Project Number Date
test_Tails_ISO_stable 6380 15 May 2026, 11:44

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 7:50.895 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
17.757
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails from DVD without network and logged in 6.814
And I prepare Tails for memory erasure tests 0.347
When I start a process allocating 128 MiB of memory with a known pattern 1.173
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.888 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.252
Then I find very few patterns in the guest's memory after 5 seconds 7.281 
Pattern coverage: 0.000% (0 MiB out of 1518 MiB reference memory)
After features/support/hooks.rb:335 1.038
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
17.869
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails from DVD without network and logged in 7.006
And I prepare Tails for memory erasure tests 0.355
And I find very few patterns in the guest's memory 1.701 
Pattern coverage: 0.000% (0 MiB out of 1532 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.528
Then patterns cover at least 99% of the test FS size in the guest's memory 1.909 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.352
Then I find very few patterns in the guest's memory after 3 seconds 5.016 
Pattern coverage: 0.000% (0 MiB out of 1532 MiB reference memory)
After features/support/hooks.rb:335 0.916
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
32.690
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails from DVD without network and logged in 6.709
And I prepare Tails for memory erasure tests 0.329
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.331
Then I find very few patterns in the guest's memory 1.806 
Pattern coverage: 0.000% (0 MiB out of 1528 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.700
Then patterns cover at least 75% of the test FS size in the guest's memory 2.320 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.672
Then I find very few patterns in the guest's memory after 3 seconds 4.956 
Pattern coverage: 0.000% (0 MiB out of 1528 MiB reference memory)
# read cache
When I mount the USB drive again 0.182
And I read the content of the test FS 0.470
Then patterns cover at least 99% of the test FS size in the guest's memory 2.101 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.355
Then I find very few patterns in the guest's memory after 3 seconds 4.752 
Pattern coverage: 0.000% (0 MiB out of 1528 MiB reference memory)
After features/support/hooks.rb:335 0.565
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
56.887
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails from DVD without network and logged in 6.849
And I prepare Tails for memory erasure tests 0.400
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 27.476
Then I find very few patterns in the guest's memory 1.767 
Pattern coverage: 0.000% (0 MiB out of 1525 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.294
Then patterns cover at least 99% of the test FS size in the guest's memory 1.863 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.541
Then I find very few patterns in the guest's memory after 3 seconds 5.240 
Pattern coverage: 0.000% (0 MiB out of 1525 MiB reference memory)
# read cache
When I mount the USB drive again 3.972
And I read the content of the test FS 0.313
Then patterns cover at least 99% of the test FS size in the guest's memory 2.067 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.454
Then I find very few patterns in the guest's memory after 3 seconds 4.648 
Pattern coverage: 0.000% (0 MiB out of 1525 MiB reference memory)
After features/support/hooks.rb:335 0.861
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
59.136
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails from DVD without network and logged in 6.661
And I prepare Tails for memory erasure tests 0.476
When I fill a 128 MiB file with a known pattern on the root filesystem 27.839
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.048
Then patterns cover at least 128 MiB in the guest's memory 1.570 
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 20.533 
Pattern coverage: 0.000% (0 MiB out of 1533 MiB reference memory)
After features/support/hooks.rb:335 3.439
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
4:46.553
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:7.039
And I prepare Tails for memory erasure tests 0.443
When I fill a 128 MiB file with a known pattern on the persistent filesystem 17.976
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.089 
Pattern coverage: 0.000% (0 MiB out of 1508 MiB reference memory)
After features/support/hooks.rb:335 3.874
After features/support/hooks.rb:104 0.025