Project Number Date
test_Tails_ISO_stable 6639 04 Sep 2026, 11:21

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 7:3.848 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
20.109
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 6.201
And I prepare Tails for memory erasure tests 0.349
When I start a process allocating 128 MiB of memory with a known pattern 2.225
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 3.017 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.723
Then I find very few patterns in the guest's memory after 5 seconds 7.591 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
After features/support/hooks.rb:339 0.634
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
19.431
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 6.160
And I prepare Tails for memory erasure tests 0.354
And I find very few patterns in the guest's memory 2.481 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.475
Then patterns cover at least 99% of the test FS size in the guest's memory 2.820 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.432
Then I find very few patterns in the guest's memory after 3 seconds 5.706 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
After features/support/hooks.rb:339 0.765
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
35.976
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 6.318
And I prepare Tails for memory erasure tests 0.252
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.078
Then I find very few patterns in the guest's memory 2.759 
Pattern coverage: 0.000% (0 MiB out of 1475 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 2.977 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.638
Then I find very few patterns in the guest's memory after 3 seconds 5.820 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
# read cache
When I mount the USB drive again 0.220
And I read the content of the test FS 0.547
Then patterns cover at least 99% of the test FS size in the guest's memory 2.851 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.384
Then I find very few patterns in the guest's memory after 3 seconds 5.587 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
After features/support/hooks.rb:339 0.747
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:0.322
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 6.211
And I prepare Tails for memory erasure tests 0.281
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.720
Then I find very few patterns in the guest's memory 2.502 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.041
Then patterns cover at least 99% of the test FS size in the guest's memory 2.600 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.510
Then I find very few patterns in the guest's memory after 3 seconds 5.502 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
# read cache
When I mount the USB drive again 3.876
And I read the content of the test FS 0.404
Then patterns cover at least 99% of the test FS size in the guest's memory 2.673 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.358
Then I find very few patterns in the guest's memory after 3 seconds 5.639 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
After features/support/hooks.rb:339 0.942
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
44.416
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 6.315
And I prepare Tails for memory erasure tests 0.266
When I fill a 128 MiB file with a known pattern on the root filesystem 13.139
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.669
Then patterns cover at least 128 MiB in the guest's memory 2.135 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.025
Then I find very few patterns in the guest's memory after 20 seconds 20.864 
Pattern coverage: 0.000% (0 MiB out of 1457 MiB reference memory)
After features/support/hooks.rb:339 3.673
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:3.592
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 3:31.986
And I prepare Tails for memory erasure tests 0.262
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.298
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.040 
Pattern coverage: 0.000% (0 MiB out of 1451 MiB reference memory)
After features/support/hooks.rb:339 3.537
After features/support/hooks.rb:108 0.023