Project Number Date
test_Tails_ISO_devel 4058 06 Nov 2025, 14:01

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 14:39.896 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
46.301
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 8.799
And I prepare Tails for memory erasure tests 0.484
When I start a process allocating 128 MiB of memory with a known pattern 2.320
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 15.208 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.260
Then I find very few patterns in the guest's memory after 5 seconds 19.227 
Pattern coverage: 0.000% (0 MiB out of 1509 MiB reference memory)
After features/support/hooks.rb:331 1.383
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
58.496
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 8.496
And I prepare Tails for memory erasure tests 0.419
And I find very few patterns in the guest's memory 13.958 
Pattern coverage: 0.000% (0 MiB out of 1500 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.669
Then patterns cover at least 99% of the test FS size in the guest's memory 15.190 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.460
Then I find very few patterns in the guest's memory after 3 seconds 18.302 
Pattern coverage: 0.000% (0 MiB out of 1500 MiB reference memory)
After features/support/hooks.rb:331 0.988
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:41.760
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 0.410
When I plug and mount a 128 MiB USB drive with a vfat filesystem 7.930
Then I find very few patterns in the guest's memory 14.078 
Pattern coverage: 0.000% (0 MiB out of 1505 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.600
Then patterns cover at least 75% of the test FS size in the guest's memory 16.766 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.912
Then I find very few patterns in the guest's memory after 3 seconds 17.062 
Pattern coverage: 0.000% (0 MiB out of 1505 MiB reference memory)
# read cache
When I mount the USB drive again 0.278
And I read the content of the test FS 0.633
Then patterns cover at least 99% of the test FS size in the guest's memory 15.071 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.537
Then I find very few patterns in the guest's memory after 3 seconds 16.782 
Pattern coverage: 0.000% (0 MiB out of 1505 MiB reference memory)
After features/support/hooks.rb:331 0.670
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:13.511
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 8.689
And I prepare Tails for memory erasure tests 0.439
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 38.202
Then I find very few patterns in the guest's memory 12.945 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.829
Then patterns cover at least 99% of the test FS size in the guest's memory 15.726 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.739
Then I find very few patterns in the guest's memory after 3 seconds 17.030 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
# read cache
When I mount the USB drive again 5.309
And I read the content of the test FS 0.525
Then patterns cover at least 99% of the test FS size in the guest's memory 14.760 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.608
Then I find very few patterns in the guest's memory after 3 seconds 16.704 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
After features/support/hooks.rb:331 1.162
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
58.675
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 8.550
And I prepare Tails for memory erasure tests 0.386
When I fill a 128 MiB file with a known pattern on the root filesystem 11.045
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.849
Then patterns cover at least 128 MiB in the guest's memory 11.933 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.011
Then I find very few patterns in the guest's memory after 20 seconds 23.900 
Pattern coverage: 0.000% (0 MiB out of 1510 MiB reference memory)
After features/support/hooks.rb:331 4.840
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
8:1.149
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.010
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 7:27.700
And I prepare Tails for memory erasure tests 0.426
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.403
When I trigger shutdown 0.010
Then I find very few patterns in the guest's memory after 20 seconds 23.608 
Pattern coverage: 0.000% (0 MiB out of 1537 MiB reference memory)
After features/support/hooks.rb:331 3.611
After features/support/hooks.rb:100 0.017