Project Number Date
test_Tails_ISO_stable 6044 08 Jan 2026, 18:21

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 7:0.271 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
17.170
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 6.585
And I prepare Tails for memory erasure tests 0.362
When I start a process allocating 128 MiB of memory with a known pattern 1.217
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.087 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.213
Then I find very few patterns in the guest's memory after 5 seconds 6.704 
Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)
After features/support/hooks.rb:331 0.634
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
17.306
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 6.610
And I prepare Tails for memory erasure tests 0.421
And I find very few patterns in the guest's memory 1.704 
Pattern coverage: 0.000% (0 MiB out of 1452 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.342
Then patterns cover at least 99% of the test FS size in the guest's memory 2.023 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.348
Then I find very few patterns in the guest's memory after 3 seconds 4.854 
Pattern coverage: 0.000% (0 MiB out of 1452 MiB reference memory)
After features/support/hooks.rb:331 0.960
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
31.294
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 6.605
And I prepare Tails for memory erasure tests 0.353
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.154
Then I find very few patterns in the guest's memory 1.829 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.084
Then patterns cover at least 75% of the test FS size in the guest's memory 1.998 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.710
Then I find very few patterns in the guest's memory after 3 seconds 4.878 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
# read cache
When I mount the USB drive again 0.134
And I read the content of the test FS 0.405
Then patterns cover at least 99% of the test FS size in the guest's memory 1.966 
Pattern coverage: 100.000% (127 MiB out of 127 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 4.724 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
After features/support/hooks.rb:331 0.946
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
57.204
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 6.566
And I prepare Tails for memory erasure tests 0.429
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.930
Then I find very few patterns in the guest's memory 1.786 
Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.196
Then patterns cover at least 99% of the test FS size in the guest's memory 1.744 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.497
Then I find very few patterns in the guest's memory after 3 seconds 4.727 
Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)
# read cache
When I mount the USB drive again 3.948
And I read the content of the test FS 0.271
Then patterns cover at least 99% of the test FS size in the guest's memory 1.922 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.462
Then I find very few patterns in the guest's memory after 3 seconds 4.720 
Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)
After features/support/hooks.rb:331 0.597
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
42.812
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 6.566
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 11.843
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.050
Then patterns cover at least 128 MiB in the guest's memory 1.528 
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 20.492 
Pattern coverage: 0.000% (0 MiB out of 1462 MiB reference memory)
After features/support/hooks.rb:331 3.767
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:14.482
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 3:41.942
And I prepare Tails for memory erasure tests 0.289
When I fill a 128 MiB file with a known pattern on the persistent filesystem 11.177
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.068 
Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)
After features/support/hooks.rb:331 3.791
After features/support/hooks.rb:100 0.010