Project Number Date
test_Tails_ISO_stable 6557 04 Aug 2026, 13:46

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 7:10.858 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
19.429
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.013
Given I have started Tails from DVD without network and logged in 6.326
And I prepare Tails for memory erasure tests 0.287
When I start a process allocating 128 MiB of memory with a known pattern 2.210
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.769 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.184
Then I find very few patterns in the guest's memory after 5 seconds 7.652 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
After features/support/hooks.rb:339 0.784
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
19.585
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 6.261
And I prepare Tails for memory erasure tests 0.304
And I find very few patterns in the guest's memory 2.624 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.484
Then patterns cover at least 99% of the test FS size in the guest's memory 2.892 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.386
Then I find very few patterns in the guest's memory after 3 seconds 5.632 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
After features/support/hooks.rb:339 0.639
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
36.416
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 6.193
And I prepare Tails for memory erasure tests 0.306
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.032
Then I find very few patterns in the guest's memory 2.661 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.850
Then patterns cover at least 75% of the test FS size in the guest's memory 3.154 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.706
Then I find very few patterns in the guest's memory after 3 seconds 5.684 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
# read cache
When I mount the USB drive again 0.205
And I read the content of the test FS 0.542
Then patterns cover at least 99% of the test FS size in the guest's memory 2.807 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.481
Then I find very few patterns in the guest's memory after 3 seconds 5.788 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
After features/support/hooks.rb:339 0.821
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:1.571
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 6.247
And I prepare Tails for memory erasure tests 0.386
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.123
Then I find very few patterns in the guest's memory 3.013 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.232
Then patterns cover at least 99% of the test FS size in the guest's memory 2.715 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.493
Then I find very few patterns in the guest's memory after 3 seconds 5.527 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
# read cache
When I mount the USB drive again 3.842
And I read the content of the test FS 0.317
Then patterns cover at least 99% of the test FS size in the guest's memory 2.624 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.418
Then I find very few patterns in the guest's memory after 3 seconds 5.628 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
After features/support/hooks.rb:339 0.682
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
44.313
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 6.255
And I prepare Tails for memory erasure tests 0.308
When I fill a 128 MiB file with a known pattern on the root filesystem 13.325
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.506
Then patterns cover at least 128 MiB in the guest's memory 2.214 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.698 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
After features/support/hooks.rb:339 3.695
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:9.542
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 3:37.911
And I prepare Tails for memory erasure tests 0.258
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.164
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.203 
Pattern coverage: 0.000% (0 MiB out of 1453 MiB reference memory)
After features/support/hooks.rb:339 3.670
After features/support/hooks.rb:108 0.010