Project Number Date
test_Tails_ISO_stable 6640 05 Sep 2026, 11:34

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 7:51.703 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
19.851
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 6.307
And I prepare Tails for memory erasure tests 0.336
When I start a process allocating 128 MiB of memory with a known pattern 2.287
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 3.007 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.225
Then I find very few patterns in the guest's memory after 5 seconds 7.686 
Pattern coverage: 0.000% (0 MiB out of 1463 MiB reference memory)
After features/support/hooks.rb:339 0.861
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
32.251
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 18.527
And I prepare Tails for memory erasure tests 0.327
And I find very few patterns in the guest's memory 2.824 
Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.481
Then patterns cover at least 99% of the test FS size in the guest's memory 2.883 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.371
Then I find very few patterns in the guest's memory after 3 seconds 5.835 
Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)
After features/support/hooks.rb:339 0.974
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
37.912
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.004
Given I have started Tails from DVD without network and logged in 6.958
And I prepare Tails for memory erasure tests 0.294
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.333
Then I find very few patterns in the guest's memory 2.691 
Pattern coverage: 0.000% (0 MiB out of 1467 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.621
Then patterns cover at least 75% of the test FS size in the guest's memory 3.556 
Pattern coverage: 100.000% (127 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 5.692 
Pattern coverage: 0.000% (0 MiB out of 1467 MiB reference memory)
# read cache
When I mount the USB drive again 0.196
And I read the content of the test FS 0.651
Then patterns cover at least 99% of the test FS size in the guest's memory 2.969 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.352
Then I find very few patterns in the guest's memory after 3 seconds 5.950 
Pattern coverage: 0.000% (0 MiB out of 1467 MiB reference memory)
After features/support/hooks.rb:339 0.817
After features/support/hooks.rb:108 0.001
Tags: @product @slow @not_release_blocker
1:7.564
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.008
Given I have started Tails from DVD without network and logged in 6.668
And I prepare Tails for memory erasure tests 0.363
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 33.924
Then I find very few patterns in the guest's memory 3.074 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.084
Then patterns cover at least 99% of the test FS size in the guest's memory 2.861 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.520
Then I find very few patterns in the guest's memory after 3 seconds 5.567 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
# read cache
When I mount the USB drive again 4.127
And I read the content of the test FS 0.425
Then patterns cover at least 99% of the test FS size in the guest's memory 2.788 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.562
Then I find very few patterns in the guest's memory after 3 seconds 5.595 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
After features/support/hooks.rb:339 0.740
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
44.609
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 6.434
And I prepare Tails for memory erasure tests 0.301
When I fill a 128 MiB file with a known pattern on the root filesystem 13.126
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.559
Then patterns cover at least 128 MiB in the guest's memory 2.468 
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 20.712 
Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)
After features/support/hooks.rb:339 3.398
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:29.514
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 3:57.415
And I prepare Tails for memory erasure tests 0.254
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.654
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.183 
Pattern coverage: 0.000% (0 MiB out of 1442 MiB reference memory)
After features/support/hooks.rb:339 3.679
After features/support/hooks.rb:108 0.046