Project Number Date
test_Tails_ISO_stable 6140 11 Feb 2026, 12:04

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 7:10.973 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
18.804
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 6.694
And I prepare Tails for memory erasure tests 0.430
When I start a process allocating 128 MiB of memory with a known pattern 2.289
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.226 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.169
Then I find very few patterns in the guest's memory after 5 seconds 6.994 
Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)
After features/support/hooks.rb:331 0.957
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
19.686
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 6.642
And I prepare Tails for memory erasure tests 0.402
And I find very few patterns in the guest's memory 2.026 
Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.218
Then patterns cover at least 99% of the test FS size in the guest's memory 2.569 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.805
Then I find very few patterns in the guest's memory after 3 seconds 5.021 
Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)
After features/support/hooks.rb:331 0.616
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
33.740
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 7.127
And I prepare Tails for memory erasure tests 0.509
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.449
Then I find very few patterns in the guest's memory 1.726 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.721
Then patterns cover at least 75% of the test FS size in the guest's memory 2.341 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.032
Then I find very few patterns in the guest's memory after 3 seconds 4.982 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
# read cache
When I mount the USB drive again 0.147
And I read the content of the test FS 0.491
Then patterns cover at least 99% of the test FS size in the guest's memory 2.104 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.319
Then I find very few patterns in the guest's memory after 3 seconds 4.787 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
After features/support/hooks.rb:331 1.006
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
56.751
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 6.466
And I prepare Tails for memory erasure tests 0.353
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.616
Then I find very few patterns in the guest's memory 1.792 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 0.986
Then patterns cover at least 99% of the test FS size in the guest's memory 1.676 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.462
Then I find very few patterns in the guest's memory after 3 seconds 4.651 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
# read cache
When I mount the USB drive again 4.188
And I read the content of the test FS 0.297
Then patterns cover at least 99% of the test FS size in the guest's memory 2.023 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.410
Then I find very few patterns in the guest's memory after 3 seconds 4.825 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
After features/support/hooks.rb:331 1.044
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
43.947
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 6.488
And I prepare Tails for memory erasure tests 0.395
When I fill a 128 MiB file with a known pattern on the root filesystem 13.403
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.665
Then patterns cover at least 128 MiB in the guest's memory 1.473 
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 20.513 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
After features/support/hooks.rb:331 3.665
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:18.043
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 3:46.533
And I prepare Tails for memory erasure tests 0.480
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.023
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.999 
Pattern coverage: 0.000% (0 MiB out of 1534 MiB reference memory)
After features/support/hooks.rb:331 3.706
After features/support/hooks.rb:100 0.012