Project Number Date
test_Tails_ISO_stable 6477 30 Jun 2026, 11:40

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 7:44.355 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
17.088
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 6.537
And I prepare Tails for memory erasure tests 0.395
When I start a process allocating 128 MiB of memory with a known pattern 1.148
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.915 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.170
Then I find very few patterns in the guest's memory after 5 seconds 6.921 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
After features/support/hooks.rb:339 0.760
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
17.603
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 6.820
And I prepare Tails for memory erasure tests 0.446
And I find very few patterns in the guest's memory 1.815 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.476
Then patterns cover at least 99% of the test FS size in the guest's memory 1.893 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.305
Then I find very few patterns in the guest's memory after 3 seconds 4.845 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
After features/support/hooks.rb:339 0.654
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
32.329
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 6.917
And I prepare Tails for memory erasure tests 0.396
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.248
Then I find very few patterns in the guest's memory 1.719 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.357
Then patterns cover at least 75% of the test FS size in the guest's memory 2.020 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.706
Then I find very few patterns in the guest's memory after 3 seconds 5.006 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
# read cache
When I mount the USB drive again 0.142
And I read the content of the test FS 0.422
Then patterns cover at least 99% of the test FS size in the guest's memory 2.135 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.363
Then I find very few patterns in the guest's memory after 3 seconds 4.892 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
After features/support/hooks.rb:339 0.874
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
58.094
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 6.564
And I prepare Tails for memory erasure tests 0.360
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.430
Then I find very few patterns in the guest's memory 1.739 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.215
Then patterns cover at least 99% of the test FS size in the guest's memory 1.754 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.494
Then I find very few patterns in the guest's memory after 3 seconds 4.627 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
# read cache
When I mount the USB drive again 4.199
And I read the content of the test FS 0.413
Then patterns cover at least 99% of the test FS size in the guest's memory 2.008 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.534
Then I find very few patterns in the guest's memory after 3 seconds 4.752 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
After features/support/hooks.rb:339 0.670
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:3.821
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 6.585
And I prepare Tails for memory erasure tests 0.368
When I fill a 128 MiB file with a known pattern on the root filesystem 32.793
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.051
Then patterns cover at least 128 MiB in the guest's memory 1.501 
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 20.514 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
After features/support/hooks.rb:339 3.768
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:35.418
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 3:48.943
And I prepare Tails for memory erasure tests 0.289
When I fill a 128 MiB file with a known pattern on the persistent filesystem 25.299
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.880 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
After features/support/hooks.rb:339 3.837
After features/support/hooks.rb:108 0.009