Project Number Date
test_Tails_ISO_stable 6511 19 Jul 2026, 12:04

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 7:58.752 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
18.676
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 6.779
And I prepare Tails for memory erasure tests 0.389
When I start a process allocating 128 MiB of memory with a known pattern 2.286
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.223 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.220
Then I find very few patterns in the guest's memory after 5 seconds 6.776 
Pattern coverage: 0.000% (0 MiB out of 1469 MiB reference memory)
After features/support/hooks.rb:339 0.602
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
17.946
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 6.632
And I prepare Tails for memory erasure tests 0.414
And I find very few patterns in the guest's memory 1.902 
Pattern coverage: 0.000% (0 MiB out of 1457 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.700
Then patterns cover at least 99% of the test FS size in the guest's memory 2.154 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.387
Then I find very few patterns in the guest's memory after 3 seconds 4.754 
Pattern coverage: 0.000% (0 MiB out of 1457 MiB reference memory)
After features/support/hooks.rb:339 0.849
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
33.899
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 6.568
And I prepare Tails for memory erasure tests 0.364
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.671
Then I find very few patterns in the guest's memory 1.833 
Pattern coverage: 0.000% (0 MiB out of 1467 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.420
Then patterns cover at least 75% of the test FS size in the guest's memory 2.054 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.653
Then I find very few patterns in the guest's memory after 3 seconds 4.922 
Pattern coverage: 0.000% (0 MiB out of 1467 MiB reference memory)
# read cache
When I mount the USB drive again 0.178
And I read the content of the test FS 0.443
Then patterns cover at least 99% of the test FS size in the guest's memory 2.323 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.429
Then I find very few patterns in the guest's memory after 3 seconds 5.034 
Pattern coverage: 0.000% (0 MiB out of 1467 MiB reference memory)
After features/support/hooks.rb:339 1.009
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
58.977
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 6.672
And I prepare Tails for memory erasure tests 0.362
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.644
Then I find very few patterns in the guest's memory 1.853 
Pattern coverage: 0.000% (0 MiB out of 1458 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.391
Then patterns cover at least 99% of the test FS size in the guest's memory 1.912 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.470
Then I find very few patterns in the guest's memory after 3 seconds 4.628 
Pattern coverage: 0.000% (0 MiB out of 1458 MiB reference memory)
# read cache
When I mount the USB drive again 4.384
And I read the content of the test FS 0.311
Then patterns cover at least 99% of the test FS size in the guest's memory 2.065 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.421
Then I find very few patterns in the guest's memory after 3 seconds 4.859 
Pattern coverage: 0.000% (0 MiB out of 1458 MiB reference memory)
After features/support/hooks.rb:339 0.874
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:3.071
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 6.572
And I prepare Tails for memory erasure tests 0.344
When I fill a 128 MiB file with a known pattern on the root filesystem 32.357
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.703
Then patterns cover at least 128 MiB in the guest's memory 1.460 
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 20.627 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
After features/support/hooks.rb:339 3.504
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:46.180
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 3:59.515
And I prepare Tails for memory erasure tests 0.328
When I fill a 128 MiB file with a known pattern on the persistent filesystem 25.374
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.956 
Pattern coverage: 0.000% (0 MiB out of 1515 MiB reference memory)
After features/support/hooks.rb:339 3.759
After features/support/hooks.rb:108 0.014