Project Number Date
test_Tails_ISO_stable 6334 29 Apr 2026, 13:13

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 7:21.420 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
17.471
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 6.770
And I prepare Tails for memory erasure tests 0.373
When I start a process allocating 128 MiB of memory with a known pattern 1.164
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.146 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.216
Then I find very few patterns in the guest's memory after 5 seconds 6.800 
Pattern coverage: 0.000% (0 MiB out of 1528 MiB reference memory)
After features/support/hooks.rb:331 0.792
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
18.185
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 6.531
And I prepare Tails for memory erasure tests 0.402
And I find very few patterns in the guest's memory 2.276 
Pattern coverage: 0.000% (0 MiB out of 1524 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.655
Then patterns cover at least 99% of the test FS size in the guest's memory 2.147 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.355
Then I find very few patterns in the guest's memory after 3 seconds 4.815 
Pattern coverage: 0.000% (0 MiB out of 1524 MiB reference memory)
After features/support/hooks.rb:331 1.088
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
33.119
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 6.522
And I prepare Tails for memory erasure tests 0.424
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.628
Then I find very few patterns in the guest's memory 2.034 
Pattern coverage: 0.000% (0 MiB out of 1527 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.328
Then patterns cover at least 75% of the test FS size in the guest's memory 2.185 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.720
Then I find very few patterns in the guest's memory after 3 seconds 4.929 
Pattern coverage: 0.000% (0 MiB out of 1527 MiB reference memory)
# read cache
When I mount the USB drive again 0.200
And I read the content of the test FS 0.479
Then patterns cover at least 99% of the test FS size in the guest's memory 2.159 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.453
Then I find very few patterns in the guest's memory after 3 seconds 5.051 
Pattern coverage: 0.000% (0 MiB out of 1527 MiB reference memory)
After features/support/hooks.rb:331 0.706
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
58.262
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 6.662
And I prepare Tails for memory erasure tests 0.368
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.294
Then I find very few patterns in the guest's memory 1.773 
Pattern coverage: 0.000% (0 MiB out of 1528 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.275
Then patterns cover at least 99% of the test FS size in the guest's memory 2.032 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.551
Then I find very few patterns in the guest's memory after 3 seconds 4.812 
Pattern coverage: 0.000% (0 MiB out of 1528 MiB reference memory)
# read cache
When I mount the USB drive again 3.727
And I read the content of the test FS 0.378
Then patterns cover at least 99% of the test FS size in the guest's memory 2.045 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.453
Then I find very few patterns in the guest's memory after 3 seconds 4.886 
Pattern coverage: 0.000% (0 MiB out of 1528 MiB reference memory)
After features/support/hooks.rb:331 1.155
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
44.411
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 6.886
And I prepare Tails for memory erasure tests 0.354
When I fill a 128 MiB file with a known pattern on the root filesystem 12.927
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.998
Then patterns cover at least 128 MiB in the guest's memory 1.656 
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 20.581 
Pattern coverage: 0.000% (0 MiB out of 1524 MiB reference memory)
After features/support/hooks.rb:331 3.633
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:29.970
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 3:57.428
And I prepare Tails for memory erasure tests 0.355
When I fill a 128 MiB file with a known pattern on the persistent filesystem 11.156
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.025 
Pattern coverage: 0.000% (0 MiB out of 1521 MiB reference memory)
After features/support/hooks.rb:331 3.773
After features/support/hooks.rb:100 0.009