Project Number Date
test_Tails_ISO_devel 4105 07 Dec 2025, 09:55

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 14:46.708 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
48.844
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 9.971
And I prepare Tails for memory erasure tests 0.380
When I start a process allocating 128 MiB of memory with a known pattern 2.380
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 15.851 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.834
Then I find very few patterns in the guest's memory after 5 seconds 19.426 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
After features/support/hooks.rb:331 1.349
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
58.959
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 8.744
And I prepare Tails for memory erasure tests 0.413
And I find very few patterns in the guest's memory 14.230 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.793
Then patterns cover at least 99% of the test FS size in the guest's memory 15.134 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.501
Then I find very few patterns in the guest's memory after 3 seconds 18.140 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
After features/support/hooks.rb:331 1.218
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
3:9.676
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.007
Given I have started Tails from DVD without network and logged in 8.705
And I prepare Tails for memory erasure tests 0.412
When I plug and mount a 128 MiB USB drive with a vfat filesystem 7.266
Then I find very few patterns in the guest's memory 16.002 
Pattern coverage: 0.000% (0 MiB out of 1469 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 3.103
Then patterns cover at least 75% of the test FS size in the guest's memory 36.034 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.730
Then I find very few patterns in the guest's memory after 3 seconds 45.088 
Pattern coverage: 0.000% (0 MiB out of 1469 MiB reference memory)
# read cache
When I mount the USB drive again 0.197
And I read the content of the test FS 0.822
Then patterns cover at least 99% of the test FS size in the guest's memory 34.959 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.494
Then I find very few patterns in the guest's memory after 3 seconds 34.858 
Pattern coverage: 0.000% (0 MiB out of 1469 MiB reference memory)
After features/support/hooks.rb:331 1.218
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:16.464
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 10.547
And I prepare Tails for memory erasure tests 0.478
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 37.070
Then I find very few patterns in the guest's memory 18.560 
Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.649
Then patterns cover at least 99% of the test FS size in the guest's memory 15.578 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.835
Then I find very few patterns in the guest's memory after 3 seconds 15.190 
Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)
# read cache
When I mount the USB drive again 5.893
And I read the content of the test FS 0.602
Then patterns cover at least 99% of the test FS size in the guest's memory 13.102 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.598
Then I find very few patterns in the guest's memory after 3 seconds 16.357 
Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)
After features/support/hooks.rb:331 1.178
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
59.814
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 9.607
And I prepare Tails for memory erasure tests 0.517
When I fill a 128 MiB file with a known pattern on the root filesystem 11.129
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 3.437
Then patterns cover at least 128 MiB in the guest's memory 12.181 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 22.927 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
After features/support/hooks.rb:331 4.266
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
6:32.950
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 5:59.535
And I prepare Tails for memory erasure tests 0.581
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.272
When I trigger shutdown 0.014
Then I find very few patterns in the guest's memory after 20 seconds 23.546 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
After features/support/hooks.rb:331 3.775
After features/support/hooks.rb:100 0.020