Project Number Date
test_Tails_ISO_stable 5939 09 Nov 2025, 12:06

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 14:11.408 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
46.292
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 8.577
And I prepare Tails for memory erasure tests 0.414
When I start a process allocating 128 MiB of memory with a known pattern 2.304
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 14.994 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.904
Then I find very few patterns in the guest's memory after 5 seconds 19.096 
Pattern coverage: 0.000% (0 MiB out of 1496 MiB reference memory)
After features/support/hooks.rb:331 1.098
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
58.235
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 8.480
And I prepare Tails for memory erasure tests 0.478
And I find very few patterns in the guest's memory 15.171 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.610
Then patterns cover at least 99% of the test FS size in the guest's memory 14.914 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.372
Then I find very few patterns in the guest's memory after 3 seconds 17.207 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
After features/support/hooks.rb:331 2.046
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:54.545
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 9.455
And I prepare Tails for memory erasure tests 0.428
When I plug and mount a 128 MiB USB drive with a vfat filesystem 8.545
Then I find very few patterns in the guest's memory 14.352 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.486
Then patterns cover at least 75% of the test FS size in the guest's memory 16.034 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.900
Then I find very few patterns in the guest's memory after 3 seconds 18.051 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
# read cache
When I mount the USB drive again 0.400
And I read the content of the test FS 0.794
Then patterns cover at least 99% of the test FS size in the guest's memory 15.176 
Pattern coverage: 100.000% (127 MiB out of 127 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 27.469 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
After features/support/hooks.rb:331 0.901
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:18.295
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 15.343
And I prepare Tails for memory erasure tests 0.458
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 33.771
Then I find very few patterns in the guest's memory 12.981 
Pattern coverage: 0.000% (0 MiB out of 1516 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.767
Then patterns cover at least 99% of the test FS size in the guest's memory 13.560 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.802
Then I find very few patterns in the guest's memory after 3 seconds 16.899 
Pattern coverage: 0.000% (0 MiB out of 1516 MiB reference memory)
# read cache
When I mount the USB drive again 5.029
And I read the content of the test FS 1.244
Then patterns cover at least 99% of the test FS size in the guest's memory 19.407 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.606
Then I find very few patterns in the guest's memory after 3 seconds 16.423 
Pattern coverage: 0.000% (0 MiB out of 1516 MiB reference memory)
After features/support/hooks.rb:331 0.939
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
57.015
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.006
Given I have started Tails from DVD without network and logged in 8.671
And I prepare Tails for memory erasure tests 0.465
When I fill a 128 MiB file with a known pattern on the root filesystem 11.164
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.695
Then patterns cover at least 128 MiB in the guest's memory 10.864 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.123
Then I find very few patterns in the guest's memory after 20 seconds 23.030 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
After features/support/hooks.rb:331 3.777
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
7:17.023
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:31.844
And I prepare Tails for memory erasure tests 0.379
When I fill a 128 MiB file with a known pattern on the persistent filesystem 17.254
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 27.532 
Pattern coverage: 0.000% (0 MiB out of 1456 MiB reference memory)
After features/support/hooks.rb:331 3.659
After features/support/hooks.rb:100 0.015