Project Number Date
test_Tails_ISO_devel 4556 18 Aug 2026, 11:13

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 7:39.081 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
19.780
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 6.364
And I prepare Tails for memory erasure tests 0.301
When I start a process allocating 128 MiB of memory with a known pattern 2.174
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.908 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.208
Then I find very few patterns in the guest's memory after 5 seconds 7.822 
Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)
After features/support/hooks.rb:339 0.913
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
19.880
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 6.386
And I prepare Tails for memory erasure tests 0.309
And I find very few patterns in the guest's memory 2.583 
Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.527
Then patterns cover at least 99% of the test FS size in the guest's memory 2.880 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.349
Then I find very few patterns in the guest's memory after 3 seconds 5.842 
Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)
After features/support/hooks.rb:339 0.832
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
37.173
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 6.383
And I prepare Tails for memory erasure tests 0.318
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.192
Then I find very few patterns in the guest's memory 2.719 
Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.787
Then patterns cover at least 75% of the test FS size in the guest's memory 3.224 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.709
Then I find very few patterns in the guest's memory after 3 seconds 5.601 
Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)
# read cache
When I mount the USB drive again 0.185
And I read the content of the test FS 0.583
Then patterns cover at least 99% of the test FS size in the guest's memory 3.045 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.423
Then I find very few patterns in the guest's memory after 3 seconds 5.998 
Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)
After features/support/hooks.rb:339 0.541
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:2.645
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 6.238
And I prepare Tails for memory erasure tests 0.329
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 30.683
Then I find very few patterns in the guest's memory 2.601 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.149
Then patterns cover at least 99% of the test FS size in the guest's memory 2.763 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.492
Then I find very few patterns in the guest's memory after 3 seconds 5.476 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
# read cache
When I mount the USB drive again 3.767
And I read the content of the test FS 0.325
Then patterns cover at least 99% of the test FS size in the guest's memory 2.685 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.436
Then I find very few patterns in the guest's memory after 3 seconds 5.696 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
After features/support/hooks.rb:339 0.587
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
44.062
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 6.331
And I prepare Tails for memory erasure tests 0.337
When I fill a 128 MiB file with a known pattern on the root filesystem 12.842
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.521
Then patterns cover at least 128 MiB in the guest's memory 2.198 
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 20.823 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
After features/support/hooks.rb:339 3.486
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:35.539
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 4:3.849
And I prepare Tails for memory erasure tests 0.325
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.270
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.089 
Pattern coverage: 0.000% (0 MiB out of 1455 MiB reference memory)
After features/support/hooks.rb:339 3.683
After features/support/hooks.rb:108 0.009