Project Number Date
test_Tails_ISO_stable 6326 23 Apr 2026, 13:34

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 7:40.472 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
18.536
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.649
And I prepare Tails for memory erasure tests 0.437
When I start a process allocating 128 MiB of memory with a known pattern 1.154
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.470 
Pattern coverage: 100.395% (127 MiB out of 127 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 7.102 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
After features/support/hooks.rb:331 0.810
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
18.356
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 6.695
And I prepare Tails for memory erasure tests 0.441
And I find very few patterns in the guest's memory 1.920 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.733
Then patterns cover at least 99% of the test FS size in the guest's memory 2.298 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.338
Then I find very few patterns in the guest's memory after 3 seconds 4.928 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
After features/support/hooks.rb:331 0.963
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
34.042
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 6.725
And I prepare Tails for memory erasure tests 0.361
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.498
Then I find very few patterns in the guest's memory 2.115 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.420
Then patterns cover at least 75% of the test FS size in the guest's memory 2.313 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.363
Then I find very few patterns in the guest's memory after 3 seconds 4.809 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
# read cache
When I mount the USB drive again 0.241
And I read the content of the test FS 0.591
Then patterns cover at least 99% of the test FS size in the guest's memory 2.099 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.462
Then I find very few patterns in the guest's memory after 3 seconds 5.039 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
After features/support/hooks.rb:331 1.029
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
59.958
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 7.048
And I prepare Tails for memory erasure tests 0.333
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.800
Then I find very few patterns in the guest's memory 1.966 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.560
Then patterns cover at least 99% of the test FS size in the guest's memory 2.223 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.656
Then I find very few patterns in the guest's memory after 3 seconds 4.777 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
# read cache
When I mount the USB drive again 3.748
And I read the content of the test FS 0.375
Then patterns cover at least 99% of the test FS size in the guest's memory 2.051 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.506
Then I find very few patterns in the guest's memory after 3 seconds 4.910 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
After features/support/hooks.rb:331 1.055
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
51.056
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 6.967
And I prepare Tails for memory erasure tests 0.370
When I fill a 128 MiB file with a known pattern on the root filesystem 13.735
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 7.733
Then patterns cover at least 128 MiB in the guest's memory 1.694 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.548 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
After features/support/hooks.rb:331 3.671
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:38.522
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.006
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:6.010
And I prepare Tails for memory erasure tests 0.403
When I fill a 128 MiB file with a known pattern on the persistent filesystem 11.093
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 21.008 
Pattern coverage: 0.000% (0 MiB out of 1498 MiB reference memory)
After features/support/hooks.rb:331 3.773
After features/support/hooks.rb:100 0.013