Project Number Date
test_Tails_ISO_stable 6358 07 May 2026, 18:37

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 7:8.790 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
18.002
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 6.599
And I prepare Tails for memory erasure tests 0.342
When I start a process allocating 128 MiB of memory with a known pattern 2.263
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.911 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.205
Then I find very few patterns in the guest's memory after 5 seconds 6.680 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
After features/support/hooks.rb:331 0.750
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
17.185
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.004
Given I have started Tails from DVD without network and logged in 6.414
And I prepare Tails for memory erasure tests 0.340
And I find very few patterns in the guest's memory 1.679 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.643
Then patterns cover at least 99% of the test FS size in the guest's memory 1.962 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.298
Then I find very few patterns in the guest's memory after 3 seconds 4.847 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
After features/support/hooks.rb:331 1.052
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
31.798
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 6.453
And I prepare Tails for memory erasure tests 0.387
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.349
Then I find very few patterns in the guest's memory 1.934 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.482
Then patterns cover at least 75% of the test FS size in the guest's memory 2.015 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.650
Then I find very few patterns in the guest's memory after 3 seconds 4.743 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
# read cache
When I mount the USB drive again 0.145
And I read the content of the test FS 0.471
Then patterns cover at least 99% of the test FS size in the guest's memory 2.055 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.396
Then I find very few patterns in the guest's memory after 3 seconds 4.714 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
After features/support/hooks.rb:331 0.998
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
55.204
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 6.541
And I prepare Tails for memory erasure tests 0.338
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 27.576
Then I find very few patterns in the guest's memory 1.615 
Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.343
Then patterns cover at least 99% of the test FS size in the guest's memory 1.930 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.496
Then I find very few patterns in the guest's memory after 3 seconds 4.593 
Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)
# read cache
When I mount the USB drive again 3.524
And I read the content of the test FS 0.287
Then patterns cover at least 99% of the test FS size in the guest's memory 1.811 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.436
Then I find very few patterns in the guest's memory after 3 seconds 4.707 
Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)
After features/support/hooks.rb:331 0.573
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
53.818
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 6.428
And I prepare Tails for memory erasure tests 0.347
When I fill a 128 MiB file with a known pattern on the root filesystem 22.632
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.232
Then patterns cover at least 128 MiB in the guest's memory 1.648 
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 20.523 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
After features/support/hooks.rb:331 3.725
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:12.781
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 3:35.515
And I prepare Tails for memory erasure tests 0.269
When I fill a 128 MiB file with a known pattern on the persistent filesystem 16.069
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.921 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
After features/support/hooks.rb:331 3.457
After features/support/hooks.rb:100 0.008