Project Number Date
test_Tails_ISO_devel 4135 23 Dec 2025, 11:35

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 12:23.566 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
42.190
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 7.592
And I prepare Tails for memory erasure tests 0.326
When I start a process allocating 128 MiB of memory with a known pattern 1.169
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 14.432 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.158
Then I find very few patterns in the guest's memory after 5 seconds 18.511 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:331 0.658
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
58.529
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 7.863
And I prepare Tails for memory erasure tests 0.379
And I find very few patterns in the guest's memory 18.127 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 0.594
Then patterns cover at least 99% of the test FS size in the guest's memory 14.891 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.072
Then I find very few patterns in the guest's memory after 3 seconds 16.599 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:331 0.835
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:42.182
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 7.606
And I prepare Tails for memory erasure tests 0.350
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.388
Then I find very few patterns in the guest's memory 13.965 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.137
Then patterns cover at least 75% of the test FS size in the guest's memory 15.384 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.244
Then I find very few patterns in the guest's memory after 3 seconds 17.571 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
# read cache
When I mount the USB drive again 0.164
And I read the content of the test FS 0.508
Then patterns cover at least 99% of the test FS size in the guest's memory 18.392 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.130
Then I find very few patterns in the guest's memory after 3 seconds 20.338 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
After features/support/hooks.rb:331 0.783
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:15.003
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 7.604
And I prepare Tails for memory erasure tests 0.319
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 30.081
Then I find very few patterns in the guest's memory 19.294 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.546
Then patterns cover at least 99% of the test FS size in the guest's memory 17.432 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.402
Then I find very few patterns in the guest's memory after 3 seconds 24.510 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
# read cache
When I mount the USB drive again 2.498
And I read the content of the test FS 0.357
Then patterns cover at least 99% of the test FS size in the guest's memory 13.531 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.299
Then I find very few patterns in the guest's memory after 3 seconds 17.124 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
After features/support/hooks.rb:331 0.972
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
50.086
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 7.687
And I prepare Tails for memory erasure tests 0.400
When I fill a 128 MiB file with a known pattern on the root filesystem 8.899
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 0.345
Then patterns cover at least 128 MiB in the guest's memory 9.791 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.037
Then I find very few patterns in the guest's memory after 20 seconds 22.924 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
After features/support/hooks.rb:331 3.619
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
5:55.573
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 5:23.373
And I prepare Tails for memory erasure tests 0.403
When I fill a 128 MiB file with a known pattern on the persistent filesystem 8.501
When I trigger shutdown 0.011
Then I find very few patterns in the guest's memory after 20 seconds 23.283 
Pattern coverage: 0.000% (0 MiB out of 1519 MiB reference memory)
After features/support/hooks.rb:331 4.014
After features/support/hooks.rb:100 0.017