Project Number Date
test_Tails_ISO_devel 4562 20 Aug 2026, 11:20

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 8:8.883 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
24.176
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 6.414
And I prepare Tails for memory erasure tests 0.332
When I start a process allocating 128 MiB of memory with a known pattern 2.181
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 5.177 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.192
Then I find very few patterns in the guest's memory after 5 seconds 9.878 
Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)
After features/support/hooks.rb:339 1.032
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
26.560
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 6.544
And I prepare Tails for memory erasure tests 0.389
And I find very few patterns in the guest's memory 4.995 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.483
Then patterns cover at least 99% of the test FS size in the guest's memory 4.942 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.379
Then I find very few patterns in the guest's memory after 3 seconds 7.825 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
After features/support/hooks.rb:339 0.681
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
48.871
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 6.550
And I prepare Tails for memory erasure tests 0.352
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.384
Then I find very few patterns in the guest's memory 4.961 
Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.697
Then patterns cover at least 75% of the test FS size in the guest's memory 5.769 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.677
Then I find very few patterns in the guest's memory after 3 seconds 7.698 
Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)
# read cache
When I mount the USB drive again 0.285
And I read the content of the test FS 0.648
Then patterns cover at least 99% of the test FS size in the guest's memory 4.743 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.410
Then I find very few patterns in the guest's memory after 3 seconds 8.692 
Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)
After features/support/hooks.rb:339 0.877
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:11.802
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 6.221
And I prepare Tails for memory erasure tests 0.387
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.463
Then I find very few patterns in the guest's memory 4.440 
Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.303
Then patterns cover at least 99% of the test FS size in the guest's memory 4.828 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.524
Then I find very few patterns in the guest's memory after 3 seconds 7.612 
Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)
# read cache
When I mount the USB drive again 4.036
And I read the content of the test FS 0.377
Then patterns cover at least 99% of the test FS size in the guest's memory 4.880 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.519
Then I find very few patterns in the guest's memory after 3 seconds 7.207 
Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)
After features/support/hooks.rb:339 0.938
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
45.745
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 6.321
And I prepare Tails for memory erasure tests 0.359
When I fill a 128 MiB file with a known pattern on the root filesystem 13.966
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.419
Then patterns cover at least 128 MiB in the guest's memory 2.765 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.906 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
After features/support/hooks.rb:339 4.073
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:31.726
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 4:1.895
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 8.438
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.068 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
After features/support/hooks.rb:339 3.435
After features/support/hooks.rb:108 0.009