Project Number Date
test_Tails_ISO_devel 4262 02 Mar 2026, 11:44

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 7:18.942 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
18.515
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 6.680
And I prepare Tails for memory erasure tests 0.440
When I start a process allocating 128 MiB of memory with a known pattern 2.307
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.166 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.172
Then I find very few patterns in the guest's memory after 5 seconds 6.747 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
After features/support/hooks.rb:331 0.756
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
18.959
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 6.746
And I prepare Tails for memory erasure tests 0.355
And I find very few patterns in the guest's memory 2.104 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.033
Then patterns cover at least 99% of the test FS size in the guest's memory 2.189 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.783
Then I find very few patterns in the guest's memory after 3 seconds 4.747 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
After features/support/hooks.rb:331 0.912
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
32.749
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 6.748
And I prepare Tails for memory erasure tests 0.408
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.485
Then I find very few patterns in the guest's memory 2.066 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.487
Then patterns cover at least 75% of the test FS size in the guest's memory 1.980 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.043
Then I find very few patterns in the guest's memory after 3 seconds 4.811 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
# read cache
When I mount the USB drive again 0.183
And I read the content of the test FS 0.375
Then patterns cover at least 99% of the test FS size in the guest's memory 2.063 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.255
Then I find very few patterns in the guest's memory after 3 seconds 4.840 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
After features/support/hooks.rb:331 1.051
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
57.705
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 6.612
And I prepare Tails for memory erasure tests 0.482
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.864
Then I find very few patterns in the guest's memory 1.867 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.104
Then patterns cover at least 99% of the test FS size in the guest's memory 2.016 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.492
Then I find very few patterns in the guest's memory after 3 seconds 4.687 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
# read cache
When I mount the USB drive again 4.026
And I read the content of the test FS 0.375
Then patterns cover at least 99% of the test FS size in the guest's memory 2.153 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.435
Then I find very few patterns in the guest's memory after 3 seconds 4.588 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
After features/support/hooks.rb:331 0.820
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
44.187
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 6.666
And I prepare Tails for memory erasure tests 0.401
When I fill a 128 MiB file with a known pattern on the root filesystem 13.265
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.721
Then patterns cover at least 128 MiB in the guest's memory 1.621 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.504 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
After features/support/hooks.rb:331 3.383
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:26.825
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 3:55.302
And I prepare Tails for memory erasure tests 0.342
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.147
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 21.026 
Pattern coverage: 0.000% (0 MiB out of 1524 MiB reference memory)
After features/support/hooks.rb:331 3.417
After features/support/hooks.rb:100 0.008