Project Number Date
test_Tails_ISO_stable 5563 10 Apr 2025, 10:19

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 12:15.603 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
25.791
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 8.636
And I prepare Tails for memory erasure tests 0.602
When I start a process allocating 128 MiB of memory with a known pattern 2.312
Then patterns cover at least 128 MiB in the guest's memory 4.567 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I kill the allocating process 1.055
Then I find very few patterns in the guest's memory after 5 seconds 8.616 
Pattern coverage: 0.000% (0 MiB out of 891 MiB reference memory)
After features/support/hooks.rb:330 0.788
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
26.825
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.005
Given I have started Tails from DVD without network and logged in 8.719
And I prepare Tails for memory erasure tests 0.541
And I find very few patterns in the guest's memory 3.981 
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 1.944
Then patterns cover at least 99% of the test FS size in the guest's memory 4.205 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.575
Then I find very few patterns in the guest's memory after 3 seconds 6.856 
Pattern coverage: 0.000% (0 MiB out of 894 MiB reference memory)
After features/support/hooks.rb:330 0.752
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
51.364
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 8.586
And I prepare Tails for memory erasure tests 0.582
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 3.259 
Pattern coverage: 0.000% (0 MiB out of 880 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.829
Then patterns cover at least 75% of the test FS size in the guest's memory 4.083 
Pattern coverage: 95.237% (121 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.649
Then I find very few patterns in the guest's memory after 3 seconds 6.832 
Pattern coverage: 0.000% (0 MiB out of 880 MiB reference memory)
# read cache
When I mount the USB drive again 0.241
And I read the content of the test FS 1.084
Then patterns cover at least 99% of the test FS size in the guest's memory 4.585 
Pattern coverage: 100.596% (128 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.708
Then I find very few patterns in the guest's memory after 3 seconds 6.718 
Pattern coverage: 0.000% (0 MiB out of 880 MiB reference memory)
After features/support/hooks.rb:330 1.289
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:18.898
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 9.693
And I prepare Tails for memory erasure tests 0.567
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 37.405
Then I find very few patterns in the guest's memory 3.149 
Pattern coverage: 0.000% (0 MiB out of 879 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.907
Then patterns cover at least 99% of the test FS size in the guest's memory 3.666 
Pattern coverage: 106.113% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 1.003
Then I find very few patterns in the guest's memory after 3 seconds 6.144 
Pattern coverage: 0.000% (0 MiB out of 879 MiB reference memory)
# read cache
When I mount the USB drive again 4.619
And I read the content of the test FS 0.567
Then patterns cover at least 99% of the test FS size in the guest's memory 3.330 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.684
Then I find very few patterns in the guest's memory after 3 seconds 6.157 
Pattern coverage: 0.000% (0 MiB out of 879 MiB reference memory)
After features/support/hooks.rb:330 1.145
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
53.720
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 9.042
And I prepare Tails for memory erasure tests 0.443
When I fill a 128 MiB file with a known pattern on the root filesystem 17.311
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.450
Then patterns cover at least 128 MiB in the guest's memory 3.572 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.013
Then I find very few patterns in the guest's memory after 20 seconds 20.885 
Pattern coverage: 0.000% (0 MiB out of 891 MiB reference memory)
After features/support/hooks.rb:330 3.559
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
8:19.004
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 7:32.975
And I prepare Tails for memory erasure tests 0.479
When I fill a 128 MiB file with a known pattern on the persistent filesystem 24.091
When I trigger shutdown 0.014
Then I find very few patterns in the guest's memory after 20 seconds 21.444 
Pattern coverage: 0.000% (0 MiB out of 898 MiB reference memory)
After features/support/hooks.rb:330 3.575
After features/support/hooks.rb:100 0.014