Project Number Date
test_Tails_ISO_devel 4136 24 Dec 2025, 11:09

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 6:57.593 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
17.213
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.428
And I prepare Tails for memory erasure tests 0.329
When I start a process allocating 128 MiB of memory with a known pattern 1.178
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.890 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.676
Then I find very few patterns in the guest's memory after 5 seconds 6.708 
Pattern coverage: 0.000% (0 MiB out of 1535 MiB reference memory)
After features/support/hooks.rb:331 0.970
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
17.081
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.470
And I prepare Tails for memory erasure tests 0.444
And I find very few patterns in the guest's memory 1.761 
Pattern coverage: 0.000% (0 MiB out of 1531 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.489
Then patterns cover at least 99% of the test FS size in the guest's memory 1.900 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.333
Then I find very few patterns in the guest's memory after 3 seconds 4.682 
Pattern coverage: 0.000% (0 MiB out of 1531 MiB reference memory)
After features/support/hooks.rb:331 0.625
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
30.685
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.446
And I prepare Tails for memory erasure tests 0.373
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.181
Then I find very few patterns in the guest's memory 1.693 
Pattern coverage: 0.000% (0 MiB out of 1536 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.046
Then patterns cover at least 75% of the test FS size in the guest's memory 2.045 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.724
Then I find very few patterns in the guest's memory after 3 seconds 4.666 
Pattern coverage: 0.000% (0 MiB out of 1536 MiB reference memory)
# read cache
When I mount the USB drive again 0.166
And I read the content of the test FS 0.435
Then patterns cover at least 99% of the test FS size in the guest's memory 1.876 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.382
Then I find very few patterns in the guest's memory after 3 seconds 4.647 
Pattern coverage: 0.000% (0 MiB out of 1536 MiB reference memory)
After features/support/hooks.rb:331 1.072
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
57.906
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 6.554
And I prepare Tails for memory erasure tests 0.363
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.944
Then I find very few patterns in the guest's memory 1.835 
Pattern coverage: 0.000% (0 MiB out of 1532 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.140
Then patterns cover at least 99% of the test FS size in the guest's memory 1.867 
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 4.608 
Pattern coverage: 0.000% (0 MiB out of 1532 MiB reference memory)
# read cache
When I mount the USB drive again 3.879
And I read the content of the test FS 0.271
Then patterns cover at least 99% of the test FS size in the guest's memory 1.756 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.418
Then I find very few patterns in the guest's memory after 3 seconds 4.697 
Pattern coverage: 0.000% (0 MiB out of 1532 MiB reference memory)
After features/support/hooks.rb:331 0.859
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
42.777
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.441
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 12.244
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.788
Then patterns cover at least 128 MiB in the guest's memory 1.436 
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 20.516 
Pattern coverage: 0.000% (0 MiB out of 1545 MiB reference memory)
After features/support/hooks.rb:331 3.802
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:11.928
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:40.736
And I prepare Tails for memory erasure tests 0.318
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.793
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 21.068 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
After features/support/hooks.rb:331 3.773
After features/support/hooks.rb:100 0.008