Project Number Date
test_Tails_ISO_stable 6448 16 Jun 2026, 13:19

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 8:10.966 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
18.359
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.040
Given I have started Tails from DVD without network and logged in 7.599
And I prepare Tails for memory erasure tests 0.482
When I start a process allocating 128 MiB of memory with a known pattern 1.183
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.993 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.183
Then I find very few patterns in the guest's memory after 5 seconds 6.916 
Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)
After features/support/hooks.rb:339 1.007
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
19.274
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.017
Given I have started Tails from DVD without network and logged in 7.512
And I prepare Tails for memory erasure tests 0.410
And I find very few patterns in the guest's memory 2.073 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.759
Then patterns cover at least 99% of the test FS size in the guest's memory 2.109 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.383
Then I find very few patterns in the guest's memory after 3 seconds 5.025 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
After features/support/hooks.rb:339 1.309
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
35.569
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.013
Given I have started Tails from DVD without network and logged in 7.423
And I prepare Tails for memory erasure tests 0.467
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.516
Then I find very few patterns in the guest's memory 2.185 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.654
Then patterns cover at least 75% of the test FS size in the guest's memory 2.752 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.908
Then I find very few patterns in the guest's memory after 3 seconds 5.151 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
# read cache
When I mount the USB drive again 0.175
And I read the content of the test FS 0.484
Then patterns cover at least 99% of the test FS size in the guest's memory 2.470 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.336
Then I find very few patterns in the guest's memory after 3 seconds 5.042 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:339 0.775
After features/support/hooks.rb:108 0.006
Tags: @product @slow @not_release_blocker
1:2.133
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.021
Given I have started Tails from DVD without network and logged in 7.208
And I prepare Tails for memory erasure tests 0.473
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 30.521
Then I find very few patterns in the guest's memory 1.975 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.421
Then patterns cover at least 99% of the test FS size in the guest's memory 2.870 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.817
Then I find very few patterns in the guest's memory after 3 seconds 4.939 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
# read cache
When I mount the USB drive again 4.393
And I read the content of the test FS 0.297
Then patterns cover at least 99% of the test FS size in the guest's memory 1.783 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.433
Then I find very few patterns in the guest's memory after 3 seconds 4.997 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:339 0.681
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
58.694
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.011
Given I have started Tails from DVD without network and logged in 7.907
And I prepare Tails for memory erasure tests 0.487
When I fill a 128 MiB file with a known pattern on the root filesystem 25.993
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.227
Then patterns cover at least 128 MiB in the guest's memory 1.519 
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 20.553 
Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)
After features/support/hooks.rb:339 3.411
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:56.934
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.009
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:17.324
And I prepare Tails for memory erasure tests 0.721
When I fill a 128 MiB file with a known pattern on the persistent filesystem 17.780
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.102 
Pattern coverage: 0.000% (0 MiB out of 1536 MiB reference memory)
After features/support/hooks.rb:339 3.844
After features/support/hooks.rb:108 0.035