Project Number Date
test_Tails_ISO_devel 4323 06 Apr 2026, 18:22

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 7:27.664 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
17.877
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 6.631
And I prepare Tails for memory erasure tests 0.491
When I start a process allocating 128 MiB of memory with a known pattern 1.159
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.055 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.792
Then I find very few patterns in the guest's memory after 5 seconds 6.746 
Pattern coverage: 0.000% (0 MiB out of 1524 MiB reference memory)
After features/support/hooks.rb:331 0.982
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
17.926
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 6.760
And I prepare Tails for memory erasure tests 0.372
And I find very few patterns in the guest's memory 1.916 
Pattern coverage: 0.000% (0 MiB out of 1533 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.360
Then patterns cover at least 99% of the test FS size in the guest's memory 2.321 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.321
Then I find very few patterns in the guest's memory after 3 seconds 4.872 
Pattern coverage: 0.000% (0 MiB out of 1533 MiB reference memory)
After features/support/hooks.rb:331 1.091
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
32.007
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 6.788
And I prepare Tails for memory erasure tests 0.361
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.515
Then I find very few patterns in the guest's memory 2.024 
Pattern coverage: 0.000% (0 MiB out of 1523 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.307
Then patterns cover at least 75% of the test FS size in the guest's memory 2.023 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.756
Then I find very few patterns in the guest's memory after 3 seconds 4.662 
Pattern coverage: 0.000% (0 MiB out of 1523 MiB reference memory)
# read cache
When I mount the USB drive again 0.148
And I read the content of the test FS 0.390
Then patterns cover at least 99% of the test FS size in the guest's memory 1.898 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.374
Then I find very few patterns in the guest's memory after 3 seconds 4.756 
Pattern coverage: 0.000% (0 MiB out of 1523 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
58.867
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 6.831
And I prepare Tails for memory erasure tests 0.402
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 30.112
Then I find very few patterns in the guest's memory 2.064 
Pattern coverage: 0.000% (0 MiB out of 1526 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.291
Then patterns cover at least 99% of the test FS size in the guest's memory 1.936 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.588
Then I find very few patterns in the guest's memory after 3 seconds 4.803 
Pattern coverage: 0.000% (0 MiB out of 1526 MiB reference memory)
# read cache
When I mount the USB drive again 3.638
And I read the content of the test FS 0.300
Then patterns cover at least 99% of the test FS size in the guest's memory 1.730 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.501
Then I find very few patterns in the guest's memory after 3 seconds 4.664 
Pattern coverage: 0.000% (0 MiB out of 1526 MiB reference memory)
After features/support/hooks.rb:331 1.094
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
44.438
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 7.138
And I prepare Tails for memory erasure tests 0.430
When I fill a 128 MiB file with a known pattern on the root filesystem 12.316
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.312
Then patterns cover at least 128 MiB in the guest's memory 1.607 
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 20.627 
Pattern coverage: 0.000% (0 MiB out of 1525 MiB reference memory)
After features/support/hooks.rb:331 3.738
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:36.546
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 4:3.681
And I prepare Tails for memory erasure tests 0.343
When I fill a 128 MiB file with a known pattern on the persistent filesystem 11.242
When I trigger shutdown 0.011
Then I find very few patterns in the guest's memory after 20 seconds 21.267 
Pattern coverage: 0.000% (0 MiB out of 1502 MiB reference memory)
After features/support/hooks.rb:331 3.881
After features/support/hooks.rb:100 0.010