Project Number Date
test_Tails_ISO_tca-remove-cruft 6 13 May 2025, 10:08

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 11:16.624 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
24.153
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 8.281
And I prepare Tails for memory erasure tests 0.530
When I start a process allocating 128 MiB of memory with a known pattern 2.570
Then patterns cover at least 128 MiB in the guest's memory 3.409 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I kill the allocating process 0.722
Then I find very few patterns in the guest's memory after 5 seconds 8.638 
Pattern coverage: 0.000% (0 MiB out of 889 MiB reference memory)
After features/support/hooks.rb:330 0.912
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
25.871
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 8.124
And I prepare Tails for memory erasure tests 0.445
And I find very few patterns in the guest's memory 3.521 
Pattern coverage: 0.000% (0 MiB out of 885 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.779
Then patterns cover at least 99% of the test FS size in the guest's memory 3.877 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.445
Then I find very few patterns in the guest's memory after 3 seconds 6.677 
Pattern coverage: 0.000% (0 MiB out of 885 MiB reference memory)
After features/support/hooks.rb:330 1.563
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
50.061
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 8.144
And I prepare Tails for memory erasure tests 0.491
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.023
Then I find very few patterns in the guest's memory 3.646 
Pattern coverage: 0.000% (0 MiB out of 899 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.851
Then patterns cover at least 75% of the test FS size in the guest's memory 3.882 
Pattern coverage: 90.825% (115 MiB out of 127 MiB reference memory)
When I umount the USB drive 2.064
Then I find very few patterns in the guest's memory after 3 seconds 6.616 
Pattern coverage: 0.000% (0 MiB out of 899 MiB reference memory)
# read cache
When I mount the USB drive again 0.381
And I read the content of the test FS 0.867
Then patterns cover at least 99% of the test FS size in the guest's memory 4.082 
Pattern coverage: 100.596% (128 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.430
Then I find very few patterns in the guest's memory after 3 seconds 6.580 
Pattern coverage: 0.000% (0 MiB out of 899 MiB reference memory)
After features/support/hooks.rb:330 1.446
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:11.321
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 8.123
And I prepare Tails for memory erasure tests 0.580
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 33.622
Then I find very few patterns in the guest's memory 3.128 
Pattern coverage: 0.000% (0 MiB out of 905 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.624
Then patterns cover at least 99% of the test FS size in the guest's memory 3.503 
Pattern coverage: 106.113% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.649
Then I find very few patterns in the guest's memory after 3 seconds 5.963 
Pattern coverage: 0.000% (0 MiB out of 905 MiB reference memory)
# read cache
When I mount the USB drive again 3.768
And I read the content of the test FS 0.624
Then patterns cover at least 99% of the test FS size in the guest's memory 3.264 
Pattern coverage: 106.117% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.501
Then I find very few patterns in the guest's memory after 3 seconds 5.967 
Pattern coverage: 0.000% (0 MiB out of 905 MiB reference memory)
After features/support/hooks.rb:330 1.504
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
51.080
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 8.123
And I prepare Tails for memory erasure tests 0.398
When I fill a 128 MiB file with a known pattern on the root filesystem 16.216
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.780
Then patterns cover at least 128 MiB in the guest's memory 2.742 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.021
Then I find very few patterns in the guest's memory after 20 seconds 20.796 
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
7:34.136
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 6:51.229
And I prepare Tails for memory erasure tests 0.474
When I fill a 128 MiB file with a known pattern on the persistent filesystem 21.143
When I trigger shutdown 0.017
Then I find very few patterns in the guest's memory after 20 seconds 21.270 
Pattern coverage: 0.000% (0 MiB out of 904 MiB reference memory)
After features/support/hooks.rb:330 3.530
After features/support/hooks.rb:100 0.013