Project Number Date
test_Tails_ISO_stable 6473 27 Jun 2026, 11:33

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 7:47.678 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
17.110
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 6.687
And I prepare Tails for memory erasure tests 0.452
When I start a process allocating 128 MiB of memory with a known pattern 1.176
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.886 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.206
Then I find very few patterns in the guest's memory after 5 seconds 6.701 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
After features/support/hooks.rb:339 0.635
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
16.942
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 6.530
And I prepare Tails for memory erasure tests 0.415
And I find very few patterns in the guest's memory 1.684 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.482
Then patterns cover at least 99% of the test FS size in the guest's memory 1.911 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.305
Then I find very few patterns in the guest's memory after 3 seconds 4.611 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
After features/support/hooks.rb:339 0.997
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
31.805
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 6.716
And I prepare Tails for memory erasure tests 0.544
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.110
Then I find very few patterns in the guest's memory 1.773 
Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.509
Then patterns cover at least 75% of the test FS size in the guest's memory 1.883 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.651
Then I find very few patterns in the guest's memory after 3 seconds 4.753 
Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)
# read cache
When I mount the USB drive again 0.135
And I read the content of the test FS 0.411
Then patterns cover at least 99% of the test FS size in the guest's memory 2.140 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.405
Then I find very few patterns in the guest's memory after 3 seconds 4.769 
Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)
After features/support/hooks.rb:339 1.043
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
54.771
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 6.410
And I prepare Tails for memory erasure tests 0.355
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 27.265
Then I find very few patterns in the guest's memory 1.732 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.160
Then patterns cover at least 99% of the test FS size in the guest's memory 1.758 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.506
Then I find very few patterns in the guest's memory after 3 seconds 4.617 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
# read cache
When I mount the USB drive again 3.779
And I read the content of the test FS 0.318
Then patterns cover at least 99% of the test FS size in the guest's memory 1.767 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.422
Then I find very few patterns in the guest's memory after 3 seconds 4.676 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
After features/support/hooks.rb:339 1.046
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:6.365
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 6.513
And I prepare Tails for memory erasure tests 0.458
When I fill a 128 MiB file with a known pattern on the root filesystem 35.407
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.019
Then patterns cover at least 128 MiB in the guest's memory 1.467 
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 20.494 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
After features/support/hooks.rb:339 3.727
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:40.682
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 3:53.012
And I prepare Tails for memory erasure tests 0.323
When I fill a 128 MiB file with a known pattern on the persistent filesystem 26.484
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.857 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
After features/support/hooks.rb:339 3.567
After features/support/hooks.rb:108 0.012