Project Number Date
test_Tails_ISO_devel 4443 11 Jun 2026, 15:00

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 8:7.830 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
18.540
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.024
Given I have started Tails from DVD without network and logged in 7.350
And I prepare Tails for memory erasure tests 0.549
When I start a process allocating 128 MiB of memory with a known pattern 1.361
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.217 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.241
Then I find very few patterns in the guest's memory after 5 seconds 6.820 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
After features/support/hooks.rb:339 0.659
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
20.128
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.024
Given I have started Tails from DVD without network and logged in 7.035
And I prepare Tails for memory erasure tests 0.414
And I find very few patterns in the guest's memory 3.220 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.929
Then patterns cover at least 99% of the test FS size in the guest's memory 2.394 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.310
Then I find very few patterns in the guest's memory after 3 seconds 4.823 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
After features/support/hooks.rb:339 0.633
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
34.829
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.027
Given I have started Tails from DVD without network and logged in 7.325
And I prepare Tails for memory erasure tests 0.583
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.647
Then I find very few patterns in the guest's memory 2.323 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.518
Then patterns cover at least 75% of the test FS size in the guest's memory 2.072 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.670
Then I find very few patterns in the guest's memory after 3 seconds 5.102 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
# read cache
When I mount the USB drive again 0.161
And I read the content of the test FS 0.410
Then patterns cover at least 99% of the test FS size in the guest's memory 2.637 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.331
Then I find very few patterns in the guest's memory after 3 seconds 5.045 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
After features/support/hooks.rb:339 0.942
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
54.946
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.022
Given I have started Tails from DVD without network and logged in 7.646
And I prepare Tails for memory erasure tests 0.434
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 23.711
Then I find very few patterns in the guest's memory 2.460 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.836
Then patterns cover at least 99% of the test FS size in the guest's memory 2.569 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.565
Then I find very few patterns in the guest's memory after 3 seconds 4.633 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
# read cache
When I mount the USB drive again 3.507
And I read the content of the test FS 0.301
Then patterns cover at least 99% of the test FS size in the guest's memory 1.994 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.443
Then I find very few patterns in the guest's memory after 3 seconds 4.841 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
After features/support/hooks.rb:339 0.863
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:0.671
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.022
Given I have started Tails from DVD without network and logged in 7.832
And I prepare Tails for memory erasure tests 0.387
When I fill a 128 MiB file with a known pattern on the root filesystem 27.032
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.661
Then patterns cover at least 128 MiB in the guest's memory 1.700 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.014
Then I find very few patterns in the guest's memory after 20 seconds 21.042 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
After features/support/hooks.rb:339 3.486
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:58.713
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.026
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:16.818
And I prepare Tails for memory erasure tests 0.432
When I fill a 128 MiB file with a known pattern on the persistent filesystem 20.385
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.070 
Pattern coverage: 0.000% (0 MiB out of 1529 MiB reference memory)
After features/support/hooks.rb:339 3.554
After features/support/hooks.rb:108 0.068