Project Number Date
test_Tails_ISO_devel 4224 10 Feb 2026, 11:18

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 7:4.100 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
18.458
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 6.655
And I prepare Tails for memory erasure tests 0.449
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 2.100 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.230
Then I find very few patterns in the guest's memory after 5 seconds 6.810 
Pattern coverage: 0.000% (0 MiB out of 1498 MiB reference memory)
After features/support/hooks.rb:331 0.778
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
18.490
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 6.573
And I prepare Tails for memory erasure tests 0.408
And I find very few patterns in the guest's memory 1.826 
Pattern coverage: 0.000% (0 MiB out of 1496 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.164
Then patterns cover at least 99% of the test FS size in the guest's memory 1.990 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.675
Then I find very few patterns in the guest's memory after 3 seconds 4.851 
Pattern coverage: 0.000% (0 MiB out of 1496 MiB reference memory)
After features/support/hooks.rb:331 0.716
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
31.860
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 6.544
And I prepare Tails for memory erasure tests 0.438
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.277
Then I find very few patterns in the guest's memory 1.799 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.374
Then patterns cover at least 75% of the test FS size in the guest's memory 1.938 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.000
Then I find very few patterns in the guest's memory after 3 seconds 4.850 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
# read cache
When I mount the USB drive again 0.162
And I read the content of the test FS 0.531
Then patterns cover at least 99% of the test FS size in the guest's memory 1.905 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.226
Then I find very few patterns in the guest's memory after 3 seconds 4.809 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
After features/support/hooks.rb:331 0.911
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
55.458
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 6.481
And I prepare Tails for memory erasure tests 0.367
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.262
Then I find very few patterns in the guest's memory 1.692 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.034
Then patterns cover at least 99% of the test FS size in the guest's memory 1.749 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.494
Then I find very few patterns in the guest's memory after 3 seconds 4.569 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
# read cache
When I mount the USB drive again 3.741
And I read the content of the test FS 0.304
Then patterns cover at least 99% of the test FS size in the guest's memory 1.773 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.465
Then I find very few patterns in the guest's memory after 3 seconds 4.521 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
After features/support/hooks.rb:331 1.126
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
43.547
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 6.468
And I prepare Tails for memory erasure tests 0.399
When I fill a 128 MiB file with a known pattern on the root filesystem 13.050
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.696
Then patterns cover at least 128 MiB in the guest's memory 1.440 
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 20.485 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
After features/support/hooks.rb:331 3.489
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:16.285
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:45.108
And I prepare Tails for memory erasure tests 0.289
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.018
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.862 
Pattern coverage: 0.000% (0 MiB out of 1527 MiB reference memory)
After features/support/hooks.rb:331 3.424
After features/support/hooks.rb:100 0.020