Project Number Date
test_Tails_ISO_stable 6506 15 Jul 2026, 07:41

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 7:53.593 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
18.322
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 6.747
And I prepare Tails for memory erasure tests 0.380
When I start a process allocating 128 MiB of memory with a known pattern 2.295
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.933 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.171
Then I find very few patterns in the guest's memory after 5 seconds 6.793 
Pattern coverage: 0.000% (0 MiB out of 1456 MiB reference memory)
After features/support/hooks.rb:339 0.960
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
17.572
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 6.675
And I prepare Tails for memory erasure tests 0.333
And I find very few patterns in the guest's memory 1.794 
Pattern coverage: 0.000% (0 MiB out of 1456 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.624
Then patterns cover at least 99% of the test FS size in the guest's memory 1.972 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.368
Then I find very few patterns in the guest's memory after 3 seconds 4.804 
Pattern coverage: 0.000% (0 MiB out of 1456 MiB reference memory)
After features/support/hooks.rb:339 0.665
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
31.910
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 6.646
And I prepare Tails for memory erasure tests 0.347
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.281
Then I find very few patterns in the guest's memory 1.751 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.606
Then patterns cover at least 75% of the test FS size in the guest's memory 2.058 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.735
Then I find very few patterns in the guest's memory after 3 seconds 4.749 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
# read cache
When I mount the USB drive again 0.144
And I read the content of the test FS 0.388
Then patterns cover at least 99% of the test FS size in the guest's memory 2.021 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.427
Then I find very few patterns in the guest's memory after 3 seconds 4.752 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
After features/support/hooks.rb:339 0.869
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
57.650
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 6.465
And I prepare Tails for memory erasure tests 0.346
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.010
Then I find very few patterns in the guest's memory 1.752 
Pattern coverage: 0.000% (0 MiB out of 1461 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.223
Then patterns cover at least 99% of the test FS size in the guest's memory 1.861 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.468
Then I find very few patterns in the guest's memory after 3 seconds 4.660 
Pattern coverage: 0.000% (0 MiB out of 1461 MiB reference memory)
# read cache
When I mount the USB drive again 4.495
And I read the content of the test FS 0.399
Then patterns cover at least 99% of the test FS size in the guest's memory 1.859 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.444
Then I find very few patterns in the guest's memory after 3 seconds 4.662 
Pattern coverage: 0.000% (0 MiB out of 1461 MiB reference memory)
After features/support/hooks.rb:339 0.676
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:2.829
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 6.678
And I prepare Tails for memory erasure tests 0.370
When I fill a 128 MiB file with a known pattern on the root filesystem 32.078
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.699
Then patterns cover at least 128 MiB in the guest's memory 1.475 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.007
Then I find very few patterns in the guest's memory after 20 seconds 20.519 
Pattern coverage: 0.000% (0 MiB out of 1467 MiB reference memory)
After features/support/hooks.rb:339 3.775
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:45.307
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:57.854
And I prepare Tails for memory erasure tests 0.254
When I fill a 128 MiB file with a known pattern on the persistent filesystem 26.236
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.955 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
After features/support/hooks.rb:339 3.456
After features/support/hooks.rb:108 0.010