Project Number Date
test_Tails_ISO_stable 6236 26 Mar 2026, 07:02

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 6:56.938 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
17.126
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.652
And I prepare Tails for memory erasure tests 0.324
When I start a process allocating 128 MiB of memory with a known pattern 1.207
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.980 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.186
Then I find very few patterns in the guest's memory after 5 seconds 6.775 
Pattern coverage: 0.000% (0 MiB out of 1500 MiB reference memory)
After features/support/hooks.rb:331 0.595
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
17.267
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 6.728
And I prepare Tails for memory erasure tests 0.341
And I find very few patterns in the guest's memory 1.811 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.477
Then patterns cover at least 99% of the test FS size in the guest's memory 1.889 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.315
Then I find very few patterns in the guest's memory after 3 seconds 4.702 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
After features/support/hooks.rb:331 0.969
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
31.447
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.520
And I prepare Tails for memory erasure tests 0.335
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.263
Then I find very few patterns in the guest's memory 1.737 
Pattern coverage: 0.000% (0 MiB out of 1508 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.004
Then patterns cover at least 75% of the test FS size in the guest's memory 2.064 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.729
Then I find very few patterns in the guest's memory after 3 seconds 5.060 
Pattern coverage: 0.000% (0 MiB out of 1508 MiB reference memory)
# read cache
When I mount the USB drive again 0.147
And I read the content of the test FS 0.471
Then patterns cover at least 99% of the test FS size in the guest's memory 1.952 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.424
Then I find very few patterns in the guest's memory after 3 seconds 4.735 
Pattern coverage: 0.000% (0 MiB out of 1508 MiB reference memory)
After features/support/hooks.rb:331 0.772
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
55.853
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.452
And I prepare Tails for memory erasure tests 0.359
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.463
Then I find very few patterns in the guest's memory 1.845 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.082
Then patterns cover at least 99% of the test FS size in the guest's memory 1.926 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.487
Then I find very few patterns in the guest's memory after 3 seconds 4.553 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
# read cache
When I mount the USB drive again 3.616
And I read the content of the test FS 0.319
Then patterns cover at least 99% of the test FS size in the guest's memory 1.744 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.389
Then I find very few patterns in the guest's memory after 3 seconds 4.611 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
After features/support/hooks.rb:331 0.905
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
42.978
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.550
And I prepare Tails for memory erasure tests 0.335
When I fill a 128 MiB file with a known pattern on the root filesystem 12.085
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.047
Then patterns cover at least 128 MiB in the guest's memory 1.466 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.487 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
After features/support/hooks.rb:331 3.585
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:12.264
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:40.755
And I prepare Tails for memory erasure tests 0.295
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.295
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.913 
Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)
After features/support/hooks.rb:331 3.438
After features/support/hooks.rb:100 0.012