Project Number Date
test_Tails_ISO_stable 6447 16 Jun 2026, 11:48

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 8:3.732 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
19.028
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.011
Given I have started Tails from DVD without network and logged in 7.020
And I prepare Tails for memory erasure tests 0.423
When I start a process allocating 128 MiB of memory with a known pattern 2.257
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.301 
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 6.785 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
After features/support/hooks.rb:339 0.761
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
19.058
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.011
Given I have started Tails from DVD without network and logged in 7.445
And I prepare Tails for memory erasure tests 0.609
And I find very few patterns in the guest's memory 2.069 
Pattern coverage: 0.000% (0 MiB out of 1463 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.676
Then patterns cover at least 99% of the test FS size in the guest's memory 2.223 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.324
Then I find very few patterns in the guest's memory after 3 seconds 4.709 
Pattern coverage: 0.000% (0 MiB out of 1463 MiB reference memory)
After features/support/hooks.rb:339 0.778
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
33.942
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.012
Given I have started Tails from DVD without network and logged in 6.911
And I prepare Tails for memory erasure tests 0.406
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.945
Then I find very few patterns in the guest's memory 2.020 
Pattern coverage: 0.000% (0 MiB out of 1463 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.491
Then patterns cover at least 75% of the test FS size in the guest's memory 1.942 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.664
Then I find very few patterns in the guest's memory after 3 seconds 4.977 
Pattern coverage: 0.000% (0 MiB out of 1463 MiB reference memory)
# read cache
When I mount the USB drive again 0.158
And I read the content of the test FS 0.505
Then patterns cover at least 99% of the test FS size in the guest's memory 2.415 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.389
Then I find very few patterns in the guest's memory after 3 seconds 5.113 
Pattern coverage: 0.000% (0 MiB out of 1463 MiB reference memory)
After features/support/hooks.rb:339 0.825
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:0.415
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.012
Given I have started Tails from DVD without network and logged in 7.133
And I prepare Tails for memory erasure tests 0.489
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.653
Then I find very few patterns in the guest's memory 1.858 
Pattern coverage: 0.000% (0 MiB out of 1463 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.562
Then patterns cover at least 99% of the test FS size in the guest's memory 1.870 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.520
Then I find very few patterns in the guest's memory after 3 seconds 4.979 
Pattern coverage: 0.000% (0 MiB out of 1463 MiB reference memory)
# read cache
When I mount the USB drive again 4.185
And I read the content of the test FS 0.340
Then patterns cover at least 99% of the test FS size in the guest's memory 2.199 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.479
Then I find very few patterns in the guest's memory after 3 seconds 5.144 
Pattern coverage: 0.000% (0 MiB out of 1463 MiB reference memory)
After features/support/hooks.rb:339 0.955
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
55.327
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.012
Given I have started Tails from DVD without network and logged in 6.973
And I prepare Tails for memory erasure tests 0.454
When I fill a 128 MiB file with a known pattern on the root filesystem 22.927
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.553
Then patterns cover at least 128 MiB in the guest's memory 1.666 
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 20.745 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
After features/support/hooks.rb:339 3.860
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:55.960
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.022
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:18.279
And I prepare Tails for memory erasure tests 0.357
When I fill a 128 MiB file with a known pattern on the persistent filesystem 16.311
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.006 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
After features/support/hooks.rb:339 3.925
After features/support/hooks.rb:108 0.030