Project Number Date
test_Tails_ISO_stable 6529 24 Jul 2026, 11:36

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 7:35.302 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
17.875
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 6.409
And I prepare Tails for memory erasure tests 0.299
When I start a process allocating 128 MiB of memory with a known pattern 2.263
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.036 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.178
Then I find very few patterns in the guest's memory after 5 seconds 6.687 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
After features/support/hooks.rb:339 0.907
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
17.228
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 6.482
And I prepare Tails for memory erasure tests 0.300
And I find very few patterns in the guest's memory 1.796 
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 1.643
Then patterns cover at least 99% of the test FS size in the guest's memory 1.937 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.364
Then I find very few patterns in the guest's memory after 3 seconds 4.703 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
After features/support/hooks.rb:339 1.004
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
31.291
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 6.464
And I prepare Tails for memory erasure tests 0.305
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.203
Then I find very few patterns in the guest's memory 1.807 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.490
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 0.766
Then I find very few patterns in the guest's memory after 3 seconds 4.679 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
# read cache
When I mount the USB drive again 0.159
And I read the content of the test FS 0.398
Then patterns cover at least 99% of the test FS size in the guest's memory 1.888 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.391
Then I find very few patterns in the guest's memory after 3 seconds 4.713 
Pattern coverage: 0.000% (0 MiB out of 1483 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
1:0.977
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 6.682
And I prepare Tails for memory erasure tests 0.364
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 32.378
Then I find very few patterns in the guest's memory 1.747 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.159
Then patterns cover at least 99% of the test FS size in the guest's memory 1.775 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.521
Then I find very few patterns in the guest's memory after 3 seconds 4.612 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
# read cache
When I mount the USB drive again 4.548
And I read the content of the test FS 0.279
Then patterns cover at least 99% of the test FS size in the guest's memory 1.782 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.405
Then I find very few patterns in the guest's memory after 3 seconds 4.718 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
After features/support/hooks.rb:339 0.794
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:2.581
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 6.548
And I prepare Tails for memory erasure tests 0.328
When I fill a 128 MiB file with a known pattern on the root filesystem 32.085
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.502
Then patterns cover at least 128 MiB in the guest's memory 1.563 
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 20.548 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
After features/support/hooks.rb:339 3.530
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:25.348
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 3:39.126
And I prepare Tails for memory erasure tests 0.318
When I fill a 128 MiB file with a known pattern on the persistent filesystem 25.040
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.856 
Pattern coverage: 0.000% (0 MiB out of 1445 MiB reference memory)
After features/support/hooks.rb:339 3.859
After features/support/hooks.rb:108 0.011