Project Number Date
test_Tails_ISO_devel 4461 19 Jun 2026, 11:33

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 7:47.584 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
17.697
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.019
Given I have started Tails from DVD without network and logged in 7.017
And I prepare Tails for memory erasure tests 0.412
When I start a process allocating 128 MiB of memory with a known pattern 1.166
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.148 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.166
Then I find very few patterns in the guest's memory after 5 seconds 6.786 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
After features/support/hooks.rb:339 1.031
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
18.286
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.020
Given I have started Tails from DVD without network and logged in 6.856
And I prepare Tails for memory erasure tests 0.678
And I find very few patterns in the guest's memory 1.908 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.652
Then patterns cover at least 99% of the test FS size in the guest's memory 2.057 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.359
Then I find very few patterns in the guest's memory after 3 seconds 4.773 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
After features/support/hooks.rb:339 0.945
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
33.343
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.018
Given I have started Tails from DVD without network and logged in 6.935
And I prepare Tails for memory erasure tests 0.454
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.634
Then I find very few patterns in the guest's memory 1.903 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.545
Then patterns cover at least 75% of the test FS size in the guest's memory 2.079 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.679
Then I find very few patterns in the guest's memory after 3 seconds 4.879 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
# read cache
When I mount the USB drive again 0.166
And I read the content of the test FS 0.428
Then patterns cover at least 99% of the test FS size in the guest's memory 2.328 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.429
Then I find very few patterns in the guest's memory after 3 seconds 4.879 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
After features/support/hooks.rb:339 0.873
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
55.794
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.018
Given I have started Tails from DVD without network and logged in 7.135
And I prepare Tails for memory erasure tests 0.368
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 27.373
Then I find very few patterns in the guest's memory 1.799 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.507
Then patterns cover at least 99% of the test FS size in the guest's memory 1.857 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.569
Then I find very few patterns in the guest's memory after 3 seconds 4.578 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
# read cache
When I mount the USB drive again 3.218
And I read the content of the test FS 0.297
Then patterns cover at least 99% of the test FS size in the guest's memory 1.932 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.443
Then I find very few patterns in the guest's memory after 3 seconds 4.711 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
After features/support/hooks.rb:339 0.979
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
57.462
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.017
Given I have started Tails from DVD without network and logged in 7.283
And I prepare Tails for memory erasure tests 0.361
When I fill a 128 MiB file with a known pattern on the root filesystem 25.937
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.697
Then patterns cover at least 128 MiB in the guest's memory 1.588 
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 20.587 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
After features/support/hooks.rb:339 3.658
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:44.999
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.036
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:7.542
And I prepare Tails for memory erasure tests 0.331
When I fill a 128 MiB file with a known pattern on the persistent filesystem 16.142
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.976 
Pattern coverage: 0.000% (0 MiB out of 1526 MiB reference memory)
After features/support/hooks.rb:339 3.797
After features/support/hooks.rb:108 0.040