Project Number Date
test_Tails_ISO_devel 4316 03 Apr 2026, 11:32

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 7:37.186 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
18.397
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 6.611
And I prepare Tails for memory erasure tests 0.521
When I start a process allocating 128 MiB of memory with a known pattern 1.362
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.325 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.755
Then I find very few patterns in the guest's memory after 5 seconds 6.820 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
After features/support/hooks.rb:331 0.985
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
18.041
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 6.729
And I prepare Tails for memory erasure tests 0.462
And I find very few patterns in the guest's memory 1.972 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.690
Then patterns cover at least 99% of the test FS size in the guest's memory 2.105 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.334
Then I find very few patterns in the guest's memory after 3 seconds 4.746 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
After features/support/hooks.rb:331 0.859
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
34.122
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 6.823
And I prepare Tails for memory erasure tests 0.475
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.548
Then I find very few patterns in the guest's memory 2.151 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.824
Then patterns cover at least 75% of the test FS size in the guest's memory 2.203 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.866
Then I find very few patterns in the guest's memory after 3 seconds 4.996 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
# read cache
When I mount the USB drive again 0.196
And I read the content of the test FS 0.438
Then patterns cover at least 99% of the test FS size in the guest's memory 2.159 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.400
Then I find very few patterns in the guest's memory after 3 seconds 5.039 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
After features/support/hooks.rb:331 0.914
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:4.610
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 6.600
And I prepare Tails for memory erasure tests 0.655
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 34.615
Then I find very few patterns in the guest's memory 1.755 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.899
Then patterns cover at least 99% of the test FS size in the guest's memory 1.860 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.586
Then I find very few patterns in the guest's memory after 3 seconds 4.810 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
# read cache
When I mount the USB drive again 4.286
And I read the content of the test FS 0.375
Then patterns cover at least 99% of the test FS size in the guest's memory 1.926 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.494
Then I find very few patterns in the guest's memory after 3 seconds 4.742 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
After features/support/hooks.rb:331 0.829
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
46.916
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 6.710
And I prepare Tails for memory erasure tests 0.615
When I fill a 128 MiB file with a known pattern on the root filesystem 13.516
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 3.814
Then patterns cover at least 128 MiB in the guest's memory 1.618 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.009
Then I find very few patterns in the guest's memory after 20 seconds 20.631 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:331 3.715
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:35.098
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 4:1.940
And I prepare Tails for memory erasure tests 0.359
When I fill a 128 MiB file with a known pattern on the persistent filesystem 11.601
When I trigger shutdown 0.016
Then I find very few patterns in the guest's memory after 20 seconds 21.180 
Pattern coverage: 0.000% (0 MiB out of 1523 MiB reference memory)
After features/support/hooks.rb:331 3.687
After features/support/hooks.rb:100 0.041