Project Number Date
test_Tails_ISO_stable 6605 25 Aug 2026, 11:35

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 7:26.317 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
20.126
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.001
Given I have started Tails from DVD without network and logged in 6.472
And I prepare Tails for memory erasure tests 0.354
When I start a process allocating 128 MiB of memory with a known pattern 2.211
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.886 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.215
Then I find very few patterns in the guest's memory after 5 seconds 7.984 
Pattern coverage: 0.000% (0 MiB out of 1455 MiB reference memory)
After features/support/hooks.rb:339 0.604
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
20.479
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 6.498
And I prepare Tails for memory erasure tests 0.291
And I find very few patterns in the guest's memory 2.642 
Pattern coverage: 0.000% (0 MiB out of 1453 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.680
Then patterns cover at least 99% of the test FS size in the guest's memory 3.100 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.457
Then I find very few patterns in the guest's memory after 3 seconds 5.809 
Pattern coverage: 0.000% (0 MiB out of 1453 MiB reference memory)
After features/support/hooks.rb:339 0.697
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
37.477
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.001
Given I have started Tails from DVD without network and logged in 6.327
And I prepare Tails for memory erasure tests 0.291
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.163
Then I find very few patterns in the guest's memory 3.041 
Pattern coverage: 0.000% (0 MiB out of 1455 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.794
Then patterns cover at least 75% of the test FS size in the guest's memory 3.160 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.860
Then I find very few patterns in the guest's memory after 3 seconds 5.680 
Pattern coverage: 0.000% (0 MiB out of 1455 MiB reference memory)
# read cache
When I mount the USB drive again 0.167
And I read the content of the test FS 0.567
Then patterns cover at least 99% of the test FS size in the guest's memory 3.022 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.482
Then I find very few patterns in the guest's memory after 3 seconds 5.915 
Pattern coverage: 0.000% (0 MiB out of 1455 MiB reference memory)
After features/support/hooks.rb:339 0.700
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:1.268
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 6.465
And I prepare Tails for memory erasure tests 0.272
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.040
Then I find very few patterns in the guest's memory 2.829 
Pattern coverage: 0.000% (0 MiB out of 1461 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.247
Then patterns cover at least 99% of the test FS size in the guest's memory 3.030 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.509
Then I find very few patterns in the guest's memory after 3 seconds 5.722 
Pattern coverage: 0.000% (0 MiB out of 1461 MiB reference memory)
# read cache
When I mount the USB drive again 3.833
And I read the content of the test FS 0.410
Then patterns cover at least 99% of the test FS size in the guest's memory 2.766 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.417
Then I find very few patterns in the guest's memory after 3 seconds 5.721 
Pattern coverage: 0.000% (0 MiB out of 1461 MiB reference memory)
After features/support/hooks.rb:339 1.198
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
42.414
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 6.265
And I prepare Tails for memory erasure tests 0.292
When I fill a 128 MiB file with a known pattern on the root filesystem 11.452
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.515
Then patterns cover at least 128 MiB in the guest's memory 2.144 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.008
Then I find very few patterns in the guest's memory after 20 seconds 20.735 
Pattern coverage: 0.000% (0 MiB out of 1459 MiB reference memory)
After features/support/hooks.rb:339 3.599
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:24.550
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 3:53.296
And I prepare Tails for memory erasure tests 0.371
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.829
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.047 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
After features/support/hooks.rb:339 3.685
After features/support/hooks.rb:108 0.012