Project Number Date
test_Tails_ISO_devel 4416 26 May 2026, 21:04

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 8:7.844 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
18.499
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.607
And I prepare Tails for memory erasure tests 0.349
When I start a process allocating 128 MiB of memory with a known pattern 1.291
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 3.020 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.227
Then I find very few patterns in the guest's memory after 5 seconds 7.002 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
After features/support/hooks.rb:335 0.719
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
18.707
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.561
And I prepare Tails for memory erasure tests 0.443
And I find very few patterns in the guest's memory 2.108 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.695
Then patterns cover at least 99% of the test FS size in the guest's memory 2.476 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.358
Then I find very few patterns in the guest's memory after 3 seconds 5.063 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
After features/support/hooks.rb:335 1.130
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
34.191
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails from DVD without network and logged in 6.679
And I prepare Tails for memory erasure tests 0.373
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.659
Then I find very few patterns in the guest's memory 2.017 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.653
Then patterns cover at least 75% of the test FS size in the guest's memory 2.265 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.692
Then I find very few patterns in the guest's memory after 3 seconds 5.189 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
# read cache
When I mount the USB drive again 0.293
And I read the content of the test FS 0.586
Then patterns cover at least 99% of the test FS size in the guest's memory 2.074 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.547
Then I find very few patterns in the guest's memory after 3 seconds 5.159 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
After features/support/hooks.rb:335 1.232
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
1:1.328
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails from DVD without network and logged in 6.870
And I prepare Tails for memory erasure tests 0.351
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 30.090
Then I find very few patterns in the guest's memory 2.137 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.616
Then patterns cover at least 99% of the test FS size in the guest's memory 2.251 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.571
Then I find very few patterns in the guest's memory after 3 seconds 4.886 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
# read cache
When I mount the USB drive again 3.700
And I read the content of the test FS 0.322
Then patterns cover at least 99% of the test FS size in the guest's memory 3.064 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.516
Then I find very few patterns in the guest's memory after 3 seconds 4.948 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
After features/support/hooks.rb:335 1.121
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
59.431
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.937
And I prepare Tails for memory erasure tests 0.362
When I fill a 128 MiB file with a known pattern on the root filesystem 27.785
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.079
Then patterns cover at least 128 MiB in the guest's memory 1.583 
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 20.677 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
After features/support/hooks.rb:335 3.705
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
4:55.685
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:15.050
And I prepare Tails for memory erasure tests 0.450
When I fill a 128 MiB file with a known pattern on the persistent filesystem 18.970
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.209 
Pattern coverage: 0.000% (0 MiB out of 1544 MiB reference memory)
After features/support/hooks.rb:335 3.688
After features/support/hooks.rb:104 0.010