Project Number Date
test_Tails_ISO_stable 6414 01 Jun 2026, 14:42

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 7:14.242 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
16.722
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 6.462
And I prepare Tails for memory erasure tests 0.340
When I start a process allocating 128 MiB of memory with a known pattern 1.189
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.905 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.186
Then I find very few patterns in the guest's memory after 5 seconds 6.638 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
After features/support/hooks.rb:335 1.099
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
17.031
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 6.474
And I prepare Tails for memory erasure tests 0.322
And I find very few patterns in the guest's memory 1.732 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.590
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" 0.293
Then I find very few patterns in the guest's memory after 3 seconds 4.753 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
After features/support/hooks.rb:335 0.702
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
31.260
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 6.546
And I prepare Tails for memory erasure tests 0.365
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.093
Then I find very few patterns in the guest's memory 1.701 
Pattern coverage: 0.000% (0 MiB out of 1496 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.486
Then patterns cover at least 75% of the test FS size in the guest's memory 2.030 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.688
Then I find very few patterns in the guest's memory after 3 seconds 4.780 
Pattern coverage: 0.000% (0 MiB out of 1496 MiB reference memory)
# read cache
When I mount the USB drive again 0.217
And I read the content of the test FS 0.412
Then patterns cover at least 99% of the test FS size in the guest's memory 1.829 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.358
Then I find very few patterns in the guest's memory after 3 seconds 4.749 
Pattern coverage: 0.000% (0 MiB out of 1496 MiB reference memory)
After features/support/hooks.rb:335 0.972
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
57.853
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 6.355
And I prepare Tails for memory erasure tests 0.318
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 30.204
Then I find very few patterns in the guest's memory 1.644 
Pattern coverage: 0.000% (0 MiB out of 1496 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.289
Then patterns cover at least 99% of the test FS size in the guest's memory 1.760 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.488
Then I find very few patterns in the guest's memory after 3 seconds 4.673 
Pattern coverage: 0.000% (0 MiB out of 1496 MiB reference memory)
# read cache
When I mount the USB drive again 3.993
And I read the content of the test FS 0.290
Then patterns cover at least 99% of the test FS size in the guest's memory 1.799 
Pattern coverage: 106.115% (97 MiB out of 91 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 4.596 
Pattern coverage: 0.000% (0 MiB out of 1496 MiB reference memory)
After features/support/hooks.rb:335 0.936
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
55.289
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 6.439
And I prepare Tails for memory erasure tests 0.330
When I fill a 128 MiB file with a known pattern on the root filesystem 24.677
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.007
Then patterns cover at least 128 MiB in the guest's memory 1.350 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.013
Then I find very few patterns in the guest's memory after 20 seconds 20.470 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
After features/support/hooks.rb:335 3.813
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
4:16.085
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:35.382
And I prepare Tails for memory erasure tests 0.297
When I fill a 128 MiB file with a known pattern on the persistent filesystem 19.572
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.828 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
After features/support/hooks.rb:335 3.655
After features/support/hooks.rb:104 0.010