Project Number Date
test_Tails_ISO_stable 6439 11 Jun 2026, 11:34

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 7:38.964 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
17.877
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails from DVD without network and logged in 6.844
And I prepare Tails for memory erasure tests 0.486
When I start a process allocating 128 MiB of memory with a known pattern 1.171
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.332 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.264
Then I find very few patterns in the guest's memory after 5 seconds 6.777 
Pattern coverage: 0.000% (0 MiB out of 1520 MiB reference memory)
After features/support/hooks.rb:335 0.896
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
18.722
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.654
And I prepare Tails for memory erasure tests 0.680
And I find very few patterns in the guest's memory 2.245 
Pattern coverage: 0.000% (0 MiB out of 1524 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.764
Then patterns cover at least 99% of the test FS size in the guest's memory 2.232 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.331
Then I find very few patterns in the guest's memory after 3 seconds 4.812 
Pattern coverage: 0.000% (0 MiB out of 1524 MiB reference memory)
After features/support/hooks.rb:335 1.075
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
35.176
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.671
And I prepare Tails for memory erasure tests 1.413
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.751
Then I find very few patterns in the guest's memory 2.187 
Pattern coverage: 0.000% (0 MiB out of 1518 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.607
Then patterns cover at least 75% of the test FS size in the guest's memory 2.213 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.744
Then I find very few patterns in the guest's memory after 3 seconds 4.916 
Pattern coverage: 0.000% (0 MiB out of 1518 MiB reference memory)
# read cache
When I mount the USB drive again 0.162
And I read the content of the test FS 0.685
Then patterns cover at least 99% of the test FS size in the guest's memory 2.269 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.469
Then I find very few patterns in the guest's memory after 3 seconds 5.082 
Pattern coverage: 0.000% (0 MiB out of 1518 MiB reference memory)
After features/support/hooks.rb:335 0.866
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
58.693
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.937
And I prepare Tails for memory erasure tests 0.403
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.589
Then I find very few patterns in the guest's memory 1.882 
Pattern coverage: 0.000% (0 MiB out of 1520 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.642
Then patterns cover at least 99% of the test FS size in the guest's memory 2.040 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.606
Then I find very few patterns in the guest's memory after 3 seconds 4.770 
Pattern coverage: 0.000% (0 MiB out of 1520 MiB reference memory)
# read cache
When I mount the USB drive again 3.623
And I read the content of the test FS 0.345
Then patterns cover at least 99% of the test FS size in the guest's memory 2.566 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.504
Then I find very few patterns in the guest's memory after 3 seconds 4.781 
Pattern coverage: 0.000% (0 MiB out of 1520 MiB reference memory)
After features/support/hooks.rb:335 0.613
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
58.155
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.903
And I prepare Tails for memory erasure tests 0.344
When I fill a 128 MiB file with a known pattern on the root filesystem 26.487
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.181
Then patterns cover at least 128 MiB in the guest's memory 1.583 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.010
Then I find very few patterns in the guest's memory after 20 seconds 20.644 
Pattern coverage: 0.000% (0 MiB out of 1525 MiB reference memory)
After features/support/hooks.rb:335 3.444
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
4:30.340
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.004
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:51.054
And I prepare Tails for memory erasure tests 0.532
When I fill a 128 MiB file with a known pattern on the persistent filesystem 17.717
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.030 
Pattern coverage: 0.000% (0 MiB out of 1544 MiB reference memory)
After features/support/hooks.rb:335 3.647
After features/support/hooks.rb:104 0.010