Project Number Date
test_Tails_ISO_stable 6122 05 Feb 2026, 13:39

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 7:36.360 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
19.791
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 6.772
And I prepare Tails for memory erasure tests 0.487
When I start a process allocating 128 MiB of memory with a known pattern 2.264
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.357 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 1.006
Then I find very few patterns in the guest's memory after 5 seconds 6.904 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
After features/support/hooks.rb:331 1.087
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
19.906
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 6.984
And I prepare Tails for memory erasure tests 0.377
And I find very few patterns in the guest's memory 2.050 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.269
Then patterns cover at least 99% of the test FS size in the guest's memory 2.256 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.924
Then I find very few patterns in the guest's memory after 3 seconds 5.043 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
After features/support/hooks.rb:331 0.949
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
34.399
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 6.788
And I prepare Tails for memory erasure tests 0.474
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.475
Then I find very few patterns in the guest's memory 2.135 
Pattern coverage: 0.000% (0 MiB out of 1498 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.995
Then patterns cover at least 75% of the test FS size in the guest's memory 2.337 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.045
Then I find very few patterns in the guest's memory after 3 seconds 4.967 
Pattern coverage: 0.000% (0 MiB out of 1498 MiB reference memory)
# read cache
When I mount the USB drive again 0.163
And I read the content of the test FS 0.468
Then patterns cover at least 99% of the test FS size in the guest's memory 2.196 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.288
Then I find very few patterns in the guest's memory after 3 seconds 5.063 
Pattern coverage: 0.000% (0 MiB out of 1498 MiB reference memory)
After features/support/hooks.rb:331 0.946
After features/support/hooks.rb:100 0.005
Tags: @product @slow @not_release_blocker
56.503
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 6.864
And I prepare Tails for memory erasure tests 0.413
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 26.922
Then I find very few patterns in the guest's memory 2.330 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.100
Then patterns cover at least 99% of the test FS size in the guest's memory 2.232 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.577
Then I find very few patterns in the guest's memory after 3 seconds 4.813 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
# read cache
When I mount the USB drive again 3.495
And I read the content of the test FS 0.313
Then patterns cover at least 99% of the test FS size in the guest's memory 1.914 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.451
Then I find very few patterns in the guest's memory after 3 seconds 5.072 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
After features/support/hooks.rb:331 0.870
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
46.146
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.010
Given I have started Tails from DVD without network and logged in 6.912
And I prepare Tails for memory erasure tests 0.490
When I fill a 128 MiB file with a known pattern on the root filesystem 14.473
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.880
Then patterns cover at least 128 MiB in the guest's memory 1.792 
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 20.591 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
After features/support/hooks.rb:331 3.468
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:39.613
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 4:8.120
And I prepare Tails for memory erasure tests 0.379
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.201
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.906 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
After features/support/hooks.rb:331 3.750
After features/support/hooks.rb:100 0.009