Project Number Date
test_Tails_ISO_stable 6182 03 Mar 2026, 11:42

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 7:13.778 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
19.215
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.703
And I prepare Tails for memory erasure tests 0.379
When I start a process allocating 128 MiB of memory with a known pattern 2.221
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.022 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.887
Then I find very few patterns in the guest's memory after 5 seconds 7.001 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
After features/support/hooks.rb:331 1.055
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
18.817
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.755
And I prepare Tails for memory erasure tests 0.373
And I find very few patterns in the guest's memory 1.821 
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 2.084
Then patterns cover at least 99% of the test FS size in the guest's memory 2.144 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.761
Then I find very few patterns in the guest's memory after 3 seconds 4.875 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
After features/support/hooks.rb:331 1.030
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
32.497
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 6.553
And I prepare Tails for memory erasure tests 0.323
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.175
Then I find very few patterns in the guest's memory 2.009 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.817
Then patterns cover at least 75% of the test FS size in the guest's memory 2.193 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.054
Then I find very few patterns in the guest's memory after 3 seconds 4.812 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
# read cache
When I mount the USB drive again 0.175
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 1.876 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.291
Then I find very few patterns in the guest's memory after 3 seconds 4.824 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
After features/support/hooks.rb:331 0.799
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
55.947
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.683
And I prepare Tails for memory erasure tests 0.383
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 27.956
Then I find very few patterns in the guest's memory 1.689 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.025
Then patterns cover at least 99% of the test FS size in the guest's memory 1.866 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.534
Then I find very few patterns in the guest's memory after 3 seconds 4.687 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
# read cache
When I mount the USB drive again 4.087
And I read the content of the test FS 0.272
Then patterns cover at least 99% of the test FS size in the guest's memory 1.732 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.360
Then I find very few patterns in the guest's memory after 3 seconds 4.667 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
After features/support/hooks.rb:331 0.838
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
44.728
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.775
And I prepare Tails for memory erasure tests 0.486
When I fill a 128 MiB file with a known pattern on the root filesystem 13.348
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.765
Then patterns cover at least 128 MiB in the guest's memory 1.679 
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 20.666 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
After features/support/hooks.rb:331 3.872
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:22.573
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:50.357
And I prepare Tails for memory erasure tests 0.395
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.785
When I trigger shutdown 0.007
Then I find very few patterns in the guest's memory after 20 seconds 21.026 
Pattern coverage: 0.000% (0 MiB out of 1510 MiB reference memory)
After features/support/hooks.rb:331 3.706
After features/support/hooks.rb:100 0.010