Project Number Date
test_Tails_ISO_stable 6723 05 Oct 2026, 12:24

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 7:42.977 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
19.993
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 6.361
And I prepare Tails for memory erasure tests 0.294
When I start a process allocating 128 MiB of memory with a known pattern 2.198
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 3.080 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.204
Then I find very few patterns in the guest's memory after 5 seconds 7.853 
Pattern coverage: 0.000% (0 MiB out of 1406 MiB reference memory)
After features/support/hooks.rb:339 0.726
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
21.292
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 6.430
And I prepare Tails for memory erasure tests 0.337
And I find very few patterns in the guest's memory 2.751 
Pattern coverage: 0.000% (0 MiB out of 1407 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.567
Then patterns cover at least 99% of the test FS size in the guest's memory 4.216 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.378
Then I find very few patterns in the guest's memory after 3 seconds 5.611 
Pattern coverage: 0.000% (0 MiB out of 1407 MiB reference memory)
After features/support/hooks.rb:339 0.914
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
37.163
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 6.363
And I prepare Tails for memory erasure tests 0.397
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.399
Then I find very few patterns in the guest's memory 2.755 
Pattern coverage: 0.000% (0 MiB out of 1403 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.763
Then patterns cover at least 75% of the test FS size in the guest's memory 3.138 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.669
Then I find very few patterns in the guest's memory after 3 seconds 5.685 
Pattern coverage: 0.000% (0 MiB out of 1403 MiB reference memory)
# read cache
When I mount the USB drive again 0.170
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 2.950 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.469
Then I find very few patterns in the guest's memory after 3 seconds 5.815 
Pattern coverage: 0.000% (0 MiB out of 1403 MiB reference memory)
After features/support/hooks.rb:339 0.644
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:2.012
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 6.509
And I prepare Tails for memory erasure tests 0.328
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.479
Then I find very few patterns in the guest's memory 2.674 
Pattern coverage: 0.000% (0 MiB out of 1403 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.275
Then patterns cover at least 99% of the test FS size in the guest's memory 2.653 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.462
Then I find very few patterns in the guest's memory after 3 seconds 5.532 
Pattern coverage: 0.000% (0 MiB out of 1403 MiB reference memory)
# read cache
When I mount the USB drive again 3.791
And I read the content of the test FS 0.361
Then patterns cover at least 99% of the test FS size in the guest's memory 3.002 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.376
Then I find very few patterns in the guest's memory after 3 seconds 5.563 
Pattern coverage: 0.000% (0 MiB out of 1403 MiB reference memory)
After features/support/hooks.rb:339 0.752
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
44.908
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 6.608
And I prepare Tails for memory erasure tests 0.379
When I fill a 128 MiB file with a known pattern on the root filesystem 13.330
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.705
Then patterns cover at least 128 MiB in the guest's memory 2.131 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.747 
Pattern coverage: 0.000% (0 MiB out of 1414 MiB reference memory)
After features/support/hooks.rb:339 3.642
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:37.607
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:5.298
And I prepare Tails for memory erasure tests 0.282
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.859
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.162 
Pattern coverage: 0.000% (0 MiB out of 1452 MiB reference memory)
After features/support/hooks.rb:339 3.710
After features/support/hooks.rb:108 0.036