Project Number Date
test_Tails_ISO_devel 4208 04 Feb 2026, 08:15

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 7:24.586 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
18.497
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 6.807
And I prepare Tails for memory erasure tests 0.386
When I start a process allocating 128 MiB of memory with a known pattern 2.235
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.964 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.194
Then I find very few patterns in the guest's memory after 5 seconds 6.909 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
After features/support/hooks.rb:331 1.051
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
19.019
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.956
And I prepare Tails for memory erasure tests 0.391
And I find very few patterns in the guest's memory 1.808 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.187
Then patterns cover at least 99% of the test FS size in the guest's memory 1.994 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.721
Then I find very few patterns in the guest's memory after 3 seconds 4.960 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
After features/support/hooks.rb:331 0.962
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
32.996
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.739
And I prepare Tails for memory erasure tests 0.342
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.206
Then I find very few patterns in the guest's memory 1.874 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.989
Then patterns cover at least 75% of the test FS size in the guest's memory 2.282 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.165
Then I find very few patterns in the guest's memory after 3 seconds 4.868 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
# read cache
When I mount the USB drive again 0.155
And I read the content of the test FS 0.438
Then patterns cover at least 99% of the test FS size in the guest's memory 1.915 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.313
Then I find very few patterns in the guest's memory after 3 seconds 4.705 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
After features/support/hooks.rb:331 0.813
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:11.663
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 6.713
And I prepare Tails for memory erasure tests 0.335
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 33.015
Then I find very few patterns in the guest's memory 1.672 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.214
Then patterns cover at least 99% of the test FS size in the guest's memory 1.805 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.870
Then I find very few patterns in the guest's memory after 3 seconds 4.888 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
# read cache
When I mount the USB drive again 13.366
And I read the content of the test FS 0.303
Then patterns cover at least 99% of the test FS size in the guest's memory 2.167 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.580
Then I find very few patterns in the guest's memory after 3 seconds 4.728 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
After features/support/hooks.rb:331 0.701
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
44.158
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.631
And I prepare Tails for memory erasure tests 0.361
When I fill a 128 MiB file with a known pattern on the root filesystem 13.596
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.653
Then patterns cover at least 128 MiB in the guest's memory 1.430 
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 20.478 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
After features/support/hooks.rb:331 3.425
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:18.251
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:45.869
And I prepare Tails for memory erasure tests 0.408
When I fill a 128 MiB file with a known pattern on the persistent filesystem 11.148
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.820 
Pattern coverage: 0.000% (0 MiB out of 1517 MiB reference memory)
After features/support/hooks.rb:331 3.530
After features/support/hooks.rb:100 0.010