Project Number Date
test_Tails_ISO_devel 4570 26 Aug 2026, 14:15

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 7:50.836 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
21.103
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 6.603
And I prepare Tails for memory erasure tests 0.313
When I start a process allocating 128 MiB of memory with a known pattern 2.222
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 3.074 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.775
Then I find very few patterns in the guest's memory after 5 seconds 8.114 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
After features/support/hooks.rb:339 0.710
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
21.640
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 6.729
And I prepare Tails for memory erasure tests 0.333
And I find very few patterns in the guest's memory 2.675 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.607
Then patterns cover at least 99% of the test FS size in the guest's memory 4.051 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.423
Then I find very few patterns in the guest's memory after 3 seconds 5.820 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
After features/support/hooks.rb:339 0.651
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
38.201
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 6.619
And I prepare Tails for memory erasure tests 0.369
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.485
Then I find very few patterns in the guest's memory 2.810 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 3.001
Then patterns cover at least 75% of the test FS size in the guest's memory 3.218 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.713
Then I find very few patterns in the guest's memory after 3 seconds 5.600 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
# read cache
When I mount the USB drive again 0.191
And I read the content of the test FS 0.575
Then patterns cover at least 99% of the test FS size in the guest's memory 3.158 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.440
Then I find very few patterns in the guest's memory after 3 seconds 6.015 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
After features/support/hooks.rb:339 1.026
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:4.504
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 6.521
And I prepare Tails for memory erasure tests 0.271
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 31.462
Then I find very few patterns in the guest's memory 2.628 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.157
Then patterns cover at least 99% of the test FS size in the guest's memory 2.681 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.501
Then I find very few patterns in the guest's memory after 3 seconds 5.580 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
# read cache
When I mount the USB drive again 4.325
And I read the content of the test FS 0.390
Then patterns cover at least 99% of the test FS size in the guest's memory 2.977 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.455
Then I find very few patterns in the guest's memory after 3 seconds 5.551 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
After features/support/hooks.rb:339 0.809
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
44.551
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 6.574
And I prepare Tails for memory erasure tests 0.560
When I fill a 128 MiB file with a known pattern on the root filesystem 12.938
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.556
Then patterns cover at least 128 MiB in the guest's memory 2.198 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.007
Then I find very few patterns in the guest's memory after 20 seconds 20.716 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
After features/support/hooks.rb:339 3.468
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:40.834
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 4:10.330
And I prepare Tails for memory erasure tests 0.282
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.085
When I trigger shutdown 0.009
Then I find very few patterns in the guest's memory after 20 seconds 21.126 
Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)
After features/support/hooks.rb:339 3.413
After features/support/hooks.rb:108 0.010