Project Number Date
test_Tails_ISO_stable 6257 02 Apr 2026, 11:08

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 7:13.473 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
17.366
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 6.639
And I prepare Tails for memory erasure tests 0.360
When I start a process allocating 128 MiB of memory with a known pattern 1.168
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.118 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.350
Then I find very few patterns in the guest's memory after 5 seconds 6.728 
Pattern coverage: 0.000% (0 MiB out of 1500 MiB reference memory)
After features/support/hooks.rb:331 1.055
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
17.375
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 6.574
And I prepare Tails for memory erasure tests 0.413
And I find very few patterns in the guest's memory 1.868 
Pattern coverage: 0.000% (0 MiB out of 1509 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.446
Then patterns cover at least 99% of the test FS size in the guest's memory 1.863 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.306
Then I find very few patterns in the guest's memory after 3 seconds 4.903 
Pattern coverage: 0.000% (0 MiB out of 1509 MiB reference memory)
After features/support/hooks.rb:331 0.865
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
32.207
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 7.018
And I prepare Tails for memory erasure tests 0.338
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.324
Then I find very few patterns in the guest's memory 1.753 
Pattern coverage: 0.000% (0 MiB out of 1501 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.008
Then patterns cover at least 75% of the test FS size in the guest's memory 2.143 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.716
Then I find very few patterns in the guest's memory after 3 seconds 4.937 
Pattern coverage: 0.000% (0 MiB out of 1501 MiB reference memory)
# read cache
When I mount the USB drive again 0.134
And I read the content of the test FS 0.376
Then patterns cover at least 99% of the test FS size in the guest's memory 1.976 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.441
Then I find very few patterns in the guest's memory after 3 seconds 5.036 
Pattern coverage: 0.000% (0 MiB out of 1501 MiB reference memory)
After features/support/hooks.rb:331 0.996
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
57.588
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 6.467
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" 29.356
Then I find very few patterns in the guest's memory 1.796 
Pattern coverage: 0.000% (0 MiB out of 1507 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.068
Then patterns cover at least 99% of the test FS size in the guest's memory 1.742 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.497
Then I find very few patterns in the guest's memory after 3 seconds 4.639 
Pattern coverage: 0.000% (0 MiB out of 1507 MiB reference memory)
# read cache
When I mount the USB drive again 4.425
And I read the content of the test FS 0.283
Then patterns cover at least 99% of the test FS size in the guest's memory 1.935 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.367
Then I find very few patterns in the guest's memory after 3 seconds 4.610 
Pattern coverage: 0.000% (0 MiB out of 1507 MiB reference memory)
After features/support/hooks.rb:331 0.798
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
43.308
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 6.506
And I prepare Tails for memory erasure tests 0.415
When I fill a 128 MiB file with a known pattern on the root filesystem 12.527
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.875
Then patterns cover at least 128 MiB in the guest's memory 1.437 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.011
Then I find very few patterns in the guest's memory after 20 seconds 20.533 
Pattern coverage: 0.000% (0 MiB out of 1511 MiB reference memory)
After features/support/hooks.rb:331 3.748
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:25.627
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 3:53.460
And I prepare Tails for memory erasure tests 0.299
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.817
When I trigger shutdown 0.009
Then I find very few patterns in the guest's memory after 20 seconds 21.040 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:331 3.668
After features/support/hooks.rb:100 0.009