Project Number Date
test_Tails_ISO_devel 4624 17 Sep 2026, 14:17

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 7:38.101 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
20.153
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 6.506
And I prepare Tails for memory erasure tests 0.320
When I start a process allocating 128 MiB of memory with a known pattern 2.187
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.862 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.231
Then I find very few patterns in the guest's memory after 5 seconds 8.044 
Pattern coverage: 0.000% (0 MiB out of 1405 MiB reference memory)
After features/support/hooks.rb:339 0.728
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
20.486
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 6.594
And I prepare Tails for memory erasure tests 0.341
And I find very few patterns in the guest's memory 2.713 
Pattern coverage: 0.000% (0 MiB out of 1409 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.630
Then patterns cover at least 99% of the test FS size in the guest's memory 2.947 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.394
Then I find very few patterns in the guest's memory after 3 seconds 5.863 
Pattern coverage: 0.000% (0 MiB out of 1409 MiB reference memory)
After features/support/hooks.rb:339 0.842
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
40.234
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.004
Given I have started Tails from DVD without network and logged in 6.841
And I prepare Tails for memory erasure tests 0.325
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.316
Then I find very few patterns in the guest's memory 4.642 
Pattern coverage: 0.000% (0 MiB out of 1402 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.840
Then patterns cover at least 75% of the test FS size in the guest's memory 3.271 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.682
Then I find very few patterns in the guest's memory after 3 seconds 5.796 
Pattern coverage: 0.000% (0 MiB out of 1402 MiB reference memory)
# read cache
When I mount the USB drive again 0.207
And I read the content of the test FS 0.593
Then patterns cover at least 99% of the test FS size in the guest's memory 3.005 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.438
Then I find very few patterns in the guest's memory after 3 seconds 6.272 
Pattern coverage: 0.000% (0 MiB out of 1402 MiB reference memory)
After features/support/hooks.rb:339 1.214
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:4.042
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 6.788
And I prepare Tails for memory erasure tests 0.339
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 27.934
Then I find very few patterns in the guest's memory 2.785 
Pattern coverage: 0.000% (0 MiB out of 1406 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.336
Then patterns cover at least 99% of the test FS size in the guest's memory 2.829 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.556
Then I find very few patterns in the guest's memory after 3 seconds 5.512 
Pattern coverage: 0.000% (0 MiB out of 1406 MiB reference memory)
# read cache
When I mount the USB drive again 3.267
And I read the content of the test FS 0.368
Then patterns cover at least 99% of the test FS size in the guest's memory 4.667 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 1.854
Then I find very few patterns in the guest's memory after 3 seconds 5.800 
Pattern coverage: 0.000% (0 MiB out of 1406 MiB reference memory)
After features/support/hooks.rb:339 0.752
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
44.295
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.333
And I prepare Tails for memory erasure tests 0.350
When I fill a 128 MiB file with a known pattern on the root filesystem 13.074
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.496
Then patterns cover at least 128 MiB in the guest's memory 2.231 
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 20.803 
Pattern coverage: 0.000% (0 MiB out of 1416 MiB reference memory)
After features/support/hooks.rb:339 3.732
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:28.889
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:56.505
And I prepare Tails for memory erasure tests 0.252
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.961
When I trigger shutdown 0.014
Then I find very few patterns in the guest's memory after 20 seconds 22.154 
Pattern coverage: 0.000% (0 MiB out of 1434 MiB reference memory)
After features/support/hooks.rb:339 3.802
After features/support/hooks.rb:108 0.011