Project Number Date
test_Tails_ISO_stable 5533 26 Mar 2025, 18:45

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 12:10.580 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
24.584
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 8.579
And I prepare Tails for memory erasure tests 0.436
When I start a process allocating 128 MiB of memory with a known pattern 2.373
Then patterns cover at least 128 MiB in the guest's memory 4.284 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I kill the allocating process 0.213
Then I find very few patterns in the guest's memory after 5 seconds 8.697 
Pattern coverage: 0.000% (0 MiB out of 884 MiB reference memory)
After features/support/hooks.rb:330 0.904
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
27.624
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 9.078
And I prepare Tails for memory erasure tests 0.504
And I find very few patterns in the guest's memory 3.881 
Pattern coverage: 0.000% (0 MiB out of 897 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.044
Then patterns cover at least 99% of the test FS size in the guest's memory 4.455 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.495
Then I find very few patterns in the guest's memory after 3 seconds 7.164 
Pattern coverage: 0.000% (0 MiB out of 897 MiB reference memory)
After features/support/hooks.rb:330 0.823
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
54.091
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 8.999
And I prepare Tails for memory erasure tests 0.411
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.420
Then I find very few patterns in the guest's memory 3.738 
Pattern coverage: 0.000% (0 MiB out of 891 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 3.290
Then patterns cover at least 75% of the test FS size in the guest's memory 4.232 
Pattern coverage: 88.826% (113 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.963
Then I find very few patterns in the guest's memory after 3 seconds 6.849 
Pattern coverage: 0.000% (0 MiB out of 891 MiB reference memory)
# read cache
When I mount the USB drive again 0.442
And I read the content of the test FS 2.613
Then patterns cover at least 99% of the test FS size in the guest's memory 4.171 
Pattern coverage: 100.596% (128 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.495
Then I find very few patterns in the guest's memory after 3 seconds 7.461 
Pattern coverage: 0.000% (0 MiB out of 891 MiB reference memory)
After features/support/hooks.rb:330 1.032
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:19.550
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 8.918
And I prepare Tails for memory erasure tests 0.416
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 36.913
Then I find very few patterns in the guest's memory 3.592 
Pattern coverage: 0.000% (0 MiB out of 894 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.704
Then patterns cover at least 99% of the test FS size in the guest's memory 3.757 
Pattern coverage: 106.113% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.917
Then I find very few patterns in the guest's memory after 3 seconds 6.155 
Pattern coverage: 0.000% (0 MiB out of 894 MiB reference memory)
# read cache
When I mount the USB drive again 3.758
And I read the content of the test FS 3.281
Then patterns cover at least 99% of the test FS size in the guest's memory 3.586 
Pattern coverage: 106.116% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.538
Then I find very few patterns in the guest's memory after 3 seconds 6.009 
Pattern coverage: 0.000% (0 MiB out of 894 MiB reference memory)
After features/support/hooks.rb:330 2.006
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
48.279
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 8.167
And I prepare Tails for memory erasure tests 0.469
When I fill a 128 MiB file with a known pattern on the root filesystem 13.622
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.116
Then patterns cover at least 128 MiB in the guest's memory 2.942 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.017
Then I find very few patterns in the guest's memory after 20 seconds 20.943 
Pattern coverage: 0.000% (0 MiB out of 902 MiB reference memory)
After features/support/hooks.rb:330 3.515
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
8:16.449
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 7:26.852
And I prepare Tails for memory erasure tests 0.536
When I fill a 128 MiB file with a known pattern on the persistent filesystem 27.757
When I trigger shutdown 0.013
Then I find very few patterns in the guest's memory after 20 seconds 21.288 
Pattern coverage: 0.000% (0 MiB out of 893 MiB reference memory)
After features/support/hooks.rb:330 3.548
After features/support/hooks.rb:100 0.015