Project Number Date
test_Tails_ISO_stable 6099 28 Jan 2026, 22:33

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 7:21.001 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
18.874
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 6.458
And I prepare Tails for memory erasure tests 0.538
When I start a process allocating 128 MiB of memory with a known pattern 2.195
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.324 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.356
Then I find very few patterns in the guest's memory after 5 seconds 7.002 
Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)
After features/support/hooks.rb:331 0.953
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
19.415
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 6.658
And I prepare Tails for memory erasure tests 0.410
And I find very few patterns in the guest's memory 1.919 
Pattern coverage: 0.000% (0 MiB out of 1460 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.465
Then patterns cover at least 99% of the test FS size in the guest's memory 2.162 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.823
Then I find very few patterns in the guest's memory after 3 seconds 4.974 
Pattern coverage: 0.000% (0 MiB out of 1460 MiB reference memory)
After features/support/hooks.rb:331 0.977
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
33.567
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 6.536
And I prepare Tails for memory erasure tests 0.351
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.567
Then I find very few patterns in the guest's memory 2.020 
Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 3.222
Then patterns cover at least 75% of the test FS size in the guest's memory 2.028 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.198
Then I find very few patterns in the guest's memory after 3 seconds 4.777 
Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)
# read cache
When I mount the USB drive again 0.160
And I read the content of the test FS 0.453
Then patterns cover at least 99% of the test FS size in the guest's memory 2.007 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.284
Then I find very few patterns in the guest's memory after 3 seconds 4.958 
Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)
After features/support/hooks.rb:331 0.881
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:7.849
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 6.681
And I prepare Tails for memory erasure tests 0.397
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 31.246
Then I find very few patterns in the guest's memory 1.794 
Pattern coverage: 0.000% (0 MiB out of 1464 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.809
Then patterns cover at least 99% of the test FS size in the guest's memory 1.828 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.656
Then I find very few patterns in the guest's memory after 3 seconds 4.669 
Pattern coverage: 0.000% (0 MiB out of 1464 MiB reference memory)
# read cache
When I mount the USB drive again 11.339
And I read the content of the test FS 0.352
Then patterns cover at least 99% of the test FS size in the guest's memory 1.939 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.508
Then I find very few patterns in the guest's memory after 3 seconds 4.626 
Pattern coverage: 0.000% (0 MiB out of 1464 MiB reference memory)
After features/support/hooks.rb:331 1.108
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
44.737
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 6.571
And I prepare Tails for memory erasure tests 0.516
When I fill a 128 MiB file with a known pattern on the root filesystem 13.592
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.987
Then patterns cover at least 128 MiB in the guest's memory 1.598 
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 20.465 
Pattern coverage: 0.000% (0 MiB out of 1469 MiB reference memory)
After features/support/hooks.rb:331 4.053
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:16.557
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 3:45.070
And I prepare Tails for memory erasure tests 0.366
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.211
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.903 
Pattern coverage: 0.000% (0 MiB out of 1501 MiB reference memory)
After features/support/hooks.rb:331 3.682
After features/support/hooks.rb:100 0.010