Project Number Date
test_Tails_ISO_stable 6084 22 Jan 2026, 12:30

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 13:37.838 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
47.857
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 9.011
And I prepare Tails for memory erasure tests 0.423
When I start a process allocating 128 MiB of memory with a known pattern 2.306
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 15.598 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 1.337
Then I find very few patterns in the guest's memory after 5 seconds 19.179 
Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)
After features/support/hooks.rb:331 1.310
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:6.091
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 9.424
And I prepare Tails for memory erasure tests 0.485
And I find very few patterns in the guest's memory 15.397 
Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 4.002
Then patterns cover at least 99% of the test FS size in the guest's memory 15.760 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 1.460
Then I find very few patterns in the guest's memory after 3 seconds 19.560 
Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)
After features/support/hooks.rb:331 1.702
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:49.667
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.006
Given I have started Tails from DVD without network and logged in 9.053
And I prepare Tails for memory erasure tests 0.403
When I plug and mount a 128 MiB USB drive with a vfat filesystem 7.703
Then I find very few patterns in the guest's memory 18.241 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 4.599
Then patterns cover at least 75% of the test FS size in the guest's memory 16.775 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.442
Then I find very few patterns in the guest's memory after 3 seconds 17.951 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
# read cache
When I mount the USB drive again 0.260
And I read the content of the test FS 0.687
Then patterns cover at least 99% of the test FS size in the guest's memory 15.354 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.317
Then I find very few patterns in the guest's memory after 3 seconds 16.878 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
After features/support/hooks.rb:331 1.084
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:11.966
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 8.900
And I prepare Tails for memory erasure tests 0.440
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 31.706
Then I find very few patterns in the guest's memory 16.212 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.943
Then patterns cover at least 99% of the test FS size in the guest's memory 15.380 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.759
Then I find very few patterns in the guest's memory after 3 seconds 17.367 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
# read cache
When I mount the USB drive again 5.243
And I read the content of the test FS 0.443
Then patterns cover at least 99% of the test FS size in the guest's memory 14.215 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.614
Then I find very few patterns in the guest's memory after 3 seconds 18.738 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
After features/support/hooks.rb:331 1.148
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
59.495
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 9.060
And I prepare Tails for memory erasure tests 0.453
When I fill a 128 MiB file with a known pattern on the root filesystem 13.585
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.324
Then patterns cover at least 128 MiB in the guest's memory 11.022 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.011
Then I find very few patterns in the guest's memory after 20 seconds 23.036 
Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)
After features/support/hooks.rb:331 3.784
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
6:42.761
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 6:8.187
And I prepare Tails for memory erasure tests 0.475
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.294
When I trigger shutdown 0.009
Then I find very few patterns in the guest's memory after 20 seconds 23.794 
Pattern coverage: 0.000% (0 MiB out of 1496 MiB reference memory)
After features/support/hooks.rb:331 3.651
After features/support/hooks.rb:100 0.015