Project Number Date
test_Tails_ISO_stable 5700 06 Jun 2025, 13:06

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 12:7.601 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
26.021
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.009
Given I have started Tails from DVD without network and logged in 8.692
And I prepare Tails for memory erasure tests 0.487
When I start a process allocating 128 MiB of memory with a known pattern 2.564
Then patterns cover at least 128 MiB in the guest's memory 4.902 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I kill the allocating process 0.985
Then I find very few patterns in the guest's memory after 5 seconds 8.389 
Pattern coverage: 0.000% (0 MiB out of 883 MiB reference memory)
After features/support/hooks.rb:330 0.836
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
26.243
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 8.598
And I prepare Tails for memory erasure tests 0.452
And I find very few patterns in the guest's memory 3.716 
Pattern coverage: 0.000% (0 MiB out of 876 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.536
Then patterns cover at least 99% of the test FS size in the guest's memory 4.458 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.314
Then I find very few patterns in the guest's memory after 3 seconds 7.165 
Pattern coverage: 0.000% (0 MiB out of 876 MiB reference memory)
After features/support/hooks.rb:330 1.036
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
51.002
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 8.426
And I prepare Tails for memory erasure tests 0.454
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.173
Then I find very few patterns in the guest's memory 3.948 
Pattern coverage: 0.000% (0 MiB out of 895 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.766
Then patterns cover at least 75% of the test FS size in the guest's memory 4.294 
Pattern coverage: 86.757% (110 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.678
Then I find very few patterns in the guest's memory after 3 seconds 7.050 
Pattern coverage: 0.000% (0 MiB out of 895 MiB reference memory)
# read cache
When I mount the USB drive again 0.261
And I read the content of the test FS 0.600
Then patterns cover at least 99% of the test FS size in the guest's memory 4.136 
Pattern coverage: 100.596% (128 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.410
Then I find very few patterns in the guest's memory after 3 seconds 6.801 
Pattern coverage: 0.000% (0 MiB out of 895 MiB reference memory)
After features/support/hooks.rb:330 1.244
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:22.499
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 9.612
And I prepare Tails for memory erasure tests 0.574
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 39.938
Then I find very few patterns in the guest's memory 3.405 
Pattern coverage: 0.000% (0 MiB out of 894 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.668
Then patterns cover at least 99% of the test FS size in the guest's memory 3.875 
Pattern coverage: 106.113% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.648
Then I find very few patterns in the guest's memory after 3 seconds 6.869 
Pattern coverage: 0.000% (0 MiB out of 894 MiB reference memory)
# read cache
When I mount the USB drive again 5.564
And I read the content of the test FS 0.549
Then patterns cover at least 99% of the test FS size in the guest's memory 3.397 
Pattern coverage: 106.116% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.476
Then I find very few patterns in the guest's memory after 3 seconds 5.918 
Pattern coverage: 0.000% (0 MiB out of 894 MiB reference memory)
After features/support/hooks.rb:330 1.493
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
52.136
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 8.434
And I prepare Tails for memory erasure tests 0.448
When I fill a 128 MiB file with a known pattern on the root filesystem 17.204
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.954
Then patterns cover at least 128 MiB in the guest's memory 3.139 
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 20.941 
Pattern coverage: 0.000% (0 MiB out of 879 MiB reference memory)
After features/support/hooks.rb:330 3.540
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
8:9.696
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 7:24.754
And I prepare Tails for memory erasure tests 0.416
When I fill a 128 MiB file with a known pattern on the persistent filesystem 23.079
When I trigger shutdown 0.013
Then I find very few patterns in the guest's memory after 20 seconds 21.433 
Pattern coverage: 0.000% (0 MiB out of 888 MiB reference memory)
After features/support/hooks.rb:330 3.585
After features/support/hooks.rb:100 0.019