Project Number Date
test_Tails_ISO_stable 5627 06 May 2025, 13:33

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 12:24.283 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
27.209
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 8.816
And I prepare Tails for memory erasure tests 0.537
When I start a process allocating 128 MiB of memory with a known pattern 2.358
Then patterns cover at least 128 MiB in the guest's memory 3.949 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I kill the allocating process 2.650
Then I find very few patterns in the guest's memory after 5 seconds 8.896 
Pattern coverage: 0.000% (0 MiB out of 890 MiB reference memory)
After features/support/hooks.rb:330 0.762
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
27.166
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 8.639
And I prepare Tails for memory erasure tests 0.563
And I find very few patterns in the guest's memory 3.719 
Pattern coverage: 0.000% (0 MiB out of 888 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.255
Then patterns cover at least 99% of the test FS size in the guest's memory 4.329 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.586
Then I find very few patterns in the guest's memory after 3 seconds 7.071 
Pattern coverage: 0.000% (0 MiB out of 888 MiB reference memory)
After features/support/hooks.rb:330 0.753
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
54.955
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 8.713
And I prepare Tails for memory erasure tests 0.500
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.495
Then I find very few patterns in the guest's memory 3.666 
Pattern coverage: 0.000% (0 MiB out of 889 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 4.859
Then patterns cover at least 75% of the test FS size in the guest's memory 4.085 
Pattern coverage: 94.425% (120 MiB out of 127 MiB reference memory)
When I umount the USB drive 2.448
Then I find very few patterns in the guest's memory after 3 seconds 7.521 
Pattern coverage: 0.000% (0 MiB out of 889 MiB reference memory)
# read cache
When I mount the USB drive again 0.266
And I read the content of the test FS 0.729
Then patterns cover at least 99% of the test FS size in the guest's memory 4.225 
Pattern coverage: 100.596% (128 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.643
Then I find very few patterns in the guest's memory after 3 seconds 6.800 
Pattern coverage: 0.000% (0 MiB out of 889 MiB reference memory)
After features/support/hooks.rb:330 1.533
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:44.602
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 9.321
And I prepare Tails for memory erasure tests 0.496
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 44.201
Then I find very few patterns in the guest's memory 3.418 
Pattern coverage: 0.000% (0 MiB out of 887 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.042
Then patterns cover at least 99% of the test FS size in the guest's memory 4.631 
Pattern coverage: 106.113% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 2.103
Then I find very few patterns in the guest's memory after 3 seconds 10.693 
Pattern coverage: 0.000% (0 MiB out of 887 MiB reference memory)
# read cache
When I mount the USB drive again 4.604
And I read the content of the test FS 0.458
Then patterns cover at least 99% of the test FS size in the guest's memory 9.109 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 1.932
Then I find very few patterns in the guest's memory after 3 seconds 11.588 
Pattern coverage: 0.000% (0 MiB out of 887 MiB reference memory)
After features/support/hooks.rb:330 2.196
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
54.753
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 13.349
And I prepare Tails for memory erasure tests 0.413
When I fill a 128 MiB file with a known pattern on the root filesystem 15.155
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.746
Then patterns cover at least 128 MiB in the guest's memory 3.136 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.017
Then I find very few patterns in the guest's memory after 20 seconds 20.935 
Pattern coverage: 0.000% (0 MiB out of 888 MiB reference memory)
After features/support/hooks.rb:330 3.520
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
7:55.596
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 7:10.525
And I prepare Tails for memory erasure tests 0.440
When I fill a 128 MiB file with a known pattern on the persistent filesystem 23.294
When I trigger shutdown 0.014
Then I find very few patterns in the guest's memory after 20 seconds 21.321 
Pattern coverage: 0.000% (0 MiB out of 892 MiB reference memory)
After features/support/hooks.rb:330 3.497
After features/support/hooks.rb:100 0.014