Project Number Date
test_Tails_ISO_devel 4577 30 Aug 2026, 11:13

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 8:13.319 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
21.886
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 6.414
And I prepare Tails for memory erasure tests 0.383
When I start a process allocating 128 MiB of memory with a known pattern 2.220
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.698 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.234
Then I find very few patterns in the guest's memory after 5 seconds 9.935 
Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)
After features/support/hooks.rb:339 0.866
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
43.766
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 18.737
And I prepare Tails for memory erasure tests 0.326
And I find very few patterns in the guest's memory 5.638 
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 1.680
Then patterns cover at least 99% of the test FS size in the guest's memory 8.887 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.429
Then I find very few patterns in the guest's memory after 3 seconds 8.067 
Pattern coverage: 0.000% (0 MiB out of 1463 MiB reference memory)
After features/support/hooks.rb:339 0.999
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
47.732
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 6.396
And I prepare Tails for memory erasure tests 0.329
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.198
Then I find very few patterns in the guest's memory 4.772 
Pattern coverage: 0.000% (0 MiB out of 1462 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.453
Then patterns cover at least 75% of the test FS size in the guest's memory 5.648 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.919
Then I find very few patterns in the guest's memory after 3 seconds 7.971 
Pattern coverage: 0.000% (0 MiB out of 1462 MiB reference memory)
# read cache
When I mount the USB drive again 0.172
And I read the content of the test FS 0.615
Then patterns cover at least 99% of the test FS size in the guest's memory 4.812 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.493
Then I find very few patterns in the guest's memory after 3 seconds 7.947 
Pattern coverage: 0.000% (0 MiB out of 1462 MiB reference memory)
After features/support/hooks.rb:339 1.204
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:13.901
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 6.533
And I prepare Tails for memory erasure tests 0.292
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 32.049
Then I find very few patterns in the guest's memory 4.808 
Pattern coverage: 0.000% (0 MiB out of 1462 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.131
Then patterns cover at least 99% of the test FS size in the guest's memory 4.825 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.470
Then I find very few patterns in the guest's memory after 3 seconds 7.664 
Pattern coverage: 0.000% (0 MiB out of 1462 MiB reference memory)
# read cache
When I mount the USB drive again 4.610
And I read the content of the test FS 0.446
Then patterns cover at least 99% of the test FS size in the guest's memory 4.130 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.432
Then I find very few patterns in the guest's memory after 3 seconds 6.505 
Pattern coverage: 0.000% (0 MiB out of 1462 MiB reference memory)
After features/support/hooks.rb:339 0.823
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
44.100
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 0.360
When I fill a 128 MiB file with a known pattern on the root filesystem 11.489
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.467
Then patterns cover at least 128 MiB in the guest's memory 2.920 
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 21.274 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
After features/support/hooks.rb:339 3.553
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:21.932
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:52.036
And I prepare Tails for memory erasure tests 0.265
When I fill a 128 MiB file with a known pattern on the persistent filesystem 8.563
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.062 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
After features/support/hooks.rb:339 3.846
After features/support/hooks.rb:108 0.028