Project Number Date
test_Tails_ISO_devel 4237 17 Feb 2026, 14:28

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 7:34.917 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
18.750
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 6.671
And I prepare Tails for memory erasure tests 0.386
When I start a process allocating 128 MiB of memory with a known pattern 2.331
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.292 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.189
Then I find very few patterns in the guest's memory after 5 seconds 6.878 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
After features/support/hooks.rb:331 1.148
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
19.544
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 6.740
And I prepare Tails for memory erasure tests 0.362
And I find very few patterns in the guest's memory 2.216 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.217
Then patterns cover at least 99% of the test FS size in the guest's memory 2.283 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.768
Then I find very few patterns in the guest's memory after 3 seconds 4.955 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
After features/support/hooks.rb:331 0.697
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
34.088
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 6.577
And I prepare Tails for memory erasure tests 0.425
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.715
Then I find very few patterns in the guest's memory 1.984 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.872
Then patterns cover at least 75% of the test FS size in the guest's memory 2.135 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.001
Then I find very few patterns in the guest's memory after 3 seconds 4.886 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
# read cache
When I mount the USB drive again 0.180
And I read the content of the test FS 0.433
Then patterns cover at least 99% of the test FS size in the guest's memory 2.305 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.413
Then I find very few patterns in the guest's memory after 3 seconds 5.155 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
After features/support/hooks.rb:331 0.786
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
53.250
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 6.926
And I prepare Tails for memory erasure tests 0.363
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 24.772
Then I find very few patterns in the guest's memory 2.131 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.141
Then patterns cover at least 99% of the test FS size in the guest's memory 2.050 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.600
Then I find very few patterns in the guest's memory after 3 seconds 4.722 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
# read cache
When I mount the USB drive again 3.208
And I read the content of the test FS 0.298
Then patterns cover at least 99% of the test FS size in the guest's memory 1.846 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.386
Then I find very few patterns in the guest's memory after 3 seconds 4.801 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:331 1.169
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
45.307
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 6.823
And I prepare Tails for memory erasure tests 0.398
When I fill a 128 MiB file with a known pattern on the root filesystem 13.808
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.794
Then patterns cover at least 128 MiB in the guest's memory 1.868 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.607 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
After features/support/hooks.rb:331 3.762
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:43.976
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 4:11.478
And I prepare Tails for memory erasure tests 0.401
When I fill a 128 MiB file with a known pattern on the persistent filesystem 11.155
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.935 
Pattern coverage: 0.000% (0 MiB out of 1524 MiB reference memory)
After features/support/hooks.rb:331 3.843
After features/support/hooks.rb:100 0.011