Project Number Date
test_Tails_ISO_devel 4488 10 Jul 2026, 11:13

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 7:55.776 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
18.650
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 6.591
And I prepare Tails for memory erasure tests 0.477
When I start a process allocating 128 MiB of memory with a known pattern 1.256
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.639 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.771
Then I find very few patterns in the guest's memory after 5 seconds 6.914 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
After features/support/hooks.rb:339 0.590
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
18.499
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 6.475
And I prepare Tails for memory erasure tests 0.450
And I find very few patterns in the guest's memory 1.808 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.919
Then patterns cover at least 99% of the test FS size in the guest's memory 2.366 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.390
Then I find very few patterns in the guest's memory after 3 seconds 5.088 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
After features/support/hooks.rb:339 0.785
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
33.499
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 6.751
And I prepare Tails for memory erasure tests 0.459
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.581
Then I find very few patterns in the guest's memory 2.067 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.645
Then patterns cover at least 75% of the test FS size in the guest's memory 2.211 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.781
Then I find very few patterns in the guest's memory after 3 seconds 4.729 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
# read cache
When I mount the USB drive again 0.256
And I read the content of the test FS 0.393
Then patterns cover at least 99% of the test FS size in the guest's memory 2.164 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.413
Then I find very few patterns in the guest's memory after 3 seconds 5.044 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
After features/support/hooks.rb:339 0.853
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
57.904
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 6.821
And I prepare Tails for memory erasure tests 0.331
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.040
Then I find very few patterns in the guest's memory 1.834 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.293
Then patterns cover at least 99% of the test FS size in the guest's memory 1.984 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.568
Then I find very few patterns in the guest's memory after 3 seconds 4.818 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
# read cache
When I mount the USB drive again 3.651
And I read the content of the test FS 0.315
Then patterns cover at least 99% of the test FS size in the guest's memory 1.877 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.426
Then I find very few patterns in the guest's memory after 3 seconds 4.939 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
After features/support/hooks.rb:339 0.961
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
59.715
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 6.978
And I prepare Tails for memory erasure tests 0.475
When I fill a 128 MiB file with a known pattern on the root filesystem 27.720
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.002
Then patterns cover at least 128 MiB in the guest's memory 1.685 
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 20.847 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
After features/support/hooks.rb:339 3.423
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:47.507
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:55.211
And I prepare Tails for memory erasure tests 0.433
When I fill a 128 MiB file with a known pattern on the persistent filesystem 31.001
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.854 
Pattern coverage: 0.000% (0 MiB out of 1523 MiB reference memory)
After features/support/hooks.rb:339 3.811
After features/support/hooks.rb:108 0.010