Project Number Date
test_Tails_ISO_stable 6267 06 Apr 2026, 14:02

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 7:8.465 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
17.678
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.708
And I prepare Tails for memory erasure tests 0.382
When I start a process allocating 128 MiB of memory with a known pattern 1.159
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.030 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.621
Then I find very few patterns in the guest's memory after 5 seconds 6.777 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
After features/support/hooks.rb:331 1.188
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
17.735
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 6.677
And I prepare Tails for memory erasure tests 0.358
And I find very few patterns in the guest's memory 1.930 
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 1.523
Then patterns cover at least 99% of the test FS size in the guest's memory 2.120 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.335
Then I find very few patterns in the guest's memory after 3 seconds 4.790 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
After features/support/hooks.rb:331 1.045
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
32.435
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 6.770
And I prepare Tails for memory erasure tests 0.472
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.510
Then I find very few patterns in the guest's memory 1.827 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.975
Then patterns cover at least 75% of the test FS size in the guest's memory 2.052 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.748
Then I find very few patterns in the guest's memory after 3 seconds 4.976 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
# read cache
When I mount the USB drive again 0.191
And I read the content of the test FS 0.590
Then patterns cover at least 99% of the test FS size in the guest's memory 2.087 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.422
Then I find very few patterns in the guest's memory after 3 seconds 4.807 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
After features/support/hooks.rb:331 0.859
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
58.795
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.653
And I prepare Tails for memory erasure tests 0.402
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.865
Then I find very few patterns in the guest's memory 1.766 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.140
Then patterns cover at least 99% of the test FS size in the guest's memory 1.961 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.545
Then I find very few patterns in the guest's memory after 3 seconds 4.728 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
# read cache
When I mount the USB drive again 4.098
And I read the content of the test FS 0.364
Then patterns cover at least 99% of the test FS size in the guest's memory 2.004 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.486
Then I find very few patterns in the guest's memory after 3 seconds 4.777 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
After features/support/hooks.rb:331 1.141
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
44.111
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 6.613
And I prepare Tails for memory erasure tests 0.403
When I fill a 128 MiB file with a known pattern on the root filesystem 12.817
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.262
Then patterns cover at least 128 MiB in the guest's memory 1.516 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.007
Then I find very few patterns in the guest's memory after 20 seconds 20.490 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
After features/support/hooks.rb:331 3.464
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:17.708
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:45.537
And I prepare Tails for memory erasure tests 0.311
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.972
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.880 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
After features/support/hooks.rb:331 3.545
After features/support/hooks.rb:100 0.048