And I read the content of the test FS 0.602
Then patterns cover at least 99% of the test FS size in the guest's memory 2.960 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.415
Then I find very few patterns in the guest's memory after 3 seconds 6.005 
Pattern coverage: 0.000% (0 MiB out of 1408 MiB reference memory)
After features/support/hooks.rb:339 0.858
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:4.625
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 6.542
And I prepare Tails for memory erasure tests 0.335
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 31.470
Then I find very few patterns in the guest's memory 2.638 
Pattern coverage: 0.000% (0 MiB out of 1420 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.086
Then patterns cover at least 99% of the test FS size in the guest's memory 2.809 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.558
Then I find very few patterns in the guest's memory after 3 seconds 5.632 
Pattern coverage: 0.000% (0 MiB out of 1420 MiB reference memory)
# read cache
When I mount the USB drive again 3.598
And I read the content of the test FS 0.526
Then patterns cover at least 99% of the test FS size in the guest's memory 3.069 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.456
Then I find very few patterns in the guest's memory after 3 seconds 5.900 
Pattern coverage: 0.000% (0 MiB out of 1420 MiB reference memory)
After features/support/hooks.rb:339 0.681
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
44.795
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 6.353
And I prepare Tails for memory erasure tests 0.427
When I fill a 128 MiB file with a known pattern on the root filesystem 13.514
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.494
Then patterns cover at least 128 MiB in the guest's memory 2.224 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.774 
Pattern coverage: 0.000% (0 MiB out of 1420 MiB reference memory)
After features/support/hooks.rb:339 3.746
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:19.721
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:48.047
And I prepare Tails for memory erasure tests 0.301
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.198
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.169 
Pattern coverage: 0.000% (0 MiB out of 1428 MiB reference memory)
After features/support/hooks.rb:339 3.494
After features/support/hooks.rb:108 0.013