Project Number Date
test_Tails_ISO_stable 6007 14 Dec 2025, 12:48

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 13:21.079 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
47.090
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 9.039
And I prepare Tails for memory erasure tests 0.444
When I start a process allocating 128 MiB of memory with a known pattern 2.314
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 15.731 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.187
Then I find very few patterns in the guest's memory after 5 seconds 19.373 
Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)
After features/support/hooks.rb:331 0.965
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:1.075
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 8.969
And I prepare Tails for memory erasure tests 0.493
And I find very few patterns in the guest's memory 15.001 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.750
Then patterns cover at least 99% of the test FS size in the guest's memory 15.269 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.634
Then I find very few patterns in the guest's memory after 3 seconds 17.957 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
After features/support/hooks.rb:331 1.049
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:51.031
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 9.424
And I prepare Tails for memory erasure tests 0.417
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.718
Then I find very few patterns in the guest's memory 17.521 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.496
Then patterns cover at least 75% of the test FS size in the guest's memory 16.451 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.908
Then I find very few patterns in the guest's memory after 3 seconds 23.038 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
# read cache
When I mount the USB drive again 0.221
And I read the content of the test FS 0.701
Then patterns cover at least 99% of the test FS size in the guest's memory 15.979 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.498
Then I find very few patterns in the guest's memory after 3 seconds 16.654 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
After features/support/hooks.rb:331 1.165
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:4.523
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 8.505
And I prepare Tails for memory erasure tests 0.389
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 30.716
Then I find very few patterns in the guest's memory 15.164 
Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.900
Then patterns cover at least 99% of the test FS size in the guest's memory 13.756 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 1.124
Then I find very few patterns in the guest's memory after 3 seconds 15.808 
Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)
# read cache
When I mount the USB drive again 5.515
And I read the content of the test FS 0.663
Then patterns cover at least 99% of the test FS size in the guest's memory 13.465 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.742
Then I find very few patterns in the guest's memory after 3 seconds 16.772 
Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)
After features/support/hooks.rb:331 1.482
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
57.420
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 8.864
And I prepare Tails for memory erasure tests 0.415
When I fill a 128 MiB file with a known pattern on the root filesystem 10.766
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.827
Then patterns cover at least 128 MiB in the guest's memory 11.422 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.009
Then I find very few patterns in the guest's memory after 20 seconds 23.113 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
After features/support/hooks.rb:331 3.818
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
6:39.937
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 6:5.000
And I prepare Tails for memory erasure tests 0.470
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.155
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 24.297 
Pattern coverage: 0.000% (0 MiB out of 1514 MiB reference memory)
After features/support/hooks.rb:331 3.757
After features/support/hooks.rb:100 0.020