Project Number Date
test_Tails_ISO_stable 6488 05 Jul 2026, 11:39

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 7:48.338 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
18.222
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 6.477
And I prepare Tails for memory erasure tests 0.376
When I start a process allocating 128 MiB of memory with a known pattern 1.326
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.572 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.645
Then I find very few patterns in the guest's memory after 5 seconds 6.824 
Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)
After features/support/hooks.rb:339 0.969
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
17.927
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 6.476
And I prepare Tails for memory erasure tests 0.353
And I find very few patterns in the guest's memory 1.985 
Pattern coverage: 0.000% (0 MiB out of 1467 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.710
Then patterns cover at least 99% of the test FS size in the guest's memory 2.145 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.382
Then I find very few patterns in the guest's memory after 3 seconds 4.875 
Pattern coverage: 0.000% (0 MiB out of 1467 MiB reference memory)
After features/support/hooks.rb:339 0.885
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
32.184
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 6.504
And I prepare Tails for memory erasure tests 0.351
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.483
Then I find very few patterns in the guest's memory 2.060 
Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.386
Then patterns cover at least 75% of the test FS size in the guest's memory 2.061 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.648
Then I find very few patterns in the guest's memory after 3 seconds 4.835 
Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)
# read cache
When I mount the USB drive again 0.171
And I read the content of the test FS 0.393
Then patterns cover at least 99% of the test FS size in the guest's memory 1.976 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.340
Then I find very few patterns in the guest's memory after 3 seconds 4.969 
Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)
After features/support/hooks.rb:339 1.098
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
56.291
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 6.667
And I prepare Tails for memory erasure tests 0.352
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.022
Then I find very few patterns in the guest's memory 1.975 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.188
Then patterns cover at least 99% of the test FS size in the guest's memory 1.925 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.522
Then I find very few patterns in the guest's memory after 3 seconds 4.651 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
# read cache
When I mount the USB drive again 3.479
And I read the content of the test FS 0.290
Then patterns cover at least 99% of the test FS size in the guest's memory 1.771 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.430
Then I find very few patterns in the guest's memory after 3 seconds 5.012 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
After features/support/hooks.rb:339 1.098
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:4.998
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 0.320
When I fill a 128 MiB file with a known pattern on the root filesystem 33.824
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.068
Then patterns cover at least 128 MiB in the guest's memory 1.565 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.530 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
After features/support/hooks.rb:339 3.561
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:38.715
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.004
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:51.762
And I prepare Tails for memory erasure tests 0.455
When I fill a 128 MiB file with a known pattern on the persistent filesystem 25.539
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.951 
Pattern coverage: 0.000% (0 MiB out of 1531 MiB reference memory)
After features/support/hooks.rb:339 3.633
After features/support/hooks.rb:108 0.010