Project Number Date
test_Tails_ISO_stable 6449 16 Jun 2026, 14:09

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 8:25.007 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
19.797
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.023
Given I have started Tails from DVD without network and logged in 7.497
And I prepare Tails for memory erasure tests 0.410
When I start a process allocating 128 MiB of memory with a known pattern 1.183
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 3.029 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.338
Then I find very few patterns in the guest's memory after 5 seconds 7.337 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
After features/support/hooks.rb:339 1.072
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
19.672
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.025
Given I have started Tails from DVD without network and logged in 7.554
And I prepare Tails for memory erasure tests 0.464
And I find very few patterns in the guest's memory 1.869 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.019
Then patterns cover at least 99% of the test FS size in the guest's memory 2.365 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.407
Then I find very few patterns in the guest's memory after 3 seconds 4.990 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
After features/support/hooks.rb:339 0.661
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
35.192
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.024
Given I have started Tails from DVD without network and logged in 7.257
And I prepare Tails for memory erasure tests 0.350
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.991
Then I find very few patterns in the guest's memory 2.073 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.924
Then patterns cover at least 75% of the test FS size in the guest's memory 2.293 
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 4.997 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
# read cache
When I mount the USB drive again 0.162
And I read the content of the test FS 0.617
Then patterns cover at least 99% of the test FS size in the guest's memory 1.975 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.492
Then I find very few patterns in the guest's memory after 3 seconds 5.311 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
After features/support/hooks.rb:339 1.172
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
57.692
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.017
Given I have started Tails from DVD without network and logged in 7.453
And I prepare Tails for memory erasure tests 0.350
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 26.497
Then I find very few patterns in the guest's memory 2.303 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.668
Then patterns cover at least 99% of the test FS size in the guest's memory 2.291 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.717
Then I find very few patterns in the guest's memory after 3 seconds 4.664 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
# read cache
When I mount the USB drive again 3.632
And I read the content of the test FS 0.330
Then patterns cover at least 99% of the test FS size in the guest's memory 2.149 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.466
Then I find very few patterns in the guest's memory after 3 seconds 5.164 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
After features/support/hooks.rb:339 0.783
After features/support/hooks.rb:108 0.001
Tags: @product @slow @not_release_blocker
58.389
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.049
Given I have started Tails from DVD without network and logged in 7.601
And I prepare Tails for memory erasure tests 0.395
When I fill a 128 MiB file with a known pattern on the root filesystem 25.631
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.329
Then patterns cover at least 128 MiB in the guest's memory 1.672 
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 20.752 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
After features/support/hooks.rb:339 3.770
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
5:14.262
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.022
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:34.002
And I prepare Tails for memory erasure tests 0.542
When I fill a 128 MiB file with a known pattern on the persistent filesystem 18.114
When I trigger shutdown 0.026
Then I find very few patterns in the guest's memory after 20 seconds 21.575 
Pattern coverage: 0.000% (0 MiB out of 1508 MiB reference memory)
After features/support/hooks.rb:339 3.732
After features/support/hooks.rb:108 0.109