Project Number Date
test_Tails_ISO_21756-better-support-build-machine 2 30 Sep 2026, 19:54

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 8:20.911 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
32.107
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 18.216
And I prepare Tails for memory erasure tests 0.324
When I start a process allocating 128 MiB of memory with a known pattern 2.243
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 3.364 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.235
Then I find very few patterns in the guest's memory after 5 seconds 7.722 
Pattern coverage: 0.000% (0 MiB out of 1420 MiB reference memory)
After features/support/hooks.rb:339 0.657
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
34.789
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 18.866
And I prepare Tails for memory erasure tests 0.333
And I find very few patterns in the guest's memory 4.522 
Pattern coverage: 0.000% (0 MiB out of 1422 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.603
Then patterns cover at least 99% of the test FS size in the guest's memory 3.257 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.361
Then I find very few patterns in the guest's memory after 3 seconds 5.843 
Pattern coverage: 0.000% (0 MiB out of 1422 MiB reference memory)
After features/support/hooks.rb:339 0.946
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
39.367
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 7.326
And I prepare Tails for memory erasure tests 0.366
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.575
Then I find very few patterns in the guest's memory 2.914 
Pattern coverage: 0.000% (0 MiB out of 1406 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.484
Then patterns cover at least 75% of the test FS size in the guest's memory 3.130 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.861
Then I find very few patterns in the guest's memory after 3 seconds 6.234 
Pattern coverage: 0.000% (0 MiB out of 1406 MiB reference memory)
# read cache
When I mount the USB drive again 0.240
And I read the content of the test FS 0.693
Then patterns cover at least 99% of the test FS size in the guest's memory 3.376 
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 5.714 
Pattern coverage: 0.000% (0 MiB out of 1406 MiB reference memory)
After features/support/hooks.rb:339 0.930
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:10.229
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 18.709
And I prepare Tails for memory erasure tests 0.336
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 23.774
Then I find very few patterns in the guest's memory 4.713 
Pattern coverage: 0.000% (0 MiB out of 1422 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.319
Then patterns cover at least 99% of the test FS size in the guest's memory 2.943 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.459
Then I find very few patterns in the guest's memory after 3 seconds 5.466 
Pattern coverage: 0.000% (0 MiB out of 1422 MiB reference memory)
# read cache
When I mount the USB drive again 3.144
And I read the content of the test FS 0.377
Then patterns cover at least 99% of the test FS size in the guest's memory 2.757 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.414
Then I find very few patterns in the guest's memory after 3 seconds 5.810 
Pattern coverage: 0.000% (0 MiB out of 1422 MiB reference memory)
After features/support/hooks.rb:339 0.593
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
45.003
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.710
And I prepare Tails for memory erasure tests 0.397
When I fill a 128 MiB file with a known pattern on the root filesystem 13.213
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.505
Then patterns cover at least 128 MiB in the guest's memory 2.274 
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 20.894 
Pattern coverage: 0.000% (0 MiB out of 1405 MiB reference memory)
After features/support/hooks.rb:339 3.567
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:39.414
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:7.180
And I prepare Tails for memory erasure tests 0.376
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.774
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.078 
Pattern coverage: 0.000% (0 MiB out of 1436 MiB reference memory)
After features/support/hooks.rb:339 3.804
After features/support/hooks.rb:108 0.010