Project Number Date
test_Tails_ISO_stable 6641 06 Sep 2026, 11:37

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 7:46.780 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
20.610
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 6.483
And I prepare Tails for memory erasure tests 0.368
When I start a process allocating 128 MiB of memory with a known pattern 2.204
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 3.400 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.206
Then I find very few patterns in the guest's memory after 5 seconds 7.947 
Pattern coverage: 0.000% (0 MiB out of 1401 MiB reference memory)
After features/support/hooks.rb:339 0.603
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
20.144
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 6.630
And I prepare Tails for memory erasure tests 0.322
And I find very few patterns in the guest's memory 2.715 
Pattern coverage: 0.000% (0 MiB out of 1406 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.567
Then patterns cover at least 99% of the test FS size in the guest's memory 2.875 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.357
Then I find very few patterns in the guest's memory after 3 seconds 5.675 
Pattern coverage: 0.000% (0 MiB out of 1406 MiB reference memory)
After features/support/hooks.rb:339 0.773
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
38.347
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.005
Given I have started Tails from DVD without network and logged in 6.679
And I prepare Tails for memory erasure tests 0.338
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.244
Then I find very few patterns in the guest's memory 2.727 
Pattern coverage: 0.000% (0 MiB out of 1409 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.594
Then patterns cover at least 75% of the test FS size in the guest's memory 3.485 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.707
Then I find very few patterns in the guest's memory after 3 seconds 5.759 
Pattern coverage: 0.000% (0 MiB out of 1409 MiB reference memory)
# read cache
When I mount the USB drive again 0.155
And I read the content of the test FS 0.550
Then patterns cover at least 99% of the test FS size in the guest's memory 3.093 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.475
Then I find very few patterns in the guest's memory after 3 seconds 6.538 
Pattern coverage: 0.000% (0 MiB out of 1409 MiB reference memory)
After features/support/hooks.rb:339 0.849
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:7.691
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 6.483
And I prepare Tails for memory erasure tests 0.325
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 34.834
Then I find very few patterns in the guest's memory 2.863 
Pattern coverage: 0.000% (0 MiB out of 1411 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.123
Then patterns cover at least 99% of the test FS size in the guest's memory 2.764 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.564
Then I find very few patterns in the guest's memory after 3 seconds 5.744 
Pattern coverage: 0.000% (0 MiB out of 1411 MiB reference memory)
# read cache
When I mount the USB drive again 3.777
And I read the content of the test FS 0.357
Then patterns cover at least 99% of the test FS size in the guest's memory 2.867 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.421
Then I find very few patterns in the guest's memory after 3 seconds 5.564 
Pattern coverage: 0.000% (0 MiB out of 1411 MiB reference memory)
After features/support/hooks.rb:339 0.964
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
44.325
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.006
Given I have started Tails from DVD without network and logged in 6.526
And I prepare Tails for memory erasure tests 0.322
When I fill a 128 MiB file with a known pattern on the root filesystem 12.974
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.479
Then patterns cover at least 128 MiB in the guest's memory 2.257 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.759 
Pattern coverage: 0.000% (0 MiB out of 1414 MiB reference memory)
After features/support/hooks.rb:339 3.713
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:35.660
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:4.393
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 9.780
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.125 
Pattern coverage: 0.000% (0 MiB out of 1414 MiB reference memory)
After features/support/hooks.rb:339 3.498
After features/support/hooks.rb:108 0.028