Project Number Date
test_Tails_ISO_stable 6166 24 Feb 2026, 22:39

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 7:46.662 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
20.271
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 7.746
And I prepare Tails for memory erasure tests 0.385
When I start a process allocating 128 MiB of memory with a known pattern 2.307
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.397 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.292
Then I find very few patterns in the guest's memory after 5 seconds 7.141 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
After features/support/hooks.rb:331 1.288
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
20.336
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 7.401
And I prepare Tails for memory erasure tests 0.392
And I find very few patterns in the guest's memory 1.975 
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 2.342
Then patterns cover at least 99% of the test FS size in the guest's memory 2.145 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.821
Then I find very few patterns in the guest's memory after 3 seconds 5.255 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
After features/support/hooks.rb:331 1.135
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
35.723
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 7.514
And I prepare Tails for memory erasure tests 0.447
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.323
Then I find very few patterns in the guest's memory 2.197 
Pattern coverage: 0.000% (0 MiB out of 1504 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.768
Then patterns cover at least 75% of the test FS size in the guest's memory 3.056 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.440
Then I find very few patterns in the guest's memory after 3 seconds 5.131 
Pattern coverage: 0.000% (0 MiB out of 1504 MiB reference memory)
# read cache
When I mount the USB drive again 0.267
And I read the content of the test FS 0.420
Then patterns cover at least 99% of the test FS size in the guest's memory 1.961 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.270
Then I find very few patterns in the guest's memory after 3 seconds 4.921 
Pattern coverage: 0.000% (0 MiB out of 1504 MiB reference memory)
After features/support/hooks.rb:331 1.462
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:6.012
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 7.663
And I prepare Tails for memory erasure tests 0.464
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 30.693
Then I find very few patterns in the guest's memory 1.850 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.572
Then patterns cover at least 99% of the test FS size in the guest's memory 2.028 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.558
Then I find very few patterns in the guest's memory after 3 seconds 5.150 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
# read cache
When I mount the USB drive again 8.238
And I read the content of the test FS 0.297
Then patterns cover at least 99% of the test FS size in the guest's memory 1.905 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.639
Then I find very few patterns in the guest's memory after 3 seconds 4.948 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
After features/support/hooks.rb:331 1.083
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
46.004
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 7.599
And I prepare Tails for memory erasure tests 0.366
When I fill a 128 MiB file with a known pattern on the root filesystem 13.810
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.048
Then patterns cover at least 128 MiB in the guest's memory 1.652 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.521 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
After features/support/hooks.rb:331 3.594
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:38.314
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 4:5.473
And I prepare Tails for memory erasure tests 0.382
When I fill a 128 MiB file with a known pattern on the persistent filesystem 11.504
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.948 
Pattern coverage: 0.000% (0 MiB out of 1520 MiB reference memory)
After features/support/hooks.rb:331 3.503
After features/support/hooks.rb:100 0.010