Project Number Date
test_Tails_ISO_stable 5655 18 May 2025, 12:43

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 11:16.862 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
26.571
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 8.373
And I prepare Tails for memory erasure tests 0.449
When I start a process allocating 128 MiB of memory with a known pattern 2.326
Then patterns cover at least 128 MiB in the guest's memory 5.144 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I kill the allocating process 1.341
Then I find very few patterns in the guest's memory after 5 seconds 8.936 
Pattern coverage: 0.000% (0 MiB out of 891 MiB reference memory)
After features/support/hooks.rb:330 1.056
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
31.976
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 10.559
And I prepare Tails for memory erasure tests 0.687
And I find very few patterns in the guest's memory 5.787 
Pattern coverage: 0.000% (0 MiB out of 881 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.294
Then patterns cover at least 99% of the test FS size in the guest's memory 5.252 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.718
Then I find very few patterns in the guest's memory after 3 seconds 6.676 
Pattern coverage: 0.000% (0 MiB out of 881 MiB reference memory)
After features/support/hooks.rb:330 0.685
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
53.242
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 9.460
And I prepare Tails for memory erasure tests 0.500
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.203
Then I find very few patterns in the guest's memory 4.770 
Pattern coverage: 0.000% (0 MiB out of 896 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 3.302
Then patterns cover at least 75% of the test FS size in the guest's memory 4.790 
Pattern coverage: 90.963% (116 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.034
Then I find very few patterns in the guest's memory after 3 seconds 6.932 
Pattern coverage: 0.000% (0 MiB out of 896 MiB reference memory)
# read cache
When I mount the USB drive again 0.319
And I read the content of the test FS 0.752
Then patterns cover at least 99% of the test FS size in the guest's memory 4.079 
Pattern coverage: 100.596% (128 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.536
Then I find very few patterns in the guest's memory after 3 seconds 6.558 
Pattern coverage: 0.000% (0 MiB out of 896 MiB reference memory)
After features/support/hooks.rb:330 1.158
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:16.248
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 8.377
And I prepare Tails for memory erasure tests 0.429
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 37.414
Then I find very few patterns in the guest's memory 2.768 
Pattern coverage: 0.000% (0 MiB out of 898 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.522
Then patterns cover at least 99% of the test FS size in the guest's memory 3.141 
Pattern coverage: 106.113% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.736
Then I find very few patterns in the guest's memory after 3 seconds 6.286 
Pattern coverage: 0.000% (0 MiB out of 898 MiB reference memory)
# read cache
When I mount the USB drive again 4.505
And I read the content of the test FS 1.158
Then patterns cover at least 99% of the test FS size in the guest's memory 3.712 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.618
Then I find very few patterns in the guest's memory after 3 seconds 5.577 
Pattern coverage: 0.000% (0 MiB out of 898 MiB reference memory)
After features/support/hooks.rb:330 1.602
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
50.287
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 8.428
And I prepare Tails for memory erasure tests 0.421
When I fill a 128 MiB file with a known pattern on the root filesystem 14.655
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.712
Then patterns cover at least 128 MiB in the guest's memory 4.209 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 20.846 
Pattern coverage: 0.000% (0 MiB out of 895 MiB reference memory)
After features/support/hooks.rb:330 3.554
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
7:18.535
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 6:33.147
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 23.648
When I trigger shutdown 0.013
Then I find very few patterns in the guest's memory after 20 seconds 21.189 
Pattern coverage: 0.000% (0 MiB out of 894 MiB reference memory)
After features/support/hooks.rb:330 3.543
After features/support/hooks.rb:100 0.012