Project Number Date
test_Tails_ISO_devel 4362 23 Apr 2026, 13:37

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 7:38.780 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
19.077
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 6.936
And I prepare Tails for memory erasure tests 0.425
When I start a process allocating 128 MiB of memory with a known pattern 2.333
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.213 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.233
Then I find very few patterns in the guest's memory after 5 seconds 6.934 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:331 0.862
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
18.235
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 6.832
And I prepare Tails for memory erasure tests 0.378
And I find very few patterns in the guest's memory 1.925 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.673
Then patterns cover at least 99% of the test FS size in the guest's memory 2.061 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.326
Then I find very few patterns in the guest's memory after 3 seconds 5.038 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
After features/support/hooks.rb:331 1.115
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
33.329
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 6.968
And I prepare Tails for memory erasure tests 0.415
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.459
Then I find very few patterns in the guest's memory 1.951 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.572
Then patterns cover at least 75% of the test FS size in the guest's memory 2.319 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.781
Then I find very few patterns in the guest's memory after 3 seconds 4.765 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
# read cache
When I mount the USB drive again 0.237
And I read the content of the test FS 0.441
Then patterns cover at least 99% of the test FS size in the guest's memory 2.092 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.408
Then I find very few patterns in the guest's memory after 3 seconds 4.915 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
After features/support/hooks.rb:331 1.075
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:10.064
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 7.209
And I prepare Tails for memory erasure tests 0.403
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 34.746
Then I find very few patterns in the guest's memory 1.844 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.903
Then patterns cover at least 99% of the test FS size in the guest's memory 2.095 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.634
Then I find very few patterns in the guest's memory after 3 seconds 4.645 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
# read cache
When I mount the USB drive again 8.997
And I read the content of the test FS 0.323
Then patterns cover at least 99% of the test FS size in the guest's memory 1.931 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.531
Then I find very few patterns in the guest's memory after 3 seconds 4.796 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:331 0.878
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
44.859
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 6.679
And I prepare Tails for memory erasure tests 0.403
When I fill a 128 MiB file with a known pattern on the root filesystem 13.805
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.906
Then patterns cover at least 128 MiB in the guest's memory 1.503 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.556 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
After features/support/hooks.rb:331 3.940
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:33.212
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.011
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:0.296
And I prepare Tails for memory erasure tests 0.485
When I fill a 128 MiB file with a known pattern on the persistent filesystem 11.479
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.945 
Pattern coverage: 0.000% (0 MiB out of 1509 MiB reference memory)
After features/support/hooks.rb:331 3.658
After features/support/hooks.rb:100 0.012