Project Number Date
test_Tails_ISO_stable 6484 01 Jul 2026, 07:32

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 7:50.493 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
18.519
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 6.582
And I prepare Tails for memory erasure tests 0.426
When I start a process allocating 128 MiB of memory with a known pattern 2.200
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.946 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.684
Then I find very few patterns in the guest's memory after 5 seconds 6.678 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
After features/support/hooks.rb:339 0.733
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
16.900
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 6.430
And I prepare Tails for memory erasure tests 0.404
And I find very few patterns in the guest's memory 1.735 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.442
Then patterns cover at least 99% of the test FS size in the guest's memory 1.843 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.277
Then I find very few patterns in the guest's memory after 3 seconds 4.766 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
After features/support/hooks.rb:339 0.891
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
31.317
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 6.410
And I prepare Tails for memory erasure tests 0.310
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.233
Then I find very few patterns in the guest's memory 1.847 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.432
Then patterns cover at least 75% of the test FS size in the guest's memory 1.995 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.679
Then I find very few patterns in the guest's memory after 3 seconds 4.633 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
# read cache
When I mount the USB drive again 0.131
And I read the content of the test FS 0.443
Then patterns cover at least 99% 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 0.306
Then I find very few patterns in the guest's memory after 3 seconds 4.948 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
After features/support/hooks.rb:339 0.888
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
57.466
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 6.477
And I prepare Tails for memory erasure tests 0.440
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.768
Then I find very few patterns in the guest's memory 1.674 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.366
Then patterns cover at least 99% of the test FS size in the guest's memory 1.726 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.606
Then I find very few patterns in the guest's memory after 3 seconds 4.562 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
# read cache
When I mount the USB drive again 3.719
And I read the content of the test FS 0.278
Then patterns cover at least 99% of the test FS size in the guest's memory 1.760 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.412
Then I find very few patterns in the guest's memory after 3 seconds 4.672 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:339 0.799
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:6.559
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 6.578
And I prepare Tails for memory erasure tests 0.320
When I fill a 128 MiB file with a known pattern on the root filesystem 35.677
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.858
Then patterns cover at least 128 MiB in the guest's memory 1.633 
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 20.485 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
After features/support/hooks.rb:339 3.550
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:39.728
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 3:52.224
And I prepare Tails for memory erasure tests 0.295
When I fill a 128 MiB file with a known pattern on the persistent filesystem 26.328
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.875 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
After features/support/hooks.rb:339 3.505
After features/support/hooks.rb:108 0.015