Project Number Date
test_Tails_ISO_stable 6051 11 Jan 2026, 11:48

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 11:49.165 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
42.844
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 7.531
And I prepare Tails for memory erasure tests 0.377
When I start a process allocating 128 MiB of memory with a known pattern 1.161
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 14.633 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.138
Then I find very few patterns in the guest's memory after 5 seconds 19.002 
Pattern coverage: 0.000% (0 MiB out of 1462 MiB reference memory)
After features/support/hooks.rb:331 0.991
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
54.371
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 7.696
And I prepare Tails for memory erasure tests 0.383
And I find very few patterns in the guest's memory 14.547 
Pattern coverage: 0.000% (0 MiB out of 1463 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 0.563
Then patterns cover at least 99% of the test FS size in the guest's memory 14.642 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.121
Then I find very few patterns in the guest's memory after 3 seconds 16.416 
Pattern coverage: 0.000% (0 MiB out of 1463 MiB reference memory)
After features/support/hooks.rb:331 0.936
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:37.945
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 7.584
And I prepare Tails for memory erasure tests 0.387
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.754
Then I find very few patterns in the guest's memory 14.031 
Pattern coverage: 0.000% (0 MiB out of 1467 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.053
Then patterns cover at least 75% of the test FS size in the guest's memory 16.535 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.208
Then I find very few patterns in the guest's memory after 3 seconds 17.395 
Pattern coverage: 0.000% (0 MiB out of 1467 MiB reference memory)
# read cache
When I mount the USB drive again 0.157
And I read the content of the test FS 0.476
Then patterns cover at least 99% of the test FS size in the guest's memory 14.572 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.162
Then I find very few patterns in the guest's memory after 3 seconds 18.626 
Pattern coverage: 0.000% (0 MiB out of 1467 MiB reference memory)
After features/support/hooks.rb:331 0.952
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:1.994
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 7.353
And I prepare Tails for memory erasure tests 0.430
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.865
Then I find very few patterns in the guest's memory 20.243 
Pattern coverage: 0.000% (0 MiB out of 1467 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.214
Then patterns cover at least 99% of the test FS size in the guest's memory 13.419 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.344
Then I find very few patterns in the guest's memory after 3 seconds 17.053 
Pattern coverage: 0.000% (0 MiB out of 1467 MiB reference memory)
# read cache
When I mount the USB drive again 2.508
And I read the content of the test FS 0.334
Then patterns cover at least 99% of the test FS size in the guest's memory 14.210 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.299
Then I find very few patterns in the guest's memory after 3 seconds 15.717 
Pattern coverage: 0.000% (0 MiB out of 1467 MiB reference memory)
After features/support/hooks.rb:331 1.025
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
50.020
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 7.817
And I prepare Tails for memory erasure tests 0.372
When I fill a 128 MiB file with a known pattern on the root filesystem 9.194
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 0.274
Then patterns cover at least 128 MiB in the guest's memory 9.591 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.010
Then I find very few patterns in the guest's memory after 20 seconds 22.760 
Pattern coverage: 0.000% (0 MiB out of 1460 MiB reference memory)
After features/support/hooks.rb:331 3.733
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
5:41.987
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 5:9.626
And I prepare Tails for memory erasure tests 0.406
When I fill a 128 MiB file with a known pattern on the persistent filesystem 8.924
When I trigger shutdown 0.009
Then I find very few patterns in the guest's memory after 20 seconds 23.019 
Pattern coverage: 0.000% (0 MiB out of 1511 MiB reference memory)
After features/support/hooks.rb:331 3.490
After features/support/hooks.rb:100 0.013