Project Number Date
test_Tails_ISO_stable 6023 26 Dec 2025, 12:01

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 16:33.828 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
50.276
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 9.563
And I prepare Tails for memory erasure tests 0.422
When I start a process allocating 128 MiB of memory with a known pattern 2.354
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 16.449 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.823
Then I find very few patterns in the guest's memory after 5 seconds 20.662 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
After features/support/hooks.rb:331 1.258
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:1.002
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.015
Given I have started Tails from DVD without network and logged in 8.831
And I prepare Tails for memory erasure tests 0.381
And I find very few patterns in the guest's memory 14.301 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.661
Then patterns cover at least 99% of the test FS size in the guest's memory 15.788 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.493
Then I find very few patterns in the guest's memory after 3 seconds 19.543 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
After features/support/hooks.rb:331 1.006
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:42.292
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 8.783
And I prepare Tails for memory erasure tests 0.503
When I plug and mount a 128 MiB USB drive with a vfat filesystem 7.916
Then I find very few patterns in the guest's memory 14.501 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 3.820
Then patterns cover at least 75% of the test FS size in the guest's memory 16.278 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.919
Then I find very few patterns in the guest's memory after 3 seconds 26.247 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
# read cache
When I mount the USB drive again 0.270
And I read the content of the test FS 1.570
Then patterns cover at least 99% of the test FS size in the guest's memory 37.884 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.567
Then I find very few patterns in the guest's memory after 3 seconds 43.028 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
After features/support/hooks.rb:331 1.118
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:7.502
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 8.430
And I prepare Tails for memory erasure tests 0.369
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 32.425
Then I find very few patterns in the guest's memory 46.792 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.831
Then patterns cover at least 99% of the test FS size in the guest's memory 32.395 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.674
Then I find very few patterns in the guest's memory after 3 seconds 34.667 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
# read cache
When I mount the USB drive again 3.859
And I read the content of the test FS 0.701
Then patterns cover at least 99% of the test FS size in the guest's memory 37.948 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 18.364
Then I find very few patterns in the guest's memory after 3 seconds 28.040 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
After features/support/hooks.rb:331 0.877
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:0.638
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 10.050
And I prepare Tails for memory erasure tests 0.404
When I fill a 128 MiB file with a known pattern on the root filesystem 10.607
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 4.004
Then patterns cover at least 128 MiB in the guest's memory 10.301 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.010
Then I find very few patterns in the guest's memory after 20 seconds 25.259 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
After features/support/hooks.rb:331 3.604
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
6:52.115
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 6:9.028
And I prepare Tails for memory erasure tests 0.382
When I fill a 128 MiB file with a known pattern on the persistent filesystem 19.017
When I trigger shutdown 0.011
Then I find very few patterns in the guest's memory after 20 seconds 23.675 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
After features/support/hooks.rb:331 3.659
After features/support/hooks.rb:100 0.015