Project Number Date
test_Tails_ISO_stable 6665 14 Sep 2026, 20:49

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 7:51.459 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
24.972
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.397
And I prepare Tails for memory erasure tests 0.360
When I start a process allocating 128 MiB of memory with a known pattern 2.181
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 5.493 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.770
Then I find very few patterns in the guest's memory after 5 seconds 9.769 
Pattern coverage: 0.000% (0 MiB out of 1412 MiB reference memory)
After features/support/hooks.rb:339 1.030
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
28.158
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.008
Given I have started Tails from DVD without network and logged in 6.438
And I prepare Tails for memory erasure tests 0.413
And I find very few patterns in the guest's memory 4.822 
Pattern coverage: 0.000% (0 MiB out of 1426 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.676
Then patterns cover at least 99% of the test FS size in the guest's memory 7.569 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.412
Then I find very few patterns in the guest's memory after 3 seconds 6.824 
Pattern coverage: 0.000% (0 MiB out of 1426 MiB reference memory)
After features/support/hooks.rb:339 0.664
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
43.429
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.367
And I prepare Tails for memory erasure tests 0.378
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.466
Then I find very few patterns in the guest's memory 3.943 
Pattern coverage: 0.000% (0 MiB out of 1426 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.761
Then patterns cover at least 75% of the test FS size in the guest's memory 4.687 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.797
Then I find very few patterns in the guest's memory after 3 seconds 6.837 
Pattern coverage: 0.000% (0 MiB out of 1426 MiB reference memory)
# read cache
When I mount the USB drive again 0.195
And I read the content of the test FS 0.583
Then patterns cover at least 99% of the test FS size in the guest's memory 4.300 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.436
Then I find very few patterns in the guest's memory after 3 seconds 6.675 
Pattern coverage: 0.000% (0 MiB out of 1426 MiB reference memory)
After features/support/hooks.rb:339 0.890
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:7.230
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.482
And I prepare Tails for memory erasure tests 0.331
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 30.884
Then I find very few patterns in the guest's memory 3.395 
Pattern coverage: 0.000% (0 MiB out of 1409 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.307
Then patterns cover at least 99% of the test FS size in the guest's memory 4.066 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.542
Then I find very few patterns in the guest's memory after 3 seconds 6.049 
Pattern coverage: 0.000% (0 MiB out of 1409 MiB reference memory)
# read cache
When I mount the USB drive again 4.123
And I read the content of the test FS 0.365
Then patterns cover at least 99% of the test FS size in the guest's memory 3.147 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.489
Then I find very few patterns in the guest's memory after 3 seconds 6.044 
Pattern coverage: 0.000% (0 MiB out of 1409 MiB reference memory)
After features/support/hooks.rb:339 1.022
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
44.416
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.477
And I prepare Tails for memory erasure tests 0.375
When I fill a 128 MiB file with a known pattern on the root filesystem 12.850
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.463
Then patterns cover at least 128 MiB in the guest's memory 2.454 
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 20.789 
Pattern coverage: 0.000% (0 MiB out of 1405 MiB reference memory)
After features/support/hooks.rb:339 3.659
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:23.252
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:51.772
And I prepare Tails for memory erasure tests 0.278
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.862
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.333 
Pattern coverage: 0.000% (0 MiB out of 1423 MiB reference memory)
After features/support/hooks.rb:339 3.455
After features/support/hooks.rb:108 0.011