Project Number Date
test_Tails_ISO_stable 6361 08 May 2026, 18:12

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 7:28.738 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
18.161
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.499
And I prepare Tails for memory erasure tests 0.379
When I start a process allocating 128 MiB of memory with a known pattern 2.223
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.104 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.214
Then I find very few patterns in the guest's memory after 5 seconds 6.739 
Pattern coverage: 0.000% (0 MiB out of 1543 MiB reference memory)
After features/support/hooks.rb:331 0.574
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
17.443
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 6.416
And I prepare Tails for memory erasure tests 0.408
And I find very few patterns in the guest's memory 1.729 
Pattern coverage: 0.000% (0 MiB out of 1546 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.682
Then patterns cover at least 99% of the test FS size in the guest's memory 2.064 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.347
Then I find very few patterns in the guest's memory after 3 seconds 4.793 
Pattern coverage: 0.000% (0 MiB out of 1546 MiB reference memory)
After features/support/hooks.rb:331 0.776
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
32.046
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.575
And I prepare Tails for memory erasure tests 0.375
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.130
Then I find very few patterns in the guest's memory 1.849 
Pattern coverage: 0.000% (0 MiB out of 1554 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.583
Then patterns cover at least 75% of the test FS size in the guest's memory 1.997 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.758
Then I find very few patterns in the guest's memory after 3 seconds 4.935 
Pattern coverage: 0.000% (0 MiB out of 1554 MiB reference memory)
# read cache
When I mount the USB drive again 0.139
And I read the content of the test FS 0.408
Then patterns cover at least 99% of the test FS size in the guest's memory 1.923 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.347
Then I find very few patterns in the guest's memory after 3 seconds 5.022 
Pattern coverage: 0.000% (0 MiB out of 1554 MiB reference memory)
After features/support/hooks.rb:331 0.741
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
57.322
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.647
And I prepare Tails for memory erasure tests 0.429
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.551
Then I find very few patterns in the guest's memory 1.755 
Pattern coverage: 0.000% (0 MiB out of 1549 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.371
Then patterns cover at least 99% of the test FS size in the guest's memory 1.974 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.478
Then I find very few patterns in the guest's memory after 3 seconds 4.795 
Pattern coverage: 0.000% (0 MiB out of 1549 MiB reference memory)
# read cache
When I mount the USB drive again 4.136
And I read the content of the test FS 0.284
Then patterns cover at least 99% of the test FS size in the guest's memory 1.815 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.451
Then I find very few patterns in the guest's memory after 3 seconds 4.629 
Pattern coverage: 0.000% (0 MiB out of 1549 MiB reference memory)
After features/support/hooks.rb:331 1.017
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
57.632
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 6.768
And I prepare Tails for memory erasure tests 0.462
When I fill a 128 MiB file with a known pattern on the root filesystem 26.638
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.780
Then patterns cover at least 128 MiB in the guest's memory 1.491 
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 20.484 
Pattern coverage: 0.000% (0 MiB out of 1555 MiB reference memory)
After features/support/hooks.rb:331 3.464
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:26.132
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:48.902
And I prepare Tails for memory erasure tests 0.292
When I fill a 128 MiB file with a known pattern on the persistent filesystem 16.005
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.925 
Pattern coverage: 0.000% (0 MiB out of 1496 MiB reference memory)
After features/support/hooks.rb:331 3.577
After features/support/hooks.rb:100 0.009