Project Number Date
test_Tails_ISO_devel 4295 26 Mar 2026, 13:43

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 7:51.039 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
18.430
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 6.696
And I prepare Tails for memory erasure tests 0.519
When I start a process allocating 128 MiB of memory with a known pattern 1.465
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.266 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.370
Then I find very few patterns in the guest's memory after 5 seconds 7.112 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
After features/support/hooks.rb:331 0.971
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
18.685
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 6.956
And I prepare Tails for memory erasure tests 0.560
And I find very few patterns in the guest's memory 1.922 
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 1.685
Then patterns cover at least 99% of the test FS size in the guest's memory 2.197 
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 4.976 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
After features/support/hooks.rb:331 0.623
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
38.053
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 6.912
And I prepare Tails for memory erasure tests 0.421
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.700
Then I find very few patterns in the guest's memory 2.169 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.342
Then patterns cover at least 75% of the test FS size in the guest's memory 2.413 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 4.432
Then I find very few patterns in the guest's memory after 3 seconds 4.851 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
# read cache
When I mount the USB drive again 0.227
And I read the content of the test FS 0.801
Then patterns cover at least 99% of the test FS size in the guest's memory 2.358 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.440
Then I find very few patterns in the guest's memory after 3 seconds 4.982 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
After features/support/hooks.rb:331 0.940
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:6.315
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 7.072
And I prepare Tails for memory erasure tests 0.502
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 32.623
Then I find very few patterns in the guest's memory 1.897 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.618
Then patterns cover at least 99% of the test FS size in the guest's memory 1.897 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.631
Then I find very few patterns in the guest's memory after 3 seconds 4.904 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
# read cache
When I mount the USB drive again 7.468
And I read the content of the test FS 0.371
Then patterns cover at least 99% of the test FS size in the guest's memory 2.000 
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 4.738 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
After features/support/hooks.rb:331 1.249
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
51.363
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 6.932
And I prepare Tails for memory erasure tests 0.501
When I fill a 128 MiB file with a known pattern on the root filesystem 12.742
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 8.886
Then patterns cover at least 128 MiB in the guest's memory 1.658 
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 20.636 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
After features/support/hooks.rb:331 3.860
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:38.190
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:5.478
And I prepare Tails for memory erasure tests 0.370
When I fill a 128 MiB file with a known pattern on the persistent filesystem 11.345
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.991 
Pattern coverage: 0.000% (0 MiB out of 1509 MiB reference memory)
After features/support/hooks.rb:331 3.600
After features/support/hooks.rb:100 0.063