Project Number Date
test_Tails_ISO_stable 5924 01 Nov 2025, 11:59

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 11:42.732 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
34.781
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 8.693
And I prepare Tails for memory erasure tests 0.425
When I start a process allocating 128 MiB of memory with a known pattern 1.189
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 10.246 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.363
Then I find very few patterns in the guest's memory after 5 seconds 13.863 
Pattern coverage: 0.000% (0 MiB out of 1496 MiB reference memory)
After features/support/hooks.rb:331 1.060
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
42.267
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 8.160
And I prepare Tails for memory erasure tests 0.513
And I find very few patterns in the guest's memory 9.697 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.640
Then patterns cover at least 99% of the test FS size in the guest's memory 9.909 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.423
Then I find very few patterns in the guest's memory after 3 seconds 11.923 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
After features/support/hooks.rb:331 1.132
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:16.076
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.004
Given I have started Tails from DVD without network and logged in 8.773
And I prepare Tails for memory erasure tests 0.401
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.786
Then I find very few patterns in the guest's memory 9.800 
Pattern coverage: 0.000% (0 MiB out of 1498 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.648
Then patterns cover at least 75% of the test FS size in the guest's memory 10.810 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.968
Then I find very few patterns in the guest's memory after 3 seconds 12.371 
Pattern coverage: 0.000% (0 MiB out of 1498 MiB reference memory)
# read cache
When I mount the USB drive again 0.237
And I read the content of the test FS 0.651
Then patterns cover at least 99% of the test FS size in the guest's memory 9.832 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.526
Then I find very few patterns in the guest's memory after 3 seconds 12.267 
Pattern coverage: 0.000% (0 MiB out of 1498 MiB reference memory)
After features/support/hooks.rb:331 0.878
After features/support/hooks.rb:100 0.001
Tags: @product @slow @not_release_blocker
1:38.984
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 8.525
And I prepare Tails for memory erasure tests 0.413
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 30.902
Then I find very few patterns in the guest's memory 9.093 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.735
Then patterns cover at least 99% of the test FS size in the guest's memory 9.071 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.793
Then I find very few patterns in the guest's memory after 3 seconds 11.879 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
# read cache
When I mount the USB drive again 4.764
And I read the content of the test FS 0.512
Then patterns cover at least 99% of the test FS size in the guest's memory 8.989 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.647
Then I find very few patterns in the guest's memory after 3 seconds 11.656 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
After features/support/hooks.rb:331 0.953
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
51.030
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 8.463
And I prepare Tails for memory erasure tests 0.482
When I fill a 128 MiB file with a known pattern on the root filesystem 9.854
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.928
Then patterns cover at least 128 MiB in the guest's memory 7.031 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.019
Then I find very few patterns in the guest's memory after 20 seconds 22.251 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
After features/support/hooks.rb:331 3.720
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
6:39.590
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 6:7.591
And I prepare Tails for memory erasure tests 0.395
When I fill a 128 MiB file with a known pattern on the persistent filesystem 8.859
When I trigger shutdown 0.010
Then I find very few patterns in the guest's memory after 20 seconds 22.733 
Pattern coverage: 0.000% (0 MiB out of 1444 MiB reference memory)
After features/support/hooks.rb:331 3.996
After features/support/hooks.rb:100 0.015