Project Number Date
test_Tails_ISO_stable 5744 27 Jun 2025, 10:57

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 14:41.506 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
30.029
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 11.465
And I prepare Tails for memory erasure tests 0.599
When I start a process allocating 128 MiB of memory with a known pattern 3.728
Then patterns cover at least 128 MiB in the guest's memory 3.971 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I kill the allocating process 2.166
Then I find very few patterns in the guest's memory after 5 seconds 8.097 
Pattern coverage: 0.000% (0 MiB out of 885 MiB reference memory)
After features/support/hooks.rb:330 1.212
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
31.134
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 8.328
And I prepare Tails for memory erasure tests 0.543
And I find very few patterns in the guest's memory 5.666 
Pattern coverage: 0.000% (0 MiB out of 887 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.782
Then patterns cover at least 99% of the test FS size in the guest's memory 4.541 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 1.210
Then I find very few patterns in the guest's memory after 3 seconds 8.060 
Pattern coverage: 0.000% (0 MiB out of 887 MiB reference memory)
After features/support/hooks.rb:330 1.424
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
54.562
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 10.306
And I prepare Tails for memory erasure tests 0.521
When I plug and mount a 128 MiB USB drive with a vfat filesystem 11.569
Then I find very few patterns in the guest's memory 3.863 
Pattern coverage: 0.000% (0 MiB out of 884 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.591
Then patterns cover at least 75% of the test FS size in the guest's memory 3.706 
Pattern coverage: 87.528% (111 MiB out of 127 MiB reference memory)
When I umount the USB drive 2.362
Then I find very few patterns in the guest's memory after 3 seconds 6.928 
Pattern coverage: 0.000% (0 MiB out of 884 MiB reference memory)
# read cache
When I mount the USB drive again 0.452
And I read the content of the test FS 0.893
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 0.626
Then I find very few patterns in the guest's memory after 3 seconds 6.569 
Pattern coverage: 0.000% (0 MiB out of 884 MiB reference memory)
After features/support/hooks.rb:330 1.106
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:36.467
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 11.183
And I prepare Tails for memory erasure tests 0.642
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 46.004
Then I find very few patterns in the guest's memory 2.737 
Pattern coverage: 0.000% (0 MiB out of 882 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 3.354
Then patterns cover at least 99% of the test FS size in the guest's memory 3.853 
Pattern coverage: 106.113% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 1.064
Then I find very few patterns in the guest's memory after 3 seconds 5.423 
Pattern coverage: 0.000% (0 MiB out of 882 MiB reference memory)
# read cache
When I mount the USB drive again 11.101
And I read the content of the test FS 0.564
Then patterns cover at least 99% of the test FS size in the guest's memory 4.507 
Pattern coverage: 106.117% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.615
Then I find very few patterns in the guest's memory after 3 seconds 5.413 
Pattern coverage: 0.000% (0 MiB out of 882 MiB reference memory)
After features/support/hooks.rb:330 2.040
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
56.171
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 12.071
And I prepare Tails for memory erasure tests 0.696
When I fill a 128 MiB file with a known pattern on the root filesystem 17.875
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.248
Then patterns cover at least 128 MiB in the guest's memory 2.556 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.018
Then I find very few patterns in the guest's memory after 20 seconds 20.704 
Pattern coverage: 0.000% (0 MiB out of 879 MiB reference memory)
After features/support/hooks.rb:330 3.584
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
10:13.140
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 9:20.909
And I prepare Tails for memory erasure tests 0.665
When I fill a 128 MiB file with a known pattern on the persistent filesystem 29.736
When I trigger shutdown 0.062
Then I find very few patterns in the guest's memory after 20 seconds 21.767 
Pattern coverage: 0.000% (0 MiB out of 914 MiB reference memory)
After features/support/hooks.rb:330 3.696
After features/support/hooks.rb:100 0.010