Project Number Date
test_Tails_ISO_stable 6564 06 Aug 2026, 12:59

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 7:36.914 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
20.239
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 6.480
And I prepare Tails for memory erasure tests 0.343
When I start a process allocating 128 MiB of memory with a known pattern 2.297
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 3.098 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.238
Then I find very few patterns in the guest's memory after 5 seconds 7.781 
Pattern coverage: 0.000% (0 MiB out of 1462 MiB reference memory)
After features/support/hooks.rb:339 0.952
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
20.519
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.004
Given I have started Tails from DVD without network and logged in 6.375
And I prepare Tails for memory erasure tests 0.316
And I find very few patterns in the guest's memory 2.653 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.895
Then patterns cover at least 99% of the test FS size in the guest's memory 3.077 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.438
Then I find very few patterns in the guest's memory after 3 seconds 5.760 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
After features/support/hooks.rb:339 0.694
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
38.303
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 6.293
And I prepare Tails for memory erasure tests 0.290
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.547
Then I find very few patterns in the guest's memory 2.988 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.730
Then patterns cover at least 75% of the test FS size in the guest's memory 3.280 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.681
Then I find very few patterns in the guest's memory after 3 seconds 5.867 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
# read cache
When I mount the USB drive again 0.169
And I read the content of the test FS 0.691
Then patterns cover at least 99% of the test FS size in the guest's memory 3.430 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.549
Then I find very few patterns in the guest's memory after 3 seconds 5.781 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
After features/support/hooks.rb:339 0.990
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:2.214
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 6.165
And I prepare Tails for memory erasure tests 0.353
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.906
Then I find very few patterns in the guest's memory 2.667 
Pattern coverage: 0.000% (0 MiB out of 1460 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.086
Then patterns cover at least 99% of the test FS size in the guest's memory 2.675 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.467
Then I find very few patterns in the guest's memory after 3 seconds 5.564 
Pattern coverage: 0.000% (0 MiB out of 1460 MiB reference memory)
# read cache
When I mount the USB drive again 4.902
And I read the content of the test FS 0.488
Then patterns cover at least 99% of the test FS size in the guest's memory 2.953 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.420
Then I find very few patterns in the guest's memory after 3 seconds 5.563 
Pattern coverage: 0.000% (0 MiB out of 1460 MiB reference memory)
After features/support/hooks.rb:339 1.027
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
44.798
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 6.478
And I prepare Tails for memory erasure tests 0.439
When I fill a 128 MiB file with a known pattern on the root filesystem 13.195
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.557
Then patterns cover at least 128 MiB in the guest's memory 2.361 
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 20.760 
Pattern coverage: 0.000% (0 MiB out of 1463 MiB reference memory)
After features/support/hooks.rb:339 3.736
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:30.838
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 3:59.681
And I prepare Tails for memory erasure tests 0.274
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.884
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.993 
Pattern coverage: 0.000% (0 MiB out of 1504 MiB reference memory)
After features/support/hooks.rb:339 3.827
After features/support/hooks.rb:108 0.011