Project Number Date
test_Tails_ISO_stable 5556 05 Apr 2025, 12:45

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 10:49.854 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
24.106
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 7.968
And I prepare Tails for memory erasure tests 0.435
When I start a process allocating 128 MiB of memory with a known pattern 1.259
Then patterns cover at least 128 MiB in the guest's memory 5.147 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I kill the allocating process 0.966
Then I find very few patterns in the guest's memory after 5 seconds 8.329 
Pattern coverage: 0.000% (0 MiB out of 887 MiB reference memory)
After features/support/hooks.rb:330 0.708
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
32.461
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 8.180
And I prepare Tails for memory erasure tests 0.429
And I find very few patterns in the guest's memory 3.631 
Pattern coverage: 0.000% (0 MiB out of 899 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.857
Then patterns cover at least 99% of the test FS size in the guest's memory 7.407 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.492
Then I find very few patterns in the guest's memory after 3 seconds 10.462 
Pattern coverage: 0.000% (0 MiB out of 899 MiB reference memory)
After features/support/hooks.rb:330 0.832
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
45.667
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 7.909
And I prepare Tails for memory erasure tests 0.402
When I plug and mount a 128 MiB USB drive with a vfat filesystem 8.980
Then I find very few patterns in the guest's memory 3.459 
Pattern coverage: 0.000% (0 MiB out of 880 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.402
Then patterns cover at least 75% of the test FS size in the guest's memory 3.636 
Pattern coverage: 87.776% (112 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.866
Then I find very few patterns in the guest's memory after 3 seconds 6.541 
Pattern coverage: 0.000% (0 MiB out of 880 MiB reference memory)
# read cache
When I mount the USB drive again 0.186
And I read the content of the test FS 0.616
Then patterns cover at least 99% of the test FS size in the guest's memory 4.074 
Pattern coverage: 100.596% (128 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.280
Then I find very few patterns in the guest's memory after 3 seconds 6.309 
Pattern coverage: 0.000% (0 MiB out of 880 MiB reference memory)
After features/support/hooks.rb:330 0.676
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:11.974
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 7.873
And I prepare Tails for memory erasure tests 0.392
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 36.216
Then I find very few patterns in the guest's memory 2.950 
Pattern coverage: 0.000% (0 MiB out of 890 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.766
Then patterns cover at least 99% of the test FS size in the guest's memory 3.153 
Pattern coverage: 106.113% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.556
Then I find very few patterns in the guest's memory after 3 seconds 5.733 
Pattern coverage: 0.000% (0 MiB out of 890 MiB reference memory)
# read cache
When I mount the USB drive again 3.725
And I read the content of the test FS 0.580
Then patterns cover at least 99% of the test FS size in the guest's memory 2.978 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.423
Then I find very few patterns in the guest's memory after 3 seconds 5.623 
Pattern coverage: 0.000% (0 MiB out of 890 MiB reference memory)
After features/support/hooks.rb:330 1.363
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
50.989
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 7.867
And I prepare Tails for memory erasure tests 0.386
When I fill a 128 MiB file with a known pattern on the root filesystem 17.821
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.472
Then patterns cover at least 128 MiB in the guest's memory 2.663 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.014
Then I find very few patterns in the guest's memory after 20 seconds 20.762 
Pattern coverage: 0.000% (0 MiB out of 891 MiB reference memory)
After features/support/hooks.rb:330 3.500
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
7:4.656
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:19.583
And I prepare Tails for memory erasure tests 0.467
When I fill a 128 MiB file with a known pattern on the persistent filesystem 23.479
When I trigger shutdown 0.011
Then I find very few patterns in the guest's memory after 20 seconds 21.114 
Pattern coverage: 0.000% (0 MiB out of 894 MiB reference memory)
After features/support/hooks.rb:330 3.541
After features/support/hooks.rb:100 0.012