Project Number Date
test_Tails_ISO_stable 6726 07 Oct 2026, 07:53

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 8:4.197 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
20.240
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 6.524
And I prepare Tails for memory erasure tests 0.267
When I start a process allocating 128 MiB of memory with a known pattern 2.185
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 3.103 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.255
Then I find very few patterns in the guest's memory after 5 seconds 7.904 
Pattern coverage: 0.000% (0 MiB out of 1427 MiB reference memory)
After features/support/hooks.rb:339 1.058
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
20.977
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 6.395
And I prepare Tails for memory erasure tests 0.346
And I find very few patterns in the guest's memory 3.187 
Pattern coverage: 0.000% (0 MiB out of 1424 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.587
Then patterns cover at least 99% of the test FS size in the guest's memory 3.145 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.389
Then I find very few patterns in the guest's memory after 3 seconds 5.924 
Pattern coverage: 0.000% (0 MiB out of 1424 MiB reference memory)
After features/support/hooks.rb:339 0.802
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
38.328
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 6.433
And I prepare Tails for memory erasure tests 0.345
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.453
Then I find very few patterns in the guest's memory 2.681 
Pattern coverage: 0.000% (0 MiB out of 1427 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.674
Then patterns cover at least 75% of the test FS size in the guest's memory 3.235 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.681
Then I find very few patterns in the guest's memory after 3 seconds 5.747 
Pattern coverage: 0.000% (0 MiB out of 1427 MiB reference memory)
# read cache
When I mount the USB drive again 0.193
And I read the content of the test FS 0.608
Then patterns cover at least 99% of the test FS size in the guest's memory 3.876 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.432
Then I find very few patterns in the guest's memory after 3 seconds 5.963 
Pattern coverage: 0.000% (0 MiB out of 1427 MiB reference memory)
After features/support/hooks.rb:339 0.970
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:6.070
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 6.847
And I prepare Tails for memory erasure tests 0.419
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 31.666
Then I find very few patterns in the guest's memory 2.707 
Pattern coverage: 0.000% (0 MiB out of 1415 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.108
Then patterns cover at least 99% of the test FS size in the guest's memory 2.751 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.514
Then I find very few patterns in the guest's memory after 3 seconds 6.333 
Pattern coverage: 0.000% (0 MiB out of 1415 MiB reference memory)
# read cache
When I mount the USB drive again 4.248
And I read the content of the test FS 0.411
Then patterns cover at least 99% of the test FS size in the guest's memory 2.957 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.472
Then I find very few patterns in the guest's memory after 3 seconds 5.630 
Pattern coverage: 0.000% (0 MiB out of 1415 MiB reference memory)
After features/support/hooks.rb:339 0.699
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
45.318
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 6.460
And I prepare Tails for memory erasure tests 0.343
When I fill a 128 MiB file with a known pattern on the root filesystem 12.797
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.617
Then patterns cover at least 128 MiB in the guest's memory 3.269 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.008
Then I find very few patterns in the guest's memory after 20 seconds 20.821 
Pattern coverage: 0.000% (0 MiB out of 1419 MiB reference memory)
After features/support/hooks.rb:339 3.705
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:53.261
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 4:21.644
And I prepare Tails for memory erasure tests 0.346
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.672
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 21.590 
Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)
After features/support/hooks.rb:339 3.558
After features/support/hooks.rb:108 0.032