Project Number Date
test_Tails_ISO_stable 6283 09 Apr 2026, 12:20

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 7:42.982 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
17.617
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 6.763
And I prepare Tails for memory erasure tests 0.380
When I start a process allocating 128 MiB of memory with a known pattern 1.191
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.048 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.184
Then I find very few patterns in the guest's memory after 5 seconds 7.047 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:331 0.645
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
18.594
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.005
Given I have started Tails from DVD without network and logged in 6.933
And I prepare Tails for memory erasure tests 0.383
And I find very few patterns in the guest's memory 1.846 
Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.565
Then patterns cover at least 99% of the test FS size in the guest's memory 2.436 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.453
Then I find very few patterns in the guest's memory after 3 seconds 4.977 
Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)
After features/support/hooks.rb:331 0.740
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
46.175
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.007
Given I have started Tails from DVD without network and logged in 19.773
And I prepare Tails for memory erasure tests 0.413
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.413
Then I find very few patterns in the guest's memory 1.862 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.115
Then patterns cover at least 75% of the test FS size in the guest's memory 2.159 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.742
Then I find very few patterns in the guest's memory after 3 seconds 5.188 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
# read cache
When I mount the USB drive again 0.169
And I read the content of the test FS 0.655
Then patterns cover at least 99% of the test FS size in the guest's memory 2.460 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.428
Then I find very few patterns in the guest's memory after 3 seconds 4.790 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:331 0.625
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
57.493
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 6.596
And I prepare Tails for memory erasure tests 0.555
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.233
Then I find very few patterns in the guest's memory 1.907 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.176
Then patterns cover at least 99% of the test FS size in the guest's memory 1.780 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.591
Then I find very few patterns in the guest's memory after 3 seconds 4.700 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
# read cache
When I mount the USB drive again 4.156
And I read the content of the test FS 0.318
Then patterns cover at least 99% of the test FS size in the guest's memory 2.108 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.530
Then I find very few patterns in the guest's memory after 3 seconds 4.836 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
After features/support/hooks.rb:331 1.054
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
44.371
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 6.706
And I prepare Tails for memory erasure tests 0.438
When I fill a 128 MiB file with a known pattern on the root filesystem 13.419
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.718
Then patterns cover at least 128 MiB in the guest's memory 1.528 
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 20.553 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
After features/support/hooks.rb:331 3.679
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:38.729
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 4:6.425
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 10.853
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.075 
Pattern coverage: 0.000% (0 MiB out of 1517 MiB reference memory)
After features/support/hooks.rb:331 3.587
After features/support/hooks.rb:100 0.026