Project Number Date
test_Tails_ISO_stable 6679 17 Sep 2026, 14:24

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 7:41.402 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
20.248
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 6.291
And I prepare Tails for memory erasure tests 0.456
When I start a process allocating 128 MiB of memory with a known pattern 2.222
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.906 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.749
Then I find very few patterns in the guest's memory after 5 seconds 7.621 
Pattern coverage: 0.000% (0 MiB out of 1407 MiB reference memory)
After features/support/hooks.rb:339 0.959
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
21.346
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 6.721
And I prepare Tails for memory erasure tests 0.322
And I find very few patterns in the guest's memory 2.982 
Pattern coverage: 0.000% (0 MiB out of 1402 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.646
Then patterns cover at least 99% of the test FS size in the guest's memory 3.486 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.476
Then I find very few patterns in the guest's memory after 3 seconds 5.711 
Pattern coverage: 0.000% (0 MiB out of 1402 MiB reference memory)
After features/support/hooks.rb:339 0.903
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
38.156
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 6.597
And I prepare Tails for memory erasure tests 0.318
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.545
Then I find very few patterns in the guest's memory 2.789 
Pattern coverage: 0.000% (0 MiB out of 1400 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.669
Then patterns cover at least 75% of the test FS size in the guest's memory 3.054 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.764
Then I find very few patterns in the guest's memory after 3 seconds 5.954 
Pattern coverage: 0.000% (0 MiB out of 1400 MiB reference memory)
# read cache
When I mount the USB drive again 0.212
And I read the content of the test FS 0.859
Then patterns cover at least 99% of the test FS size in the guest's memory 3.081 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.526
Then I find very few patterns in the guest's memory after 3 seconds 5.783 
Pattern coverage: 0.000% (0 MiB out of 1400 MiB reference memory)
After features/support/hooks.rb:339 0.693
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:3.275
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.004
Given I have started Tails from DVD without network and logged in 6.735
And I prepare Tails for memory erasure tests 0.350
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.356
Then I find very few patterns in the guest's memory 2.689 
Pattern coverage: 0.000% (0 MiB out of 1408 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.437
Then patterns cover at least 99% of the test FS size in the guest's memory 2.854 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.485
Then I find very few patterns in the guest's memory after 3 seconds 5.746 
Pattern coverage: 0.000% (0 MiB out of 1408 MiB reference memory)
# read cache
When I mount the USB drive again 4.397
And I read the content of the test FS 0.432
Then patterns cover at least 99% of the test FS size in the guest's memory 2.683 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.432
Then I find very few patterns in the guest's memory after 3 seconds 5.672 
Pattern coverage: 0.000% (0 MiB out of 1408 MiB reference memory)
After features/support/hooks.rb:339 1.299
After features/support/hooks.rb:108 0.014
Tags: @product @slow @not_release_blocker
45.313
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.018
Given I have started Tails from DVD without network and logged in 6.724
And I prepare Tails for memory erasure tests 0.399
When I fill a 128 MiB file with a known pattern on the root filesystem 13.184
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.707
Then patterns cover at least 128 MiB in the guest's memory 2.338 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.008
Then I find very few patterns in the guest's memory after 20 seconds 20.950 
Pattern coverage: 0.000% (0 MiB out of 1395 MiB reference memory)
After features/support/hooks.rb:339 3.719
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:33.061
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 4:0.276
And I prepare Tails for memory erasure tests 0.334
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.930
When I trigger shutdown 0.013
Then I find very few patterns in the guest's memory after 20 seconds 21.506 
Pattern coverage: 0.000% (0 MiB out of 1436 MiB reference memory)
After features/support/hooks.rb:339 3.621
After features/support/hooks.rb:108 0.012