Project Number Date
test_Tails_ISO_stable 6220 21 Mar 2026, 11:05

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 7:0.476 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
17.548
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 6.717
And I prepare Tails for memory erasure tests 0.450
When I start a process allocating 128 MiB of memory with a known pattern 1.168
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.197 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.239
Then I find very few patterns in the guest's memory after 5 seconds 6.774 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
After features/support/hooks.rb:331 0.666
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
17.394
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 6.692
And I prepare Tails for memory erasure tests 0.411
And I find very few patterns in the guest's memory 1.804 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.376
Then patterns cover at least 99% of the test FS size in the guest's memory 1.988 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.308
Then I find very few patterns in the guest's memory after 3 seconds 4.812 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
After features/support/hooks.rb:331 0.805
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
32.654
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 6.664
And I prepare Tails for memory erasure tests 0.401
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.474
Then I find very few patterns in the guest's memory 1.921 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.181
Then patterns cover at least 75% of the test FS size in the guest's memory 1.971 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.732
Then I find very few patterns in the guest's memory after 3 seconds 4.928 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
# read cache
When I mount the USB drive again 0.184
And I read the content of the test FS 0.429
Then patterns cover at least 99% of the test FS size in the guest's memory 2.436 
Pattern coverage: 100.000% (127 MiB out of 127 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 4.884 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
After features/support/hooks.rb:331 0.630
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
50.462
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 6.581
And I prepare Tails for memory erasure tests 0.354
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 22.453
Then I find very few patterns in the guest's memory 1.784 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.126
Then patterns cover at least 99% of the test FS size in the guest's memory 2.043 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.589
Then I find very few patterns in the guest's memory after 3 seconds 4.581 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
# read cache
When I mount the USB drive again 3.686
And I read the content of the test FS 0.332
Then patterns cover at least 99% of the test FS size in the guest's memory 1.796 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.444
Then I find very few patterns in the guest's memory after 3 seconds 4.687 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
After features/support/hooks.rb:331 0.761
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
43.794
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 6.817
And I prepare Tails for memory erasure tests 0.350
When I fill a 128 MiB file with a known pattern on the root filesystem 12.338
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.969
Then patterns cover at least 128 MiB in the guest's memory 1.680 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.014
Then I find very few patterns in the guest's memory after 20 seconds 20.622 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
After features/support/hooks.rb:331 3.793
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:18.623
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 3:46.469
And I prepare Tails for memory erasure tests 0.348
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.852
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.947 
Pattern coverage: 0.000% (0 MiB out of 1513 MiB reference memory)
After features/support/hooks.rb:331 3.666
After features/support/hooks.rb:100 0.010