Project Number Date
test_Tails_ISO_stable 6323 22 Apr 2026, 12:00

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 7:44.807 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
18.746
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 7.591
And I prepare Tails for memory erasure tests 0.428
When I start a process allocating 128 MiB of memory with a known pattern 1.197
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.308 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.289
Then I find very few patterns in the guest's memory after 5 seconds 6.930 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
After features/support/hooks.rb:331 1.493
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
20.073
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 7.797
And I prepare Tails for memory erasure tests 0.421
And I find very few patterns in the guest's memory 1.968 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.556
Then patterns cover at least 99% of the test FS size in the guest's memory 2.024 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 1.061
Then I find very few patterns in the guest's memory after 3 seconds 5.242 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
After features/support/hooks.rb:331 1.388
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
35.051
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 7.609
And I prepare Tails for memory erasure tests 0.410
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.426
Then I find very few patterns in the guest's memory 1.981 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.538
Then patterns cover at least 75% of the test FS size in the guest's memory 2.455 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.877
Then I find very few patterns in the guest's memory after 3 seconds 4.957 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
# read cache
When I mount the USB drive again 0.771
And I read the content of the test FS 0.560
Then patterns cover at least 99% of the test FS size in the guest's memory 2.075 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.387
Then I find very few patterns in the guest's memory after 3 seconds 4.999 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
After features/support/hooks.rb:331 0.833
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:4.414
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 7.635
And I prepare Tails for memory erasure tests 0.411
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 33.815
Then I find very few patterns in the guest's memory 1.903 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.886
Then patterns cover at least 99% of the test FS size in the guest's memory 1.938 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.591
Then I find very few patterns in the guest's memory after 3 seconds 4.620 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
# read cache
When I mount the USB drive again 3.947
And I read the content of the test FS 0.332
Then patterns cover at least 99% of the test FS size in the guest's memory 2.078 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.484
Then I find very few patterns in the guest's memory after 3 seconds 4.768 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
After features/support/hooks.rb:331 1.089
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
44.792
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 7.362
And I prepare Tails for memory erasure tests 0.361
When I fill a 128 MiB file with a known pattern on the root filesystem 12.751
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.036
Then patterns cover at least 128 MiB in the guest's memory 1.718 
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 20.554 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
After features/support/hooks.rb:331 3.795
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:41.729
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:8.941
And I prepare Tails for memory erasure tests 0.361
When I fill a 128 MiB file with a known pattern on the persistent filesystem 11.345
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 21.074 
Pattern coverage: 0.000% (0 MiB out of 1526 MiB reference memory)
After features/support/hooks.rb:331 3.638
After features/support/hooks.rb:100 0.011