Project Number Date
test_Tails_ISO_stable 5542 02 Apr 2025, 12:38

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 12:6.905 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
28.417
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.006
Given I have started Tails from DVD without network and logged in 9.100
And I prepare Tails for memory erasure tests 0.484
When I start a process allocating 128 MiB of memory with a known pattern 1.356
Then patterns cover at least 128 MiB in the guest's memory 6.383 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I kill the allocating process 0.766
Then I find very few patterns in the guest's memory after 5 seconds 10.326 
Pattern coverage: 0.000% (0 MiB out of 875 MiB reference memory)
After features/support/hooks.rb:330 0.930
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
33.680
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.004
Given I have started Tails from DVD without network and logged in 10.134
And I prepare Tails for memory erasure tests 0.450
And I find very few patterns in the guest's memory 5.601 
Pattern coverage: 0.000% (0 MiB out of 879 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.845
Then patterns cover at least 99% of the test FS size in the guest's memory 5.760 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 1.134
Then I find very few patterns in the guest's memory after 3 seconds 8.753 
Pattern coverage: 0.000% (0 MiB out of 879 MiB reference memory)
After features/support/hooks.rb:330 1.086
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
51.210
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 9.621
And I prepare Tails for memory erasure tests 0.515
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.173
Then I find very few patterns in the guest's memory 3.385 
Pattern coverage: 0.000% (0 MiB out of 879 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.916
Then patterns cover at least 75% of the test FS size in the guest's memory 4.729 
Pattern coverage: 85.287% (108 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.268
Then I find very few patterns in the guest's memory after 3 seconds 6.730 
Pattern coverage: 0.000% (0 MiB out of 879 MiB reference memory)
# read cache
When I mount the USB drive again 0.283
And I read the content of the test FS 0.599
Then patterns cover at least 99% of the test FS size in the guest's memory 3.980 
Pattern coverage: 100.596% (128 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.333
Then I find very few patterns in the guest's memory after 3 seconds 6.672 
Pattern coverage: 0.000% (0 MiB out of 879 MiB reference memory)
After features/support/hooks.rb:330 1.014
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:20.289
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 8.317
And I prepare Tails for memory erasure tests 0.393
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 39.171
Then I find very few patterns in the guest's memory 3.003 
Pattern coverage: 0.000% (0 MiB out of 896 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.717
Then patterns cover at least 99% of the test FS size in the guest's memory 3.540 
Pattern coverage: 106.113% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.928
Then I find very few patterns in the guest's memory after 3 seconds 6.511 
Pattern coverage: 0.000% (0 MiB out of 896 MiB reference memory)
# read cache
When I mount the USB drive again 4.332
And I read the content of the test FS 0.482
Then patterns cover at least 99% of the test FS size in the guest's memory 4.339 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.626
Then I find very few patterns in the guest's memory after 3 seconds 6.924 
Pattern coverage: 0.000% (0 MiB out of 896 MiB reference memory)
After features/support/hooks.rb:330 1.244
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
52.045
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 8.553
And I prepare Tails for memory erasure tests 0.394
When I fill a 128 MiB file with a known pattern on the root filesystem 16.814
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.162
Then patterns cover at least 128 MiB in the guest's memory 3.042 
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 21.064 
Pattern coverage: 0.000% (0 MiB out of 892 MiB reference memory)
After features/support/hooks.rb:330 3.516
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
8:1.262
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 7:17.797
And I prepare Tails for memory erasure tests 0.509
When I fill a 128 MiB file with a known pattern on the persistent filesystem 21.319
When I trigger shutdown 0.020
Then I find very few patterns in the guest's memory after 20 seconds 21.616 
Pattern coverage: 0.000% (0 MiB out of 892 MiB reference memory)
After features/support/hooks.rb:330 3.550
After features/support/hooks.rb:100 0.010