Project Number Date
test_Tails_ISO_stable 6684 20 Sep 2026, 11:28

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 7:23.062 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
19.349
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 0.263
When I start a process allocating 128 MiB of memory with a known pattern 2.165
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.906 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.172
Then I find very few patterns in the guest's memory after 5 seconds 7.676 
Pattern coverage: 0.000% (0 MiB out of 1399 MiB reference memory)
After features/support/hooks.rb:339 0.849
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
19.115
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.001
Given I have started Tails from DVD without network and logged in 6.210
And I prepare Tails for memory erasure tests 0.263
And I find very few patterns in the guest's memory 2.718 
Pattern coverage: 0.000% (0 MiB out of 1417 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.336
Then patterns cover at least 99% of the test FS size in the guest's memory 2.581 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.305
Then I find very few patterns in the guest's memory after 3 seconds 5.699 
Pattern coverage: 0.000% (0 MiB out of 1417 MiB reference memory)
After features/support/hooks.rb:339 0.558
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
43.738
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.001
Given I have started Tails from DVD without network and logged in 6.128
And I prepare Tails for memory erasure tests 0.246
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.019
Then I find very few patterns in the guest's memory 2.717 
Pattern coverage: 0.000% (0 MiB out of 1407 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.425
Then patterns cover at least 75% of the test FS size in the guest's memory 4.556 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.614
Then I find very few patterns in the guest's memory after 3 seconds 7.883 
Pattern coverage: 0.000% (0 MiB out of 1407 MiB reference memory)
# read cache
When I mount the USB drive again 0.146
And I read the content of the test FS 0.596
Then patterns cover at least 99% of the test FS size in the guest's memory 5.226 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.398
Then I find very few patterns in the guest's memory after 3 seconds 7.779 
Pattern coverage: 0.000% (0 MiB out of 1407 MiB reference memory)
After features/support/hooks.rb:339 0.998
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
59.304
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 6.153
And I prepare Tails for memory erasure tests 0.286
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.226
Then I find very few patterns in the guest's memory 2.745 
Pattern coverage: 0.000% (0 MiB out of 1414 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.100
Then patterns cover at least 99% of the test FS size in the guest's memory 2.607 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.465
Then I find very few patterns in the guest's memory after 3 seconds 5.447 
Pattern coverage: 0.000% (0 MiB out of 1414 MiB reference memory)
# read cache
When I mount the USB drive again 3.630
And I read the content of the test FS 0.348
Then patterns cover at least 99% of the test FS size in the guest's memory 2.633 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.397
Then I find very few patterns in the guest's memory after 3 seconds 5.260 
Pattern coverage: 0.000% (0 MiB out of 1414 MiB reference memory)
After features/support/hooks.rb:339 0.920
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
43.033
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 6.185
And I prepare Tails for memory erasure tests 0.267
When I fill a 128 MiB file with a known pattern on the root filesystem 12.221
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.422
Then patterns cover at least 128 MiB in the guest's memory 2.177 
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 20.754 
Pattern coverage: 0.000% (0 MiB out of 1396 MiB reference memory)
After features/support/hooks.rb:339 3.499
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:18.521
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 3:47.664
And I prepare Tails for memory erasure tests 0.298
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.485
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.068 
Pattern coverage: 0.000% (0 MiB out of 1445 MiB reference memory)
After features/support/hooks.rb:339 3.609
After features/support/hooks.rb:108 0.009