Project Number Date
test_Tails_ISO_21322-change-domain-deb.tails.boum.org 3 19 May 2026, 14:24

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 8:1.444 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
17.709
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.808
And I prepare Tails for memory erasure tests 0.344
When I start a process allocating 128 MiB of memory with a known pattern 1.218
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.006 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.166
Then I find very few patterns in the guest's memory after 5 seconds 7.164 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
After features/support/hooks.rb:335 1.111
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
18.252
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails from DVD without network and logged in 6.869
And I prepare Tails for memory erasure tests 0.468
And I find very few patterns in the guest's memory 1.744 
Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.512
Then patterns cover at least 99% of the test FS size in the guest's memory 1.905 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.278
Then I find very few patterns in the guest's memory after 3 seconds 5.472 
Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)
After features/support/hooks.rb:335 1.196
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
33.583
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.708
And I prepare Tails for memory erasure tests 0.389
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.291
Then I find very few patterns in the guest's memory 1.917 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.478
Then patterns cover at least 75% of the test FS size in the guest's memory 2.577 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.718
Then I find very few patterns in the guest's memory after 3 seconds 5.099 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
# read cache
When I mount the USB drive again 0.171
And I read the content of the test FS 0.528
Then patterns cover at least 99% of the test FS size in the guest's memory 2.301 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.437
Then I find very few patterns in the guest's memory after 3 seconds 4.963 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
After features/support/hooks.rb:335 0.774
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
59.307
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails from DVD without network and logged in 7.187
And I prepare Tails for memory erasure tests 0.524
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.818
Then I find very few patterns in the guest's memory 1.727 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.531
Then patterns cover at least 99% of the test FS size in the guest's memory 1.919 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.585
Then I find very few patterns in the guest's memory after 3 seconds 4.883 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
# read cache
When I mount the USB drive again 3.731
And I read the content of the test FS 0.328
Then patterns cover at least 99% of the test FS size in the guest's memory 1.917 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.438
Then I find very few patterns in the guest's memory after 3 seconds 4.713 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
After features/support/hooks.rb:335 1.033
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
1:8.090
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 19.298
And I prepare Tails for memory erasure tests 0.598
When I fill a 128 MiB file with a known pattern on the root filesystem 23.917
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.008
Then patterns cover at least 128 MiB in the guest's memory 1.725 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.007
Then I find very few patterns in the guest's memory after 20 seconds 20.534 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
After features/support/hooks.rb:335 3.511
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
4:44.501
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:4.188
And I prepare Tails for memory erasure tests 0.325
When I fill a 128 MiB file with a known pattern on the persistent filesystem 18.943
When I trigger shutdown 0.007
Then I find very few patterns in the guest's memory after 20 seconds 21.037 
Pattern coverage: 0.000% (0 MiB out of 1540 MiB reference memory)
After features/support/hooks.rb:335 3.765
After features/support/hooks.rb:104 0.010