Project Number Date
test_Tails_ISO_stable 6250 31 Mar 2026, 11:34

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 7:39.294 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
21.702
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 6.590
And I prepare Tails for memory erasure tests 0.450
When I start a process allocating 128 MiB of memory with a known pattern 5.285
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.269 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.315
Then I find very few patterns in the guest's memory after 5 seconds 6.790 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
After features/support/hooks.rb:331 1.147
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
18.302
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 6.602
And I prepare Tails for memory erasure tests 0.478
And I find very few patterns in the guest's memory 2.130 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.687
Then patterns cover at least 99% of the test FS size in the guest's memory 2.146 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.372
Then I find very few patterns in the guest's memory after 3 seconds 4.884 
Pattern coverage: 0.000% (0 MiB out of 1476 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
32.882
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 6.465
And I prepare Tails for memory erasure tests 0.410
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.696
Then I find very few patterns in the guest's memory 1.907 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.391
Then patterns cover at least 75% of the test FS size in the guest's memory 2.202 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.857
Then I find very few patterns in the guest's memory after 3 seconds 4.718 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
# read cache
When I mount the USB drive again 0.222
And I read the content of the test FS 0.456
Then patterns cover at least 99% of the test FS size in the guest's memory 1.990 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.848
Then I find very few patterns in the guest's memory after 3 seconds 4.715 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
After features/support/hooks.rb:331 1.061
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:12.583
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 6.618
And I prepare Tails for memory erasure tests 0.395
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 35.385
Then I find very few patterns in the guest's memory 1.782 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.698
Then patterns cover at least 99% of the test FS size in the guest's memory 1.758 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.781
Then I find very few patterns in the guest's memory after 3 seconds 4.710 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
# read cache
When I mount the USB drive again 11.973
And I read the content of the test FS 0.268
Then patterns cover at least 99% of the test FS size in the guest's memory 1.698 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.850
Then I find very few patterns in the guest's memory after 3 seconds 4.660 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
After features/support/hooks.rb:331 1.256
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
51.210
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 6.987
And I prepare Tails for memory erasure tests 0.362
When I fill a 128 MiB file with a known pattern on the root filesystem 12.647
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 9.041
Then patterns cover at least 128 MiB in the guest's memory 1.659 
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 20.501 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
After features/support/hooks.rb:331 3.423
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:22.612
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 3:50.347
And I prepare Tails for memory erasure tests 0.347
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.981
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.930 
Pattern coverage: 0.000% (0 MiB out of 1509 MiB reference memory)
After features/support/hooks.rb:331 3.711
After features/support/hooks.rb:100 0.017