Project Number Date
test_Tails_ISO_stable 5964 22 Nov 2025, 12:44

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 14:22.204 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
47.775
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 8.509
And I prepare Tails for memory erasure tests 0.428
When I start a process allocating 128 MiB of memory with a known pattern 2.231
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 15.415 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.438
Then I find very few patterns in the guest's memory after 5 seconds 20.752 
Pattern coverage: 0.000% (0 MiB out of 1504 MiB reference memory)
After features/support/hooks.rb:331 1.105
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
57.748
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 8.420
And I prepare Tails for memory erasure tests 0.398
And I find very few patterns in the guest's memory 14.713 
Pattern coverage: 0.000% (0 MiB out of 1515 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.579
Then patterns cover at least 99% of the test FS size in the guest's memory 15.278 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.377
Then I find very few patterns in the guest's memory after 3 seconds 16.981 
Pattern coverage: 0.000% (0 MiB out of 1515 MiB reference memory)
After features/support/hooks.rb:331 1.098
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:42.324
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 8.289
And I prepare Tails for memory erasure tests 0.364
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.821
Then I find very few patterns in the guest's memory 15.168 
Pattern coverage: 0.000% (0 MiB out of 1507 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.568
Then patterns cover at least 75% of the test FS size in the guest's memory 16.176 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.927
Then I find very few patterns in the guest's memory after 3 seconds 17.182 
Pattern coverage: 0.000% (0 MiB out of 1507 MiB reference memory)
# read cache
When I mount the USB drive again 0.210
And I read the content of the test FS 0.628
Then patterns cover at least 99% of the test FS size in the guest's memory 16.060 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.473
Then I find very few patterns in the guest's memory after 3 seconds 17.452 
Pattern coverage: 0.000% (0 MiB out of 1507 MiB reference memory)
After features/support/hooks.rb:331 1.118
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:31.514
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 8.830
And I prepare Tails for memory erasure tests 0.378
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 27.978
Then I find very few patterns in the guest's memory 12.949 
Pattern coverage: 0.000% (0 MiB out of 1505 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.868
Then patterns cover at least 99% of the test FS size in the guest's memory 15.992 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.555
Then I find very few patterns in the guest's memory after 3 seconds 16.113 
Pattern coverage: 0.000% (0 MiB out of 1505 MiB reference memory)
# read cache
When I mount the USB drive again 4.635
And I read the content of the test FS 0.462
Then patterns cover at least 99% of the test FS size in the guest's memory 28.773 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.504
Then I find very few patterns in the guest's memory after 3 seconds 32.470 
Pattern coverage: 0.000% (0 MiB out of 1505 MiB reference memory)
After features/support/hooks.rb:331 1.022
After features/support/hooks.rb:100 0.007
Tags: @product @slow @not_release_blocker
1:23.287
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.004
Given I have started Tails from DVD without network and logged in 8.629
And I prepare Tails for memory erasure tests 0.406
When I fill a 128 MiB file with a known pattern on the root filesystem 9.906
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.956
Then patterns cover at least 128 MiB in the guest's memory 28.854 
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 32.516 
Pattern coverage: 0.000% (0 MiB out of 1496 MiB reference memory)
After features/support/hooks.rb:331 3.535
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
6:59.553
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 6:26.326
And I prepare Tails for memory erasure tests 0.675
When I fill a 128 MiB file with a known pattern on the persistent filesystem 8.968
When I trigger shutdown 0.010
Then I find very few patterns in the guest's memory after 20 seconds 23.574 
Pattern coverage: 0.000% (0 MiB out of 1505 MiB reference memory)
After features/support/hooks.rb:331 3.680
After features/support/hooks.rb:100 0.017