Project Number Date
test_Tails_ISO_stable 6596 19 Aug 2026, 13:30

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 8:2.452 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
24.714
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.006
Given I have started Tails from DVD without network and logged in 6.824
And I prepare Tails for memory erasure tests 0.487
When I start a process allocating 128 MiB of memory with a known pattern 2.291
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 4.717 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.744
Then I find very few patterns in the guest's memory after 5 seconds 9.650 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
After features/support/hooks.rb:339 1.048
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
25.408
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 6.557
And I prepare Tails for memory erasure tests 0.473
And I find very few patterns in the guest's memory 4.533 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.661
Then patterns cover at least 99% of the test FS size in the guest's memory 5.154 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.428
Then I find very few patterns in the guest's memory after 3 seconds 6.598 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
After features/support/hooks.rb:339 0.772
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
40.005
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 6.402
And I prepare Tails for memory erasure tests 0.484
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.386
Then I find very few patterns in the guest's memory 3.207 
Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.636
Then patterns cover at least 75% of the test FS size in the guest's memory 4.149 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.660
Then I find very few patterns in the guest's memory after 3 seconds 7.009 
Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)
# read cache
When I mount the USB drive again 0.235
And I read the content of the test FS 0.579
Then patterns cover at least 99% of the test FS size in the guest's memory 3.009 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.400
Then I find very few patterns in the guest's memory after 3 seconds 5.841 
Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)
After features/support/hooks.rb:339 0.808
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:5.581
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 6.377
And I prepare Tails for memory erasure tests 0.472
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 32.556
Then I find very few patterns in the guest's memory 3.007 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.034
Then patterns cover at least 99% of the test FS size in the guest's memory 2.797 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.450
Then I find very few patterns in the guest's memory after 3 seconds 5.724 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
# read cache
When I mount the USB drive again 3.936
And I read the content of the test FS 0.337
Then patterns cover at least 99% of the test FS size in the guest's memory 2.859 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.409
Then I find very few patterns in the guest's memory after 3 seconds 5.617 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
After features/support/hooks.rb:339 0.645
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
56.477
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 19.516
And I prepare Tails for memory erasure tests 0.438
When I fill a 128 MiB file with a known pattern on the root filesystem 12.228
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.376
Then patterns cover at least 128 MiB in the guest's memory 2.064 
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 20.847 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
After features/support/hooks.rb:339 3.635
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:30.264
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 3:58.790
And I prepare Tails for memory erasure tests 0.316
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.037
When I trigger shutdown 0.010
Then I find very few patterns in the guest's memory after 20 seconds 21.109 
Pattern coverage: 0.000% (0 MiB out of 1463 MiB reference memory)
After features/support/hooks.rb:339 3.497
After features/support/hooks.rb:108 0.056