Project Number Date
test_Tails_ISO_devel 3847 01 Jun 2025, 13:18

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 12:11.381 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
27.556
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 9.365
And I prepare Tails for memory erasure tests 0.460
When I start a process allocating 128 MiB of memory with a known pattern 2.452
Then patterns cover at least 128 MiB in the guest's memory 4.239 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I kill the allocating process 0.453
Then I find very few patterns in the guest's memory after 5 seconds 10.585 
Pattern coverage: 0.000% (0 MiB out of 905 MiB reference memory)
After features/support/hooks.rb:330 0.821
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
27.500
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 9.486
And I prepare Tails for memory erasure tests 0.489
And I find very few patterns in the guest's memory 3.476 
Pattern coverage: 0.000% (0 MiB out of 892 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.140
Then patterns cover at least 99% of the test FS size in the guest's memory 4.456 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.520
Then I find very few patterns in the guest's memory after 3 seconds 6.929 
Pattern coverage: 0.000% (0 MiB out of 892 MiB reference memory)
After features/support/hooks.rb:330 0.758
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
53.772
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 8.643
And I prepare Tails for memory erasure tests 0.507
When I plug and mount a 128 MiB USB drive with a vfat filesystem 11.420
Then I find very few patterns in the guest's memory 3.726 
Pattern coverage: 0.000% (0 MiB out of 892 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.609
Then patterns cover at least 75% of the test FS size in the guest's memory 4.113 
Pattern coverage: 91.134% (116 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.072
Then I find very few patterns in the guest's memory after 3 seconds 6.787 
Pattern coverage: 0.000% (0 MiB out of 892 MiB reference memory)
# read cache
When I mount the USB drive again 0.299
And I read the content of the test FS 0.717
Then patterns cover at least 99% of the test FS size in the guest's memory 4.192 
Pattern coverage: 100.596% (128 MiB out of 127 MiB reference memory)
When I umount the USB drive 2.849
Then I find very few patterns in the guest's memory after 3 seconds 6.829 
Pattern coverage: 0.000% (0 MiB out of 892 MiB reference memory)
After features/support/hooks.rb:330 0.922
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:18.084
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 8.505
And I prepare Tails for memory erasure tests 0.440
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 35.714
Then I find very few patterns in the guest's memory 3.153 
Pattern coverage: 0.000% (0 MiB out of 891 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.641
Then patterns cover at least 99% of the test FS size in the guest's memory 3.823 
Pattern coverage: 106.113% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.740
Then I find very few patterns in the guest's memory after 3 seconds 6.199 
Pattern coverage: 0.000% (0 MiB out of 891 MiB reference memory)
# read cache
When I mount the USB drive again 6.664
And I read the content of the test FS 0.475
Then patterns cover at least 99% of the test FS size in the guest's memory 3.751 
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 6.290 
Pattern coverage: 0.000% (0 MiB out of 891 MiB reference memory)
After features/support/hooks.rb:330 1.073
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
52.120
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 8.238
And I prepare Tails for memory erasure tests 0.431
When I fill a 128 MiB file with a known pattern on the root filesystem 16.587
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.228
Then patterns cover at least 128 MiB in the guest's memory 3.319 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 21.302 
Pattern coverage: 0.000% (0 MiB out of 892 MiB reference memory)
After features/support/hooks.rb:330 3.634
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
8:12.346
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.005
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 7:29.324
And I prepare Tails for memory erasure tests 0.407
When I fill a 128 MiB file with a known pattern on the persistent filesystem 21.205
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 21.396 
Pattern coverage: 0.000% (0 MiB out of 917 MiB reference memory)
After features/support/hooks.rb:330 3.557
After features/support/hooks.rb:100 0.045