Project Number Date
test_Tails_ISO_stable 5749 29 Jun 2025, 12:46

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 11:9.791 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
26.230
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 11.387
And I prepare Tails for memory erasure tests 0.655
When I start a process allocating 128 MiB of memory with a known pattern 1.312
Then patterns cover at least 128 MiB in the guest's memory 4.022 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I kill the allocating process 0.763
Then I find very few patterns in the guest's memory after 5 seconds 8.089 
Pattern coverage: 0.000% (0 MiB out of 881 MiB reference memory)
After features/support/hooks.rb:330 0.863
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
24.510
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 8.825
And I prepare Tails for memory erasure tests 0.430
And I find very few patterns in the guest's memory 3.136 
Pattern coverage: 0.000% (0 MiB out of 872 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.625
Then patterns cover at least 99% of the test FS size in the guest's memory 3.581 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.514
Then I find very few patterns in the guest's memory after 3 seconds 6.396 
Pattern coverage: 0.000% (0 MiB out of 872 MiB reference memory)
After features/support/hooks.rb:330 0.820
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
48.271
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 8.867
And I prepare Tails for memory erasure tests 0.415
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.451
Then I find very few patterns in the guest's memory 3.375 
Pattern coverage: 0.000% (0 MiB out of 868 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.657
Then patterns cover at least 75% of the test FS size in the guest's memory 3.658 
Pattern coverage: 86.071% (109 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.413
Then I find very few patterns in the guest's memory after 3 seconds 6.442 
Pattern coverage: 0.000% (0 MiB out of 868 MiB reference memory)
# read cache
When I mount the USB drive again 0.223
And I read the content of the test FS 0.661
Then patterns cover at least 99% of the test FS size in the guest's memory 3.797 
Pattern coverage: 100.596% (128 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.379
Then I find very few patterns in the guest's memory after 3 seconds 5.927 
Pattern coverage: 0.000% (0 MiB out of 868 MiB reference memory)
After features/support/hooks.rb:330 1.139
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:18.653
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 8.205
And I prepare Tails for memory erasure tests 0.450
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 41.095
Then I find very few patterns in the guest's memory 2.810 
Pattern coverage: 0.000% (0 MiB out of 890 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.380
Then patterns cover at least 99% of the test FS size in the guest's memory 3.167 
Pattern coverage: 106.113% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 1.210
Then I find very few patterns in the guest's memory after 3 seconds 5.692 
Pattern coverage: 0.000% (0 MiB out of 890 MiB reference memory)
# read cache
When I mount the USB drive again 3.834
And I read the content of the test FS 0.431
Then patterns cover at least 99% of the test FS size in the guest's memory 3.076 
Pattern coverage: 106.116% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.747
Then I find very few patterns in the guest's memory after 3 seconds 5.547 
Pattern coverage: 0.000% (0 MiB out of 890 MiB reference memory)
After features/support/hooks.rb:330 1.396
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
49.907
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 8.710
And I prepare Tails for memory erasure tests 0.446
When I fill a 128 MiB file with a known pattern on the root filesystem 14.954
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.152
Then patterns cover at least 128 MiB in the guest's memory 2.812 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.018
Then I find very few patterns in the guest's memory after 20 seconds 20.811 
Pattern coverage: 0.000% (0 MiB out of 882 MiB reference memory)
After features/support/hooks.rb:330 3.524
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
7:22.218
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:37.216
And I prepare Tails for memory erasure tests 0.385
When I fill a 128 MiB file with a known pattern on the persistent filesystem 23.285
When I trigger shutdown 0.011
Then I find very few patterns in the guest's memory after 20 seconds 21.319 
Pattern coverage: 0.000% (0 MiB out of 890 MiB reference memory)
After features/support/hooks.rb:330 3.491
After features/support/hooks.rb:100 0.011