Project Number Date
test_Tails_ISO_devel 4305 30 Mar 2026, 15:13

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 6:54.442 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
17.058
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 6.401
And I prepare Tails for memory erasure tests 0.364
When I start a process allocating 128 MiB of memory with a known pattern 1.161
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.232 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.191
Then I find very few patterns in the guest's memory after 5 seconds 6.706 
Pattern coverage: 0.000% (0 MiB out of 1469 MiB reference memory)
After features/support/hooks.rb:331 0.712
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
16.961
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 6.406
And I prepare Tails for memory erasure tests 0.316
And I find very few patterns in the guest's memory 1.681 
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 1.507
Then patterns cover at least 99% of the test FS size in the guest's memory 1.983 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.271
Then I find very few patterns in the guest's memory after 3 seconds 4.795 
Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)
After features/support/hooks.rb:331 0.778
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
30.520
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 6.440
And I prepare Tails for memory erasure tests 0.307
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.077
Then I find very few patterns in the guest's memory 1.886 
Pattern coverage: 0.000% (0 MiB out of 1462 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.978
Then patterns cover at least 75% of the test FS size in the guest's memory 2.034 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.712
Then I find very few patterns in the guest's memory after 3 seconds 4.710 
Pattern coverage: 0.000% (0 MiB out of 1462 MiB reference memory)
# read cache
When I mount the USB drive again 0.148
And I read the content of the test FS 0.446
Then patterns cover at least 99% of the test FS size in the guest's memory 1.860 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.290
Then I find very few patterns in the guest's memory after 3 seconds 4.627 
Pattern coverage: 0.000% (0 MiB out of 1462 MiB reference memory)
After features/support/hooks.rb:331 0.824
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
53.104
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 6.719
And I prepare Tails for memory erasure tests 0.294
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 26.226
Then I find very few patterns in the guest's memory 1.604 
Pattern coverage: 0.000% (0 MiB out of 1464 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.065
Then patterns cover at least 99% of the test FS size in the guest's memory 1.793 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.550
Then I find very few patterns in the guest's memory after 3 seconds 4.596 
Pattern coverage: 0.000% (0 MiB out of 1464 MiB reference memory)
# read cache
When I mount the USB drive again 3.259
And I read the content of the test FS 0.339
Then patterns cover at least 99% of the test FS size in the guest's memory 1.666 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.468
Then I find very few patterns in the guest's memory after 3 seconds 4.520 
Pattern coverage: 0.000% (0 MiB out of 1464 MiB reference memory)
After features/support/hooks.rb:331 0.688
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
42.235
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 6.439
And I prepare Tails for memory erasure tests 0.303
When I fill a 128 MiB file with a known pattern on the root filesystem 11.878
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.662
Then patterns cover at least 128 MiB in the guest's memory 1.430 
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 20.516 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
After features/support/hooks.rb:331 3.791
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:14.561
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 3:43.609
And I prepare Tails for memory erasure tests 0.320
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.791
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.834 
Pattern coverage: 0.000% (0 MiB out of 1516 MiB reference memory)
After features/support/hooks.rb:331 3.712
After features/support/hooks.rb:100 0.008