Project Number Date
test_Tails_ISO_stable 6075 17 Jan 2026, 11:40

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 7:1.556 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
17.812
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 6.473
And I prepare Tails for memory erasure tests 0.297
When I start a process allocating 128 MiB of memory with a known pattern 2.177
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.932 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.184
Then I find very few patterns in the guest's memory after 5 seconds 6.746 
Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)
After features/support/hooks.rb:331 0.886
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
18.090
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 6.535
And I prepare Tails for memory erasure tests 0.299
And I find very few patterns in the guest's memory 1.750 
Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.067
Then patterns cover at least 99% of the test FS size in the guest's memory 1.942 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.718
Then I find very few patterns in the guest's memory after 3 seconds 4.777 
Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)
After features/support/hooks.rb:331 0.624
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
31.410
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 6.523
And I prepare Tails for memory erasure tests 0.308
When I plug and mount a 128 MiB USB drive with a vfat filesystem 4.990
Then I find very few patterns in the guest's memory 1.699 
Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.585
Then patterns cover at least 75% of the test FS size in the guest's memory 2.073 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.014
Then I find very few patterns in the guest's memory after 3 seconds 4.799 
Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)
# read cache
When I mount the USB drive again 0.226
And I read the content of the test FS 0.369
Then patterns cover at least 99% of the test FS size in the guest's memory 1.938 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.257
Then I find very few patterns in the guest's memory after 3 seconds 4.621 
Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)
After features/support/hooks.rb:331 0.809
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
55.052
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 0.334
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 27.716
Then I find very few patterns in the guest's memory 1.611 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 0.995
Then patterns cover at least 99% of the test FS size in the guest's memory 1.692 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.461
Then I find very few patterns in the guest's memory after 3 seconds 4.656 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
# read cache
When I mount the USB drive again 4.152
And I read the content of the test FS 0.266
Then patterns cover at least 99% of the test FS size in the guest's memory 1.833 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.376
Then I find very few patterns in the guest's memory after 3 seconds 4.515 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
After features/support/hooks.rb:331 0.670
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
43.310
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 6.450
And I prepare Tails for memory erasure tests 0.325
When I fill a 128 MiB file with a known pattern on the root filesystem 12.996
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.651
Then patterns cover at least 128 MiB in the guest's memory 1.419 
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 20.461 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
After features/support/hooks.rb:331 3.730
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:15.880
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 3:44.615
And I prepare Tails for memory erasure tests 0.291
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.095
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.873 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
After features/support/hooks.rb:331 3.743
After features/support/hooks.rb:100 0.008