Project Number Date
test_Tails_ISO_21472-circumvention-settings-2 6 01 Apr 2026, 02:12

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 6:48.360 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
16.771
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 6.543
And I prepare Tails for memory erasure tests 0.353
When I start a process allocating 128 MiB of memory with a known pattern 1.175
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.926 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.158
Then I find very few patterns in the guest's memory after 5 seconds 6.614 
Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)
After features/support/hooks.rb:331 1.030
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
16.755
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 6.432
And I prepare Tails for memory erasure tests 0.360
And I find very few patterns in the guest's memory 1.776 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.395
Then patterns cover at least 99% of the test FS size in the guest's memory 1.781 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.344
Then I find very few patterns in the guest's memory after 3 seconds 4.665 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
After features/support/hooks.rb:331 1.039
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
30.670
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 6.496
And I prepare Tails for memory erasure tests 0.369
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.081
Then I find very few patterns in the guest's memory 1.778 
Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.180
Then patterns cover at least 75% of the test FS size in the guest's memory 1.847 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.716
Then I find very few patterns in the guest's memory after 3 seconds 4.606 
Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)
# read cache
When I mount the USB drive again 0.153
And I read the content of the test FS 0.392
Then patterns cover at least 99% of the test FS size in the guest's memory 1.856 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.355
Then I find very few patterns in the guest's memory after 3 seconds 4.836 
Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)
After features/support/hooks.rb:331 0.539
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
55.709
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 6.563
And I prepare Tails for memory erasure tests 0.322
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.376
Then I find very few patterns in the guest's memory 1.656 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.162
Then patterns cover at least 99% of the test FS size in the guest's memory 1.788 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.500
Then I find very few patterns in the guest's memory after 3 seconds 4.557 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
# read cache
When I mount the USB drive again 3.870
And I read the content of the test FS 0.270
Then patterns cover at least 99% of the test FS size in the guest's memory 1.696 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.447
Then I find very few patterns in the guest's memory after 3 seconds 4.498 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
After features/support/hooks.rb:331 1.076
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
42.665
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 6.558
And I prepare Tails for memory erasure tests 0.514
When I fill a 128 MiB file with a known pattern on the root filesystem 11.707
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.915
Then patterns cover at least 128 MiB in the guest's memory 1.451 
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 20.513 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
After features/support/hooks.rb:331 3.407
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:5.787
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 3:34.389
And I prepare Tails for memory erasure tests 0.309
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.120
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.962 
Pattern coverage: 0.000% (0 MiB out of 1533 MiB reference memory)
After features/support/hooks.rb:331 3.403
After features/support/hooks.rb:100 0.009