Project Number Date
test_Tails_ISO_stable 6040 06 Jan 2026, 12:11

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 14:41.142 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
42.995
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 7.745
And I prepare Tails for memory erasure tests 0.510
When I start a process allocating 128 MiB of memory with a known pattern 1.143
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 15.070 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.136
Then I find very few patterns in the guest's memory after 5 seconds 18.389 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
After features/support/hooks.rb:331 0.926
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
57.029
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 7.762
And I prepare Tails for memory erasure tests 0.338
And I find very few patterns in the guest's memory 14.079 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 0.541
Then patterns cover at least 99% of the test FS size in the guest's memory 15.086 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.088
Then I find very few patterns in the guest's memory after 3 seconds 19.132 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
After features/support/hooks.rb:331 0.898
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:8.654
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 7.809
And I prepare Tails for memory erasure tests 0.406
When I plug and mount a 128 MiB USB drive with a vfat filesystem 8.202
Then I find very few patterns in the guest's memory 16.014 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.107
Then patterns cover at least 75% of the test FS size in the guest's memory 23.566 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.223
Then I find very few patterns in the guest's memory after 3 seconds 34.742 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
# read cache
When I mount the USB drive again 0.142
And I read the content of the test FS 0.460
Then patterns cover at least 99% of the test FS size in the guest's memory 15.684 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.132
Then I find very few patterns in the guest's memory after 3 seconds 20.162 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
After features/support/hooks.rb:331 0.721
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:4.322
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 7.706
And I prepare Tails for memory erasure tests 0.333
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 25.957
Then I find very few patterns in the guest's memory 17.438 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.693
Then patterns cover at least 99% of the test FS size in the guest's memory 14.636 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 3.545
Then I find very few patterns in the guest's memory after 3 seconds 18.839 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
# read cache
When I mount the USB drive again 2.169
And I read the content of the test FS 0.318
Then patterns cover at least 99% of the test FS size in the guest's memory 13.269 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.329
Then I find very few patterns in the guest's memory after 3 seconds 17.084 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
After features/support/hooks.rb:331 2.310
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:3.045
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 16.276
And I prepare Tails for memory erasure tests 0.500
When I fill a 128 MiB file with a known pattern on the root filesystem 9.556
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 0.314
Then patterns cover at least 128 MiB in the guest's memory 11.978 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.011
Then I find very few patterns in the guest's memory after 20 seconds 24.408 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
After features/support/hooks.rb:331 3.706
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
7:45.093
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 7:6.288
And I prepare Tails for memory erasure tests 0.413
When I fill a 128 MiB file with a known pattern on the persistent filesystem 8.973
When I trigger shutdown 0.009
Then I find very few patterns in the guest's memory after 20 seconds 29.407 
Pattern coverage: 0.000% (0 MiB out of 1516 MiB reference memory)
After features/support/hooks.rb:331 3.780
After features/support/hooks.rb:100 0.015