Project Number Date
test_Tails_ISO_stable 5930 04 Nov 2025, 12:34

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 14:4.571 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
52.465
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 8.255
And I prepare Tails for memory erasure tests 0.375
When I start a process allocating 128 MiB of memory with a known pattern 2.274
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 18.857 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.218
Then I find very few patterns in the guest's memory after 5 seconds 22.483 
Pattern coverage: 0.000% (0 MiB out of 1511 MiB reference memory)
After features/support/hooks.rb:331 2.217
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:4.466
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 8.608
And I prepare Tails for memory erasure tests 0.434
And I find very few patterns in the guest's memory 21.349 
Pattern coverage: 0.000% (0 MiB out of 1510 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.788
Then patterns cover at least 99% of the test FS size in the guest's memory 14.930 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.403
Then I find very few patterns in the guest's memory after 3 seconds 16.951 
Pattern coverage: 0.000% (0 MiB out of 1510 MiB reference memory)
After features/support/hooks.rb:331 1.243
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:42.090
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 8.443
And I prepare Tails for memory erasure tests 0.395
When I plug and mount a 128 MiB USB drive with a vfat filesystem 7.076
Then I find very few patterns in the guest's memory 14.326 
Pattern coverage: 0.000% (0 MiB out of 1511 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.597
Then patterns cover at least 75% of the test FS size in the guest's memory 15.762 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.957
Then I find very few patterns in the guest's memory after 3 seconds 16.741 
Pattern coverage: 0.000% (0 MiB out of 1511 MiB reference memory)
# read cache
When I mount the USB drive again 0.206
And I read the content of the test FS 0.779
Then patterns cover at least 99% of the test FS size in the guest's memory 14.937 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.437
Then I find very few patterns in the guest's memory after 3 seconds 19.427 
Pattern coverage: 0.000% (0 MiB out of 1511 MiB reference memory)
After features/support/hooks.rb:331 0.901
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:19.054
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 8.817
And I prepare Tails for memory erasure tests 0.386
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 31.404
Then I find very few patterns in the guest's memory 17.043 
Pattern coverage: 0.000% (0 MiB out of 1513 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.748
Then patterns cover at least 99% of the test FS size in the guest's memory 13.383 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.669
Then I find very few patterns in the guest's memory after 3 seconds 17.226 
Pattern coverage: 0.000% (0 MiB out of 1513 MiB reference memory)
# read cache
When I mount the USB drive again 4.854
And I read the content of the test FS 0.432
Then patterns cover at least 99% of the test FS size in the guest's memory 25.122 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.607
Then I find very few patterns in the guest's memory after 3 seconds 17.358 
Pattern coverage: 0.000% (0 MiB out of 1513 MiB reference memory)
After features/support/hooks.rb:331 1.025
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
55.186
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 8.426
And I prepare Tails for memory erasure tests 0.384
When I fill a 128 MiB file with a known pattern on the root filesystem 10.512
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.893
Then patterns cover at least 128 MiB in the guest's memory 10.132 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.009
Then I find very few patterns in the guest's memory after 20 seconds 22.827 
Pattern coverage: 0.000% (0 MiB out of 1509 MiB reference memory)
After features/support/hooks.rb:331 3.516
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
7:11.308
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 6:38.527
And I prepare Tails for memory erasure tests 0.389
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.018
When I trigger shutdown 0.017
Then I find very few patterns in the guest's memory after 20 seconds 23.355 
Pattern coverage: 0.000% (0 MiB out of 1507 MiB reference memory)
After features/support/hooks.rb:331 3.843
After features/support/hooks.rb:100 0.014