Project Number Date
test_Tails_ISO_stable 6316 21 Apr 2026, 16:17

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 7:43.937 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
19.388
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 6.719
And I prepare Tails for memory erasure tests 0.413
When I start a process allocating 128 MiB of memory with a known pattern 2.420
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.422 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.282
Then I find very few patterns in the guest's memory after 5 seconds 7.130 
Pattern coverage: 0.000% (0 MiB out of 1505 MiB reference memory)
After features/support/hooks.rb:331 0.899
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
20.296
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.004
Given I have started Tails from DVD without network and logged in 6.863
And I prepare Tails for memory erasure tests 0.395
And I find very few patterns in the guest's memory 2.882 
Pattern coverage: 0.000% (0 MiB out of 1503 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.712
Then patterns cover at least 99% of the test FS size in the guest's memory 2.403 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 1.177
Then I find very few patterns in the guest's memory after 3 seconds 4.861 
Pattern coverage: 0.000% (0 MiB out of 1503 MiB reference memory)
After features/support/hooks.rb:331 1.036
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
38.289
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 6.821
And I prepare Tails for memory erasure tests 0.644
When I plug and mount a 128 MiB USB drive with a vfat filesystem 7.958
Then I find very few patterns in the guest's memory 2.279 
Pattern coverage: 0.000% (0 MiB out of 1507 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.479
Then patterns cover at least 75% of the test FS size in the guest's memory 2.236 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.830
Then I find very few patterns in the guest's memory after 3 seconds 5.772 
Pattern coverage: 0.000% (0 MiB out of 1507 MiB reference memory)
# read cache
When I mount the USB drive again 0.222
And I read the content of the test FS 0.603
Then patterns cover at least 99% of the test FS size in the guest's memory 2.882 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.465
Then I find very few patterns in the guest's memory after 3 seconds 5.092 
Pattern coverage: 0.000% (0 MiB out of 1507 MiB reference memory)
After features/support/hooks.rb:331 1.074
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:3.478
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 6.815
And I prepare Tails for memory erasure tests 0.661
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 31.774
Then I find very few patterns in the guest's memory 1.804 
Pattern coverage: 0.000% (0 MiB out of 1505 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.443
Then patterns cover at least 99% of the test FS size in the guest's memory 2.143 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.688
Then I find very few patterns in the guest's memory after 3 seconds 5.404 
Pattern coverage: 0.000% (0 MiB out of 1505 MiB reference memory)
# read cache
When I mount the USB drive again 4.927
And I read the content of the test FS 0.421
Then patterns cover at least 99% of the test FS size in the guest's memory 2.053 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.448
Then I find very few patterns in the guest's memory after 3 seconds 4.890 
Pattern coverage: 0.000% (0 MiB out of 1505 MiB reference memory)
After features/support/hooks.rb:331 0.888
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
49.601
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 6.931
And I prepare Tails for memory erasure tests 0.529
When I fill a 128 MiB file with a known pattern on the root filesystem 13.149
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 6.667
Then patterns cover at least 128 MiB in the guest's memory 1.698 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.007
Then I find very few patterns in the guest's memory after 20 seconds 20.618 
Pattern coverage: 0.000% (0 MiB out of 1507 MiB reference memory)
After features/support/hooks.rb:331 3.551
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:32.882
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:59.649
And I prepare Tails for memory erasure tests 0.545
When I fill a 128 MiB file with a known pattern on the persistent filesystem 11.246
When I trigger shutdown 0.007
Then I find very few patterns in the guest's memory after 20 seconds 21.434 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
After features/support/hooks.rb:331 3.482
After features/support/hooks.rb:100 0.010