Project Number Date
test_Tails_ISO_devel 4361 23 Apr 2026, 12:13

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 7:19.765 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
17.509
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 6.686
And I prepare Tails for memory erasure tests 0.364
When I start a process allocating 128 MiB of memory with a known pattern 1.214
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.008 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.426
Then I find very few patterns in the guest's memory after 5 seconds 6.809 
Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)
After features/support/hooks.rb:331 1.085
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
17.852
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 6.819
And I prepare Tails for memory erasure tests 0.416
And I find very few patterns in the guest's memory 1.786 
Pattern coverage: 0.000% (0 MiB out of 1469 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.572
Then patterns cover at least 99% of the test FS size in the guest's memory 2.080 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.330
Then I find very few patterns in the guest's memory after 3 seconds 4.846 
Pattern coverage: 0.000% (0 MiB out of 1469 MiB reference memory)
After features/support/hooks.rb:331 1.072
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
32.633
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 6.738
And I prepare Tails for memory erasure tests 0.409
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.438
Then I find very few patterns in the guest's memory 1.913 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.586
Then patterns cover at least 75% of the test FS size in the guest's memory 2.126 
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 4.779 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
# read cache
When I mount the USB drive again 0.236
And I read the content of the test FS 0.430
Then patterns cover at least 99% of the test FS size in the guest's memory 1.943 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.406
Then I find very few patterns in the guest's memory after 3 seconds 4.875 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
After features/support/hooks.rb:331 1.797
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:9.407
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 6.811
And I prepare Tails for memory erasure tests 0.387
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 39.535
Then I find very few patterns in the guest's memory 1.759 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.654
Then patterns cover at least 99% of the test FS size in the guest's memory 1.885 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.572
Then I find very few patterns in the guest's memory after 3 seconds 4.692 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
# read cache
When I mount the USB drive again 4.169
And I read the content of the test FS 0.337
Then patterns cover at least 99% of the test FS size in the guest's memory 1.950 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.940
Then I find very few patterns in the guest's memory after 3 seconds 4.712 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
After features/support/hooks.rb:331 1.063
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
44.534
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 6.621
And I prepare Tails for memory erasure tests 0.391
When I fill a 128 MiB file with a known pattern on the root filesystem 13.063
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.321
Then patterns cover at least 128 MiB in the guest's memory 1.579 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.550 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
After features/support/hooks.rb:331 3.505
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:17.827
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 3:45.513
And I prepare Tails for memory erasure tests 0.310
When I fill a 128 MiB file with a known pattern on the persistent filesystem 11.096
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.901 
Pattern coverage: 0.000% (0 MiB out of 1496 MiB reference memory)
After features/support/hooks.rb:331 3.413
After features/support/hooks.rb:100 0.019