Project Number Date
test_Tails_ISO_stable 6525 23 Jul 2026, 07:30

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 7:45.046 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
17.651
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.430
And I prepare Tails for memory erasure tests 0.349
When I start a process allocating 128 MiB of memory with a known pattern 2.208
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.896 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.169
Then I find very few patterns in the guest's memory after 5 seconds 6.598 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
After features/support/hooks.rb:339 0.553
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
16.837
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.319
And I prepare Tails for memory erasure tests 0.303
And I find very few patterns in the guest's memory 1.715 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.559
Then patterns cover at least 99% of the test FS size in the guest's memory 1.954 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.363
Then I find very few patterns in the guest's memory after 3 seconds 4.621 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
After features/support/hooks.rb:339 0.952
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
30.680
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.351
And I prepare Tails for memory erasure tests 0.322
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.129
Then I find very few patterns in the guest's memory 1.734 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.267
Then patterns cover at least 75% of the test FS size in the guest's memory 2.011 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.734
Then I find very few patterns in the guest's memory after 3 seconds 4.633 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
# read cache
When I mount the USB drive again 0.133
And I read the content of the test FS 0.345
Then patterns cover at least 99% of the test FS size in the guest's memory 1.826 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.357
Then I find very few patterns in the guest's memory after 3 seconds 4.831 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
After features/support/hooks.rb:339 1.079
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:0.631
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.593
And I prepare Tails for memory erasure tests 0.285
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 32.188
Then I find very few patterns in the guest's memory 1.720 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.159
Then patterns cover at least 99% of the test FS size in the guest's memory 1.848 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.486
Then I find very few patterns in the guest's memory after 3 seconds 4.627 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
# read cache
When I mount the USB drive again 4.693
And I read the content of the test FS 0.251
Then patterns cover at least 99% of the test FS size in the guest's memory 1.790 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.370
Then I find very few patterns in the guest's memory after 3 seconds 4.615 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
After features/support/hooks.rb:339 0.679
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:1.266
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.440
And I prepare Tails for memory erasure tests 0.307
When I fill a 128 MiB file with a known pattern on the root filesystem 31.014
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.600
Then patterns cover at least 128 MiB in the guest's memory 1.401 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.497 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:339 3.840
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:37.978
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:50.362
And I prepare Tails for memory erasure tests 0.288
When I fill a 128 MiB file with a known pattern on the persistent filesystem 26.351
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.970 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
After features/support/hooks.rb:339 3.757
After features/support/hooks.rb:108 0.009