Project Number Date
test_Tails_ISO_stable 6174 26 Feb 2026, 12:13

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 17:38.075 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
49.121
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.006
Given I have started Tails from DVD without network and logged in 8.923
And I prepare Tails for memory erasure tests 0.438
When I start a process allocating 128 MiB of memory with a known pattern 2.322
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 15.714 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 1.375
Then I find very few patterns in the guest's memory after 5 seconds 20.347 
Pattern coverage: 0.000% (0 MiB out of 1496 MiB reference memory)
After features/support/hooks.rb:331 1.079
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:2.840
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 9.131
And I prepare Tails for memory erasure tests 0.488
And I find very few patterns in the guest's memory 15.570 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 3.271
Then patterns cover at least 99% of the test FS size in the guest's memory 15.773 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 1.469
Then I find very few patterns in the guest's memory after 3 seconds 17.134 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
After features/support/hooks.rb:331 1.696
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
3:47.625
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.004
Given I have started Tails from DVD without network and logged in 9.012
And I prepare Tails for memory erasure tests 0.403
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.512
Then I find very few patterns in the guest's memory 15.095 
Pattern coverage: 0.000% (0 MiB out of 1500 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 3.215
Then patterns cover at least 75% of the test FS size in the guest's memory 30.616 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.817
Then I find very few patterns in the guest's memory after 3 seconds 26.093 
Pattern coverage: 0.000% (0 MiB out of 1500 MiB reference memory)
# read cache
When I mount the USB drive again 0.207
And I read the content of the test FS 0.655
Then patterns cover at least 99% of the test FS size in the guest's memory 36.973 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.386
Then I find very few patterns in the guest's memory after 3 seconds 1:36.636 
Pattern coverage: 0.000% (0 MiB out of 1500 MiB reference memory)
After features/support/hooks.rb:331 1.124
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:9.558
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 8.123
And I prepare Tails for memory erasure tests 0.408
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 1:5.119
Then I find very few patterns in the guest's memory 26.113 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 13.885
Then patterns cover at least 99% of the test FS size in the guest's memory 13.695 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.680
Then I find very few patterns in the guest's memory after 3 seconds 18.456 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
# read cache
When I mount the USB drive again 4.040
And I read the content of the test FS 0.545
Then patterns cover at least 99% of the test FS size in the guest's memory 28.267 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.517
Then I find very few patterns in the guest's memory after 3 seconds 1:9.703 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
After features/support/hooks.rb:331 17.968
After features/support/hooks.rb:100 0.025
Tags: @product @slow @not_release_blocker
1:11.451
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.098
Given I have started Tails from DVD without network and logged in 10.822
And I prepare Tails for memory erasure tests 0.515
When I fill a 128 MiB file with a known pattern on the root filesystem 11.626
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 3.956
Then patterns cover at least 128 MiB in the guest's memory 21.642 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 22.876 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
After features/support/hooks.rb:331 3.710
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
6:37.477
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 6:4.395
And I prepare Tails for memory erasure tests 0.420
When I fill a 128 MiB file with a known pattern on the persistent filesystem 8.883
When I trigger shutdown 0.011
Then I find very few patterns in the guest's memory after 20 seconds 23.766 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
After features/support/hooks.rb:331 8.844
After features/support/hooks.rb:100 0.015