Project Number Date
test_Tails_ISO_stable 6616 31 Aug 2026, 11:35

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 7:48.827 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
20.311
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 6.471
And I prepare Tails for memory erasure tests 0.262
When I start a process allocating 128 MiB of memory with a known pattern 2.203
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 3.012 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.242
Then I find very few patterns in the guest's memory after 5 seconds 8.119 
Pattern coverage: 0.000% (0 MiB out of 1456 MiB reference memory)
After features/support/hooks.rb:339 0.982
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
20.877
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.893
And I prepare Tails for memory erasure tests 0.328
And I find very few patterns in the guest's memory 2.722 
Pattern coverage: 0.000% (0 MiB out of 1461 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.508
Then patterns cover at least 99% of the test FS size in the guest's memory 2.988 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.465
Then I find very few patterns in the guest's memory after 3 seconds 5.970 
Pattern coverage: 0.000% (0 MiB out of 1461 MiB reference memory)
After features/support/hooks.rb:339 0.922
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
50.164
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 18.341
And I prepare Tails for memory erasure tests 0.265
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.271
Then I find very few patterns in the guest's memory 2.853 
Pattern coverage: 0.000% (0 MiB out of 1460 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.771
Then patterns cover at least 75% of the test FS size in the guest's memory 3.290 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.754
Then I find very few patterns in the guest's memory after 3 seconds 6.418 
Pattern coverage: 0.000% (0 MiB out of 1460 MiB reference memory)
# read cache
When I mount the USB drive again 0.206
And I read the content of the test FS 0.735
Then patterns cover at least 99% of the test FS size in the guest's memory 3.130 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.375
Then I find very few patterns in the guest's memory after 3 seconds 5.750 
Pattern coverage: 0.000% (0 MiB out of 1460 MiB reference memory)
After features/support/hooks.rb:339 0.592
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:3.422
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.004
Given I have started Tails from DVD without network and logged in 6.775
And I prepare Tails for memory erasure tests 0.373
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.234
Then I find very few patterns in the guest's memory 2.820 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.028
Then patterns cover at least 99% of the test FS size in the guest's memory 3.156 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.544
Then I find very few patterns in the guest's memory after 3 seconds 5.786 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
# read cache
When I mount the USB drive again 3.648
And I read the content of the test FS 0.358
Then patterns cover at least 99% of the test FS size in the guest's memory 2.736 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.572
Then I find very few patterns in the guest's memory after 3 seconds 6.386 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
After features/support/hooks.rb:339 0.802
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
57.081
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 18.597
And I prepare Tails for memory erasure tests 0.387
When I fill a 128 MiB file with a known pattern on the root filesystem 13.082
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.603
Then patterns cover at least 128 MiB in the guest's memory 2.617 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.786 
Pattern coverage: 0.000% (0 MiB out of 1459 MiB reference memory)
After features/support/hooks.rb:339 3.455
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:16.970
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:44.539
And I prepare Tails for memory erasure tests 0.328
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.932
When I trigger shutdown 0.009
Then I find very few patterns in the guest's memory after 20 seconds 21.160 
Pattern coverage: 0.000% (0 MiB out of 1505 MiB reference memory)
After features/support/hooks.rb:339 3.644
After features/support/hooks.rb:108 0.020