Project Number Date
test_Tails_ISO_devel 4428 03 Jun 2026, 11:28

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 7:15.883 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
17.211
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.699
And I prepare Tails for memory erasure tests 0.363
When I start a process allocating 128 MiB of memory with a known pattern 1.177
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.052 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.195
Then I find very few patterns in the guest's memory after 5 seconds 6.724 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
After features/support/hooks.rb:335 0.993
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
17.271
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.618
And I prepare Tails for memory erasure tests 0.349
And I find very few patterns in the guest's memory 1.778 
Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.632
Then patterns cover at least 99% of the test FS size in the guest's memory 1.950 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.320
Then I find very few patterns in the guest's memory after 3 seconds 4.621 
Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)
After features/support/hooks.rb:335 1.156
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
31.364
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.472
And I prepare Tails for memory erasure tests 0.465
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.236
Then I find very few patterns in the guest's memory 1.704 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.551
Then patterns cover at least 75% of the test FS size in the guest's memory 1.944 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.794
Then I find very few patterns in the guest's memory after 3 seconds 4.742 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
# read cache
When I mount the USB drive again 0.155
And I read the content of the test FS 0.389
Then patterns cover at least 99% of the test FS size in the guest's memory 1.882 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.304
Then I find very few patterns in the guest's memory after 3 seconds 4.719 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
After features/support/hooks.rb:335 0.874
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
57.108
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.595
And I prepare Tails for memory erasure tests 0.332
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.012
Then I find very few patterns in the guest's memory 1.688 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.435
Then patterns cover at least 99% of the test FS size in the guest's memory 1.844 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.593
Then I find very few patterns in the guest's memory after 3 seconds 4.679 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
# read cache
When I mount the USB drive again 3.618
And I read the content of the test FS 0.320
Then patterns cover at least 99% of the test FS size in the guest's memory 1.852 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.453
Then I find very few patterns in the guest's memory after 3 seconds 4.682 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:335 0.674
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
52.675
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.621
And I prepare Tails for memory erasure tests 0.377
When I fill a 128 MiB file with a known pattern on the root filesystem 21.496
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.093
Then patterns cover at least 128 MiB in the guest's memory 1.537 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.007
Then I find very few patterns in the guest's memory after 20 seconds 20.542 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
After features/support/hooks.rb:335 3.367
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
4:20.251
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:40.595
And I prepare Tails for memory erasure tests 0.339
When I fill a 128 MiB file with a known pattern on the persistent filesystem 18.475
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.836 
Pattern coverage: 0.000% (0 MiB out of 1524 MiB reference memory)
After features/support/hooks.rb:335 3.452
After features/support/hooks.rb:104 0.008