Project Number Date
test_Tails_ISO_devel 4293 25 Mar 2026, 14:09

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 7:28.445 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
17.921
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 6.541
And I prepare Tails for memory erasure tests 0.382
When I start a process allocating 128 MiB of memory with a known pattern 1.256
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.630 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.192
Then I find very few patterns in the guest's memory after 5 seconds 6.918 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
After features/support/hooks.rb:331 0.904
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
18.465
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 6.786
And I prepare Tails for memory erasure tests 0.459
And I find very few patterns in the guest's memory 1.954 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.811
Then patterns cover at least 99% of the test FS size in the guest's memory 2.106 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.404
Then I find very few patterns in the guest's memory after 3 seconds 4.943 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
After features/support/hooks.rb:331 0.990
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
33.671
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 6.682
And I prepare Tails for memory erasure tests 0.348
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.725
Then I find very few patterns in the guest's memory 2.166 
Pattern coverage: 0.000% (0 MiB out of 1499 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.234
Then patterns cover at least 75% of the test FS size in the guest's memory 2.304 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.797
Then I find very few patterns in the guest's memory after 3 seconds 4.927 
Pattern coverage: 0.000% (0 MiB out of 1499 MiB reference memory)
# read cache
When I mount the USB drive again 0.166
And I read the content of the test FS 0.623
Then patterns cover at least 99% of the test FS size in the guest's memory 2.184 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.387
Then I find very few patterns in the guest's memory after 3 seconds 5.125 
Pattern coverage: 0.000% (0 MiB out of 1499 MiB reference memory)
After features/support/hooks.rb:331 0.637
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
59.457
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 7.129
And I prepare Tails for memory erasure tests 0.377
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.542
Then I find very few patterns in the guest's memory 1.929 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.268
Then patterns cover at least 99% of the test FS size in the guest's memory 2.172 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.683
Then I find very few patterns in the guest's memory after 3 seconds 4.824 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
# read cache
When I mount the USB drive again 3.885
And I read the content of the test FS 0.321
Then patterns cover at least 99% of the test FS size in the guest's memory 1.964 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.458
Then I find very few patterns in the guest's memory after 3 seconds 4.900 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
After features/support/hooks.rb:331 0.973
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
44.939
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 7.046
And I prepare Tails for memory erasure tests 0.353
When I fill a 128 MiB file with a known pattern on the root filesystem 13.157
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.087
Then patterns cover at least 128 MiB in the guest's memory 1.707 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.008
Then I find very few patterns in the guest's memory after 20 seconds 20.580 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
After features/support/hooks.rb:331 3.635
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:33.988
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:1.161
And I prepare Tails for memory erasure tests 0.398
When I fill a 128 MiB file with a known pattern on the persistent filesystem 11.346
When I trigger shutdown 0.007
Then I find very few patterns in the guest's memory after 20 seconds 21.073 
Pattern coverage: 0.000% (0 MiB out of 1506 MiB reference memory)
After features/support/hooks.rb:331 3.862
After features/support/hooks.rb:100 0.013