Project Number Date
test_Tails_ISO_stable 5648 15 May 2025, 09:09

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 11:52.392 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
24.801
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 8.347
And I prepare Tails for memory erasure tests 0.431
When I start a process allocating 128 MiB of memory with a known pattern 1.215
Then patterns cover at least 128 MiB in the guest's memory 4.198 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I kill the allocating process 0.665
Then I find very few patterns in the guest's memory after 5 seconds 9.943 
Pattern coverage: 0.000% (0 MiB out of 895 MiB reference memory)
After features/support/hooks.rb:330 0.829
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
27.591
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 8.745
And I prepare Tails for memory erasure tests 0.421
And I find very few patterns in the guest's memory 4.322 
Pattern coverage: 0.000% (0 MiB out of 883 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.052
Then patterns cover at least 99% of the test FS size in the guest's memory 4.420 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.523
Then I find very few patterns in the guest's memory after 3 seconds 7.105 
Pattern coverage: 0.000% (0 MiB out of 883 MiB reference memory)
After features/support/hooks.rb:330 0.695
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:5.775
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 8.576
And I prepare Tails for memory erasure tests 0.430
When I plug and mount a 128 MiB USB drive with a vfat filesystem 14.761
Then I find very few patterns in the guest's memory 9.029 
Pattern coverage: 0.000% (0 MiB out of 900 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.634
Then patterns cover at least 75% of the test FS size in the guest's memory 10.556 
Pattern coverage: 91.456% (116 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.885
Then I find very few patterns in the guest's memory after 3 seconds 6.591 
Pattern coverage: 0.000% (0 MiB out of 900 MiB reference memory)
# read cache
When I mount the USB drive again 0.220
And I read the content of the test FS 0.516
Then patterns cover at least 99% of the test FS size in the guest's memory 4.362 
Pattern coverage: 100.596% (128 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.529
Then I find very few patterns in the guest's memory after 3 seconds 6.680 
Pattern coverage: 0.000% (0 MiB out of 900 MiB reference memory)
After features/support/hooks.rb:330 0.999
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:29.484
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 20.974
And I prepare Tails for memory erasure tests 0.436
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 34.987
Then I find very few patterns in the guest's memory 3.062 
Pattern coverage: 0.000% (0 MiB out of 900 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.786
Then patterns cover at least 99% of the test FS size in the guest's memory 3.445 
Pattern coverage: 106.113% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.805
Then I find very few patterns in the guest's memory after 3 seconds 6.014 
Pattern coverage: 0.000% (0 MiB out of 900 MiB reference memory)
# read cache
When I mount the USB drive again 4.690
And I read the content of the test FS 0.541
Then patterns cover at least 99% of the test FS size in the guest's memory 5.531 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.800
Then I find very few patterns in the guest's memory after 3 seconds 6.405 
Pattern coverage: 0.000% (0 MiB out of 900 MiB reference memory)
After features/support/hooks.rb:330 1.588
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:0.005
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 8.561
And I prepare Tails for memory erasure tests 0.435
When I fill a 128 MiB file with a known pattern on the root filesystem 19.148
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 7.916
Then patterns cover at least 128 MiB in the guest's memory 3.036 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.015
Then I find very few patterns in the guest's memory after 20 seconds 20.889 
Pattern coverage: 0.000% (0 MiB out of 901 MiB reference memory)
After features/support/hooks.rb:330 3.513
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
7:24.733
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:40.111
And I prepare Tails for memory erasure tests 0.435
When I fill a 128 MiB file with a known pattern on the persistent filesystem 22.897
When I trigger shutdown 0.013
Then I find very few patterns in the guest's memory after 20 seconds 21.276 
Pattern coverage: 0.000% (0 MiB out of 884 MiB reference memory)
After features/support/hooks.rb:330 3.537
After features/support/hooks.rb:100 0.011