Project Number Date
test_Tails_ISO_stable 5571 13 Apr 2025, 13:27

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 10:49.195 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
26.931
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 8.138
And I prepare Tails for memory erasure tests 0.536
When I start a process allocating 128 MiB of memory with a known pattern 4.526
Then patterns cover at least 128 MiB in the guest's memory 3.707 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I kill the allocating process 0.210
Then I find very few patterns in the guest's memory after 5 seconds 9.811 
Pattern coverage: 0.000% (0 MiB out of 880 MiB reference memory)
After features/support/hooks.rb:330 0.793
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
26.276
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 8.415
And I prepare Tails for memory erasure tests 0.425
And I find very few patterns in the guest's memory 3.540 
Pattern coverage: 0.000% (0 MiB out of 877 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.355
Then patterns cover at least 99% of the test FS size in the guest's memory 4.046 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.746
Then I find very few patterns in the guest's memory after 3 seconds 6.746 
Pattern coverage: 0.000% (0 MiB out of 877 MiB reference memory)
After features/support/hooks.rb:330 0.854
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
48.532
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 8.249
And I prepare Tails for memory erasure tests 0.390
When I plug and mount a 128 MiB USB drive with a vfat filesystem 9.313
Then I find very few patterns in the guest's memory 3.737 
Pattern coverage: 0.000% (0 MiB out of 876 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.938
Then patterns cover at least 75% of the test FS size in the guest's memory 4.175 
Pattern coverage: 87.718% (111 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.731
Then I find very few patterns in the guest's memory after 3 seconds 6.016 
Pattern coverage: 0.000% (0 MiB out of 876 MiB reference memory)
# read cache
When I mount the USB drive again 0.251
And I read the content of the test FS 0.627
Then patterns cover at least 99% of the test FS size in the guest's memory 3.847 
Pattern coverage: 100.596% (128 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.761
Then I find very few patterns in the guest's memory after 3 seconds 6.492 
Pattern coverage: 0.000% (0 MiB out of 876 MiB reference memory)
After features/support/hooks.rb:330 1.153
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:13.609
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.007
Given I have started Tails from DVD without network and logged in 8.243
And I prepare Tails for memory erasure tests 0.445
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 34.734
Then I find very few patterns in the guest's memory 3.097 
Pattern coverage: 0.000% (0 MiB out of 859 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.521
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 0.737
Then I find very few patterns in the guest's memory after 3 seconds 5.820 
Pattern coverage: 0.000% (0 MiB out of 859 MiB reference memory)
# read cache
When I mount the USB drive again 4.969
And I read the content of the test FS 0.460
Then patterns cover at least 99% of the test FS size in the guest's memory 3.453 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.528
Then I find very few patterns in the guest's memory after 3 seconds 6.056 
Pattern coverage: 0.000% (0 MiB out of 859 MiB reference memory)
After features/support/hooks.rb:330 1.463
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
50.845
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 8.077
And I prepare Tails for memory erasure tests 0.479
When I fill a 128 MiB file with a known pattern on the root filesystem 16.439
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.241
Then patterns cover at least 128 MiB in the guest's memory 2.813 
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 20.773 
Pattern coverage: 0.000% (0 MiB out of 885 MiB reference memory)
After features/support/hooks.rb:330 3.569
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
7:2.999
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.004
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:19.020
And I prepare Tails for memory erasure tests 0.471
When I fill a 128 MiB file with a known pattern on the persistent filesystem 22.275
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 21.219 
Pattern coverage: 0.000% (0 MiB out of 903 MiB reference memory)
After features/support/hooks.rb:330 3.522
After features/support/hooks.rb:100 0.011