Project Number Date
test_Tails_ISO_devel 4186 23 Jan 2026, 11:42

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 8:31.429 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
18.303
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 6.561
And I prepare Tails for memory erasure tests 0.395
When I start a process allocating 128 MiB of memory with a known pattern 2.371
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.024 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.221
Then I find very few patterns in the guest's memory after 5 seconds 6.728 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
After features/support/hooks.rb:331 1.031
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
19.106
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 6.500
And I prepare Tails for memory erasure tests 0.470
And I find very few patterns in the guest's memory 1.910 
Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.629
Then patterns cover at least 99% of the test FS size in the guest's memory 1.959 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.894
Then I find very few patterns in the guest's memory after 3 seconds 4.740 
Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)
After features/support/hooks.rb:331 0.704
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
33.954
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 6.504
And I prepare Tails for memory erasure tests 0.449
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.438
Then I find very few patterns in the guest's memory 1.799 
Pattern coverage: 0.000% (0 MiB out of 1467 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 3.227
Then patterns cover at least 75% of the test FS size in the guest's memory 1.962 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.932
Then I find very few patterns in the guest's memory after 3 seconds 4.703 
Pattern coverage: 0.000% (0 MiB out of 1467 MiB reference memory)
# read cache
When I mount the USB drive again 0.168
And I read the content of the test FS 0.508
Then patterns cover at least 99% of the test FS size in the guest's memory 2.034 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.488
Then I find very few patterns in the guest's memory after 3 seconds 4.736 
Pattern coverage: 0.000% (0 MiB out of 1467 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
1:7.200
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.011
Given I have started Tails from DVD without network and logged in 6.508
And I prepare Tails for memory erasure tests 0.481
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 31.881
Then I find very few patterns in the guest's memory 1.655 
Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.765
Then patterns cover at least 99% of the test FS size in the guest's memory 1.695 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.670
Then I find very few patterns in the guest's memory after 3 seconds 4.547 
Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)
# read cache
When I mount the USB drive again 10.747
And I read the content of the test FS 0.258
Then patterns cover at least 99% of the test FS size in the guest's memory 1.871 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.564
Then I find very few patterns in the guest's memory after 3 seconds 4.551 
Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)
After features/support/hooks.rb:331 0.709
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
44.543
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 6.723
And I prepare Tails for memory erasure tests 0.459
When I fill a 128 MiB file with a known pattern on the root filesystem 13.343
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.947
Then patterns cover at least 128 MiB in the guest's memory 1.552 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.512 
Pattern coverage: 0.000% (0 MiB out of 1467 MiB reference memory)
After features/support/hooks.rb:331 3.546
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
5:28.320
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:56.342
And I prepare Tails for memory erasure tests 0.341
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.774
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.856 
Pattern coverage: 0.000% (0 MiB out of 1543 MiB reference memory)
After features/support/hooks.rb:331 3.538
After features/support/hooks.rb:100 0.009