Project Number Date
test_Tails_ISO_stable 6435 09 Jun 2026, 07:37

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 7:27.011 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
17.148
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails from DVD without network and logged in 6.590
And I prepare Tails for memory erasure tests 0.334
When I start a process allocating 128 MiB of memory with a known pattern 1.163
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.972 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.173
Then I find very few patterns in the guest's memory after 5 seconds 6.914 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
After features/support/hooks.rb:335 0.675
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
17.363
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails from DVD without network and logged in 6.675
And I prepare Tails for memory erasure tests 0.384
And I find very few patterns in the guest's memory 1.793 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.567
Then patterns cover at least 99% of the test FS size in the guest's memory 1.920 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.279
Then I find very few patterns in the guest's memory after 3 seconds 4.743 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
After features/support/hooks.rb:335 0.869
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
32.187
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.692
And I prepare Tails for memory erasure tests 0.364
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.237
Then I find very few patterns in the guest's memory 1.722 
Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.403
Then patterns cover at least 75% of the test FS size in the guest's memory 2.074 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.690
Then I find very few patterns in the guest's memory after 3 seconds 5.012 
Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)
# read cache
When I mount the USB drive again 0.168
And I read the content of the test FS 0.481
Then patterns cover at least 99% of the test FS size in the guest's memory 2.067 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.419
Then I find very few patterns in the guest's memory after 3 seconds 4.854 
Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)
After features/support/hooks.rb:335 1.042
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
55.966
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.497
And I prepare Tails for memory erasure tests 0.346
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 27.719
Then I find very few patterns in the guest's memory 1.737 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.497
Then patterns cover at least 99% of the test FS size in the guest's memory 1.817 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.529
Then I find very few patterns in the guest's memory after 3 seconds 4.714 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
# read cache
When I mount the USB drive again 3.719
And I read the content of the test FS 0.311
Then patterns cover at least 99% of the test FS size in the guest's memory 1.939 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.454
Then I find very few patterns in the guest's memory after 3 seconds 4.681 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
After features/support/hooks.rb:335 0.818
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
53.564
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails from DVD without network and logged in 6.536
And I prepare Tails for memory erasure tests 0.314
When I fill a 128 MiB file with a known pattern on the root filesystem 22.541
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.989
Then patterns cover at least 128 MiB in the guest's memory 1.630 
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 20.544 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
After features/support/hooks.rb:335 3.555
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
4:30.780
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:47.382
And I prepare Tails for memory erasure tests 0.300
When I fill a 128 MiB file with a known pattern on the persistent filesystem 22.118
When I trigger shutdown 0.007
Then I find very few patterns in the guest's memory after 20 seconds 20.972 
Pattern coverage: 0.000% (0 MiB out of 1512 MiB reference memory)
After features/support/hooks.rb:335 3.510
After features/support/hooks.rb:104 0.012