Project Number Date
test_Tails_ISO_stable 5667 21 May 2025, 12:40

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 11:11.857 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
24.971
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 8.171
And I prepare Tails for memory erasure tests 0.428
When I start a process allocating 128 MiB of memory with a known pattern 2.518
Then patterns cover at least 128 MiB in the guest's memory 4.516 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I kill the allocating process 0.741
Then I find very few patterns in the guest's memory after 5 seconds 8.596 
Pattern coverage: 0.000% (0 MiB out of 888 MiB reference memory)
After features/support/hooks.rb:330 0.808
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
28.007
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 8.316
And I prepare Tails for memory erasure tests 0.494
And I find very few patterns in the guest's memory 4.876 
Pattern coverage: 0.000% (0 MiB out of 894 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.765
Then patterns cover at least 99% of the test FS size in the guest's memory 5.422 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.600
Then I find very few patterns in the guest's memory after 3 seconds 6.532 
Pattern coverage: 0.000% (0 MiB out of 894 MiB reference memory)
After features/support/hooks.rb:330 0.786
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
50.579
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 8.312
And I prepare Tails for memory erasure tests 0.456
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.599
Then I find very few patterns in the guest's memory 4.053 
Pattern coverage: 0.000% (0 MiB out of 868 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 3.570
Then patterns cover at least 75% of the test FS size in the guest's memory 4.153 
Pattern coverage: 88.352% (112 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.889
Then I find very few patterns in the guest's memory after 3 seconds 6.656 
Pattern coverage: 0.000% (0 MiB out of 868 MiB reference memory)
# read cache
When I mount the USB drive again 0.260
And I read the content of the test FS 0.846
Then patterns cover at least 99% of the test FS size in the guest's memory 4.095 
Pattern coverage: 100.596% (128 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.350
Then I find very few patterns in the guest's memory after 3 seconds 6.335 
Pattern coverage: 0.000% (0 MiB out of 868 MiB reference memory)
After features/support/hooks.rb:330 0.799
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:15.760
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 8.456
And I prepare Tails for memory erasure tests 0.452
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 36.842
Then I find very few patterns in the guest's memory 2.795 
Pattern coverage: 0.000% (0 MiB out of 867 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.538
Then patterns cover at least 99% of the test FS size in the guest's memory 3.108 
Pattern coverage: 106.113% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.798
Then I find very few patterns in the guest's memory after 3 seconds 5.621 
Pattern coverage: 0.000% (0 MiB out of 867 MiB reference memory)
# read cache
When I mount the USB drive again 6.269
And I read the content of the test FS 0.513
Then patterns cover at least 99% of the test FS size in the guest's memory 3.033 
Pattern coverage: 106.116% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.669
Then I find very few patterns in the guest's memory after 3 seconds 5.658 
Pattern coverage: 0.000% (0 MiB out of 867 MiB reference memory)
After features/support/hooks.rb:330 1.765
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
53.724
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 8.485
And I prepare Tails for memory erasure tests 0.436
When I fill a 128 MiB file with a known pattern on the root filesystem 18.533
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.541
Then patterns cover at least 128 MiB in the guest's memory 2.814 
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 20.897 
Pattern coverage: 0.000% (0 MiB out of 893 MiB reference memory)
After features/support/hooks.rb:330 3.528
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
7:18.813
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 6:34.485
And I prepare Tails for memory erasure tests 0.483
When I fill a 128 MiB file with a known pattern on the persistent filesystem 22.675
When I trigger shutdown 0.013
Then I find very few patterns in the guest's memory after 20 seconds 21.156 
Pattern coverage: 0.000% (0 MiB out of 889 MiB reference memory)
After features/support/hooks.rb:330 3.536
After features/support/hooks.rb:100 0.012