Project Number Date
test_Tails_ISO_stable 6305 16 Apr 2026, 11:25

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 7:20.769 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
17.836
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 6.801
And I prepare Tails for memory erasure tests 0.409
When I start a process allocating 128 MiB of memory with a known pattern 1.173
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.990 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.191
Then I find very few patterns in the guest's memory after 5 seconds 7.270 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
After features/support/hooks.rb:331 1.131
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
18.099
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 6.953
And I prepare Tails for memory erasure tests 0.462
And I find very few patterns in the guest's memory 1.800 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.470
Then patterns cover at least 99% of the test FS size in the guest's memory 2.112 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.335
Then I find very few patterns in the guest's memory after 3 seconds 4.965 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
After features/support/hooks.rb:331 0.705
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
33.431
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 6.849
And I prepare Tails for memory erasure tests 0.447
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.356
Then I find very few patterns in the guest's memory 1.943 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.242
Then patterns cover at least 75% of the test FS size in the guest's memory 2.586 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.873
Then I find very few patterns in the guest's memory after 3 seconds 4.999 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
# read cache
When I mount the USB drive again 0.166
And I read the content of the test FS 0.518
Then patterns cover at least 99% of the test FS size in the guest's memory 2.161 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.377
Then I find very few patterns in the guest's memory after 3 seconds 4.906 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
After features/support/hooks.rb:331 0.937
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:0.032
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 6.647
And I prepare Tails for memory erasure tests 0.480
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 31.056
Then I find very few patterns in the guest's memory 1.792 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.227
Then patterns cover at least 99% of the test FS size in the guest's memory 2.009 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.705
Then I find very few patterns in the guest's memory after 3 seconds 4.955 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
# read cache
When I mount the USB drive again 3.972
And I read the content of the test FS 0.299
Then patterns cover at least 99% of the test FS size in the guest's memory 1.762 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.430
Then I find very few patterns in the guest's memory after 3 seconds 4.691 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:331 0.779
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
43.669
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 6.767
And I prepare Tails for memory erasure tests 0.497
When I fill a 128 MiB file with a known pattern on the root filesystem 12.375
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.810
Then patterns cover at least 128 MiB in the guest's memory 1.602 
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 20.611 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
After features/support/hooks.rb:331 3.391
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:27.700
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 3:54.915
And I prepare Tails for memory erasure tests 0.509
When I fill a 128 MiB file with a known pattern on the persistent filesystem 11.316
When I trigger shutdown 0.008
Then I find very few patterns in the guest's memory after 20 seconds 20.949 
Pattern coverage: 0.000% (0 MiB out of 1530 MiB reference memory)
After features/support/hooks.rb:331 3.596
After features/support/hooks.rb:100 0.010