Project Number Date
test_Tails_ISO_stable 6460 18 Jun 2026, 07:34

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 7:48.101 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
17.735
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.016
Given I have started Tails from DVD without network and logged in 7.020
And I prepare Tails for memory erasure tests 0.382
When I start a process allocating 128 MiB of memory with a known pattern 1.167
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.045 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.191
Then I find very few patterns in the guest's memory after 5 seconds 6.926 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
After features/support/hooks.rb:339 1.269
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
17.761
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.016
Given I have started Tails from DVD without network and logged in 6.973
And I prepare Tails for memory erasure tests 0.388
And I find very few patterns in the guest's memory 1.698 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.514
Then patterns cover at least 99% of the test FS size in the guest's memory 1.897 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.328
Then I find very few patterns in the guest's memory after 3 seconds 4.959 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
After features/support/hooks.rb:339 1.042
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
32.995
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.027
Given I have started Tails from DVD without network and logged in 7.219
And I prepare Tails for memory erasure tests 0.433
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.263
Then I find very few patterns in the guest's memory 1.807 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.672
Then patterns cover at least 75% of the test FS size in the guest's memory 2.029 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.727
Then I find very few patterns in the guest's memory after 3 seconds 4.792 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
# read cache
When I mount the USB drive again 0.203
And I read the content of the test FS 0.591
Then patterns cover at least 99% of the test FS size in the guest's memory 2.041 
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 4.783 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
After features/support/hooks.rb:339 0.778
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
59.945
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 7.026
And I prepare Tails for memory erasure tests 0.446
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 31.235
Then I find very few patterns in the guest's memory 1.788 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.332
Then patterns cover at least 99% of the test FS size in the guest's memory 1.946 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.530
Then I find very few patterns in the guest's memory after 3 seconds 4.579 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
# read cache
When I mount the USB drive again 3.827
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 1.795 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.449
Then I find very few patterns in the guest's memory after 3 seconds 4.689 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
After features/support/hooks.rb:339 1.091
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
57.199
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 7.055
And I prepare Tails for memory erasure tests 0.502
When I fill a 128 MiB file with a known pattern on the root filesystem 25.157
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.361
Then patterns cover at least 128 MiB in the guest's memory 1.526 
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 20.589 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:339 3.386
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:42.465
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.023
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:1.688
And I prepare Tails for memory erasure tests 0.462
When I fill a 128 MiB file with a known pattern on the persistent filesystem 19.304
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.004 
Pattern coverage: 0.000% (0 MiB out of 1522 MiB reference memory)
After features/support/hooks.rb:339 3.776
After features/support/hooks.rb:108 0.032