Project Number Date
test_Tails_ISO_stable 5724 18 Jun 2025, 21:01

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 12:58.346 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
27.271
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 8.790
And I prepare Tails for memory erasure tests 0.758
When I start a process allocating 128 MiB of memory with a known pattern 1.444
Then patterns cover at least 128 MiB in the guest's memory 6.907 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I kill the allocating process 0.700
Then I find very few patterns in the guest's memory after 5 seconds 8.670 
Pattern coverage: 0.000% (0 MiB out of 891 MiB reference memory)
After features/support/hooks.rb:330 1.092
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
30.481
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 11.108
And I prepare Tails for memory erasure tests 0.655
And I find very few patterns in the guest's memory 3.876 
Pattern coverage: 0.000% (0 MiB out of 886 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.800
Then patterns cover at least 99% of the test FS size in the guest's memory 3.632 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.400
Then I find very few patterns in the guest's memory after 3 seconds 9.007 
Pattern coverage: 0.000% (0 MiB out of 886 MiB reference memory)
After features/support/hooks.rb:330 0.781
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
54.151
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 9.798
And I prepare Tails for memory erasure tests 0.798
When I plug and mount a 128 MiB USB drive with a vfat filesystem 13.054
Then I find very few patterns in the guest's memory 3.775 
Pattern coverage: 0.000% (0 MiB out of 902 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.211
Then patterns cover at least 75% of the test FS size in the guest's memory 4.422 
Pattern coverage: 85.679% (109 MiB out of 127 MiB reference memory)
When I umount the USB drive 2.005
Then I find very few patterns in the guest's memory after 3 seconds 6.889 
Pattern coverage: 0.000% (0 MiB out of 902 MiB reference memory)
# read cache
When I mount the USB drive again 0.313
And I read the content of the test FS 0.826
Then patterns cover at least 99% of the test FS size in the guest's memory 3.312 
Pattern coverage: 100.596% (128 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.388
Then I find very few patterns in the guest's memory after 3 seconds 6.355 
Pattern coverage: 0.000% (0 MiB out of 902 MiB reference memory)
After features/support/hooks.rb:330 2.345
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:43.581
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 10.081
And I prepare Tails for memory erasure tests 0.653
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 54.704
Then I find very few patterns in the guest's memory 3.427 
Pattern coverage: 0.000% (0 MiB out of 895 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.693
Then patterns cover at least 99% of the test FS size in the guest's memory 3.625 
Pattern coverage: 106.113% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.877
Then I find very few patterns in the guest's memory after 3 seconds 8.985 
Pattern coverage: 0.000% (0 MiB out of 895 MiB reference memory)
# read cache
When I mount the USB drive again 5.346
And I read the content of the test FS 0.527
Then patterns cover at least 99% of the test FS size in the guest's memory 4.075 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.769
Then I find very few patterns in the guest's memory after 3 seconds 8.813 
Pattern coverage: 0.000% (0 MiB out of 895 MiB reference memory)
After features/support/hooks.rb:330 1.170
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
59.677
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 9.647
And I prepare Tails for memory erasure tests 0.589
When I fill a 128 MiB file with a known pattern on the root filesystem 17.208
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 5.019
Then patterns cover at least 128 MiB in the guest's memory 6.382 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.019
Then I find very few patterns in the guest's memory after 20 seconds 20.811 
Pattern coverage: 0.000% (0 MiB out of 901 MiB reference memory)
After features/support/hooks.rb:330 3.618
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
8:23.181
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 7:37.509
And I prepare Tails for memory erasure tests 0.597
When I fill a 128 MiB file with a known pattern on the persistent filesystem 23.844
When I trigger shutdown 0.016
Then I find very few patterns in the guest's memory after 20 seconds 21.213 
Pattern coverage: 0.000% (0 MiB out of 900 MiB reference memory)
After features/support/hooks.rb:330 3.513
After features/support/hooks.rb:100 0.013