Project Number Date
test_Tails_ISO_devel 4351 19 Apr 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 7:16.883 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
20.793
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 6.652
And I prepare Tails for memory erasure tests 0.447
When I start a process allocating 128 MiB of memory with a known pattern 3.958
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.097 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.914
Then I find very few patterns in the guest's memory after 5 seconds 6.723 
Pattern coverage: 0.000% (0 MiB out of 1472 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
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 6.496
And I prepare Tails for memory erasure tests 0.341
And I find very few patterns in the guest's memory 1.918 
Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.948
Then patterns cover at least 99% of the test FS size in the guest's memory 1.936 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.381
Then I find very few patterns in the guest's memory after 3 seconds 4.829 
Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)
After features/support/hooks.rb:331 1.000
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
32.380
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 6.546
And I prepare Tails for memory erasure tests 0.389
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.448
Then I find very few patterns in the guest's memory 1.740 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.724
Then patterns cover at least 75% of the test FS size in the guest's memory 2.031 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.836
Then I find very few patterns in the guest's memory after 3 seconds 4.812 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
# read cache
When I mount the USB drive again 0.165
And I read the content of the test FS 0.480
Then patterns cover at least 99% of the test FS size in the guest's memory 1.855 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.473
Then I find very few patterns in the guest's memory after 3 seconds 4.874 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
After features/support/hooks.rb:331 1.148
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:4.883
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 6.755
And I prepare Tails for memory erasure tests 0.412
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 33.905
Then I find very few patterns in the guest's memory 1.841 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.507
Then patterns cover at least 99% of the test FS size in the guest's memory 1.960 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.676
Then I find very few patterns in the guest's memory after 3 seconds 4.755 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
# read cache
When I mount the USB drive again 5.381
And I read the content of the test FS 0.386
Then patterns cover at least 99% of the test FS size in the guest's memory 1.977 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.613
Then I find very few patterns in the guest's memory after 3 seconds 4.710 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
After features/support/hooks.rb:331 1.194
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
43.539
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 6.664
And I prepare Tails for memory erasure tests 0.418
When I fill a 128 MiB file with a known pattern on the root filesystem 12.625
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.848
Then patterns cover at least 128 MiB in the guest's memory 1.475 
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 20.499 
Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)
After features/support/hooks.rb:331 3.534
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:17.433
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 3:45.791
And I prepare Tails for memory erasure tests 0.329
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.317
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.988 
Pattern coverage: 0.000% (0 MiB out of 1522 MiB reference memory)
After features/support/hooks.rb:331 3.943
After features/support/hooks.rb:100 0.019