Project Number Date
test_Tails_ISO_stable 6130 09 Feb 2026, 18:56

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 12:55.140 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
1:4.326
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 13.035
And I prepare Tails for memory erasure tests 0.368
When I start a process allocating 128 MiB of memory with a known pattern 0.125
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 18.349 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.150
Then I find very few patterns in the guest's memory after 5 seconds 32.296 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:331 0.979
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:39.579
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 7.285
And I prepare Tails for memory erasure tests 0.330
And I find very few patterns in the guest's memory 32.196 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 0.593
Then patterns cover at least 99% of the test FS size in the guest's memory 31.964 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.082
Then I find very few patterns in the guest's memory after 3 seconds 27.126 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
After features/support/hooks.rb:331 0.777
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:38.795
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 7.407
And I prepare Tails for memory erasure tests 0.389
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.759
Then I find very few patterns in the guest's memory 14.043 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.067
Then patterns cover at least 75% of the test FS size in the guest's memory 15.297 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.197
Then I find very few patterns in the guest's memory after 3 seconds 17.823 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
# read cache
When I mount the USB drive again 0.162
And I read the content of the test FS 0.517
Then patterns cover at least 99% of the test FS size in the guest's memory 15.615 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.125
Then I find very few patterns in the guest's memory after 3 seconds 19.387 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
After features/support/hooks.rb:331 0.620
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:50.278
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 7.397
And I prepare Tails for memory erasure tests 0.358
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 26.493
Then I find very few patterns in the guest's memory 12.522 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.225
Then patterns cover at least 99% of the test FS size in the guest's memory 13.539 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.383
Then I find very few patterns in the guest's memory after 3 seconds 16.477 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
# read cache
When I mount the USB drive again 2.145
And I read the content of the test FS 0.350
Then patterns cover at least 99% of the test FS size in the guest's memory 13.203 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.431
Then I find very few patterns in the guest's memory after 3 seconds 15.749 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
After features/support/hooks.rb:331 0.637
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
50.100
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 7.332
And I prepare Tails for memory erasure tests 0.330
When I fill a 128 MiB file with a known pattern on the root filesystem 9.418
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 0.312
Then patterns cover at least 128 MiB in the guest's memory 9.954 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.018
Then I find very few patterns in the guest's memory after 20 seconds 22.733 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:331 3.552
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
5:52.059
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 5:18.623
And I prepare Tails for memory erasure tests 0.354
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.866
When I trigger shutdown 0.011
Then I find very few patterns in the guest's memory after 20 seconds 23.203 
Pattern coverage: 0.000% (0 MiB out of 1544 MiB reference memory)
After features/support/hooks.rb:331 3.954
After features/support/hooks.rb:100 0.015