Project Number Date
test_Tails_ISO_stable 6230 25 Mar 2026, 11:23

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 7:32.780 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
20.072
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.587
And I prepare Tails for memory erasure tests 0.333
When I start a process allocating 128 MiB of memory with a known pattern 3.675
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.128 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.373
Then I find very few patterns in the guest's memory after 5 seconds 6.974 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
After features/support/hooks.rb:331 0.922
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
17.848
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 6.654
And I prepare Tails for memory erasure tests 0.433
And I find very few patterns in the guest's memory 1.850 
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 1.558
Then patterns cover at least 99% of the test FS size in the guest's memory 2.186 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.387
Then I find very few patterns in the guest's memory after 3 seconds 4.777 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
After features/support/hooks.rb:331 1.038
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
32.462
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.535
And I prepare Tails for memory erasure tests 0.343
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.642
Then I find very few patterns in the guest's memory 1.935 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.390
Then patterns cover at least 75% of the test FS size in the guest's memory 1.979 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.999
Then I find very few patterns in the guest's memory after 3 seconds 4.743 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
# read cache
When I mount the USB drive again 0.167
And I read the content of the test FS 0.484
Then patterns cover at least 99% of the test FS size in the guest's memory 1.969 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.434
Then I find very few patterns in the guest's memory after 3 seconds 4.836 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
After features/support/hooks.rb:331 0.848
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:7.803
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.908
And I prepare Tails for memory erasure tests 0.346
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 38.250
Then I find very few patterns in the guest's memory 1.665 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.404
Then patterns cover at least 99% of the test FS size in the guest's memory 1.808 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.612
Then I find very few patterns in the guest's memory after 3 seconds 4.667 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
# read cache
When I mount the USB drive again 4.936
And I read the content of the test FS 0.335
Then patterns cover at least 99% of the test FS size in the guest's memory 1.826 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.455
Then I find very few patterns in the guest's memory after 3 seconds 4.584 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
After features/support/hooks.rb:331 1.081
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
52.839
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 6.682
And I prepare Tails for memory erasure tests 0.504
When I fill a 128 MiB file with a known pattern on the root filesystem 13.267
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 10.096
Then patterns cover at least 128 MiB in the guest's memory 1.694 
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 20.588 
Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)
After features/support/hooks.rb:331 3.797
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:21.753
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 3:49.168
And I prepare Tails for memory erasure tests 0.294
When I fill a 128 MiB file with a known pattern on the persistent filesystem 11.411
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.872 
Pattern coverage: 0.000% (0 MiB out of 1507 MiB reference memory)
After features/support/hooks.rb:331 3.512
After features/support/hooks.rb:100 0.009