Project Number Date
test_Tails_ISO_stable 6693 26 Sep 2026, 12:16

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 7:27.164 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
20.540
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 6.385
And I prepare Tails for memory erasure tests 0.308
When I start a process allocating 128 MiB of memory with a known pattern 2.260
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.916 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.965
Then I find very few patterns in the guest's memory after 5 seconds 7.702 
Pattern coverage: 0.000% (0 MiB out of 1421 MiB reference memory)
After features/support/hooks.rb:339 0.703
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
21.067
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 6.447
And I prepare Tails for memory erasure tests 0.413
And I find very few patterns in the guest's memory 2.677 
Pattern coverage: 0.000% (0 MiB out of 1413 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.903
Then patterns cover at least 99% of the test FS size in the guest's memory 3.082 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.473
Then I find very few patterns in the guest's memory after 3 seconds 6.070 
Pattern coverage: 0.000% (0 MiB out of 1413 MiB reference memory)
After features/support/hooks.rb:339 0.777
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
37.715
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 6.230
And I prepare Tails for memory erasure tests 0.402
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.762
Then I find very few patterns in the guest's memory 2.785 
Pattern coverage: 0.000% (0 MiB out of 1421 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.896
Then patterns cover at least 75% of the test FS size in the guest's memory 3.183 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.768
Then I find very few patterns in the guest's memory after 3 seconds 5.665 
Pattern coverage: 0.000% (0 MiB out of 1421 MiB reference memory)
# read cache
When I mount the USB drive again 0.222
And I read the content of the test FS 0.611
Then patterns cover at least 99% of the test FS size in the guest's memory 2.986 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.564
Then I find very few patterns in the guest's memory after 3 seconds 5.635 
Pattern coverage: 0.000% (0 MiB out of 1421 MiB reference memory)
After features/support/hooks.rb:339 1.184
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:3.506
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 6.414
And I prepare Tails for memory erasure tests 0.338
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.950
Then I find very few patterns in the guest's memory 2.915 
Pattern coverage: 0.000% (0 MiB out of 1420 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.118
Then patterns cover at least 99% of the test FS size in the guest's memory 2.792 
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 5.681 
Pattern coverage: 0.000% (0 MiB out of 1420 MiB reference memory)
# read cache
When I mount the USB drive again 4.497
And I read the content of the test FS 0.363
Then patterns cover at least 99% of the test FS size in the guest's memory 2.888 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.576
Then I find very few patterns in the guest's memory after 3 seconds 5.446 
Pattern coverage: 0.000% (0 MiB out of 1420 MiB reference memory)
After features/support/hooks.rb:339 0.779
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
45.343
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 6.390
And I prepare Tails for memory erasure tests 0.376
When I fill a 128 MiB file with a known pattern on the root filesystem 14.015
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.604
Then patterns cover at least 128 MiB in the guest's memory 2.218 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.732 
Pattern coverage: 0.000% (0 MiB out of 1413 MiB reference memory)
After features/support/hooks.rb:339 3.676
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:18.990
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 3:47.713
And I prepare Tails for memory erasure tests 0.273
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.767
When I trigger shutdown 0.013
Then I find very few patterns in the guest's memory after 20 seconds 21.223 
Pattern coverage: 0.000% (0 MiB out of 1454 MiB reference memory)
After features/support/hooks.rb:339 3.696
After features/support/hooks.rb:108 0.009