Project Number Date
test_Tails_ISO_stable 6200 13 Mar 2026, 07:18

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 7:22.741 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
19.551
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.012
Given I have started Tails from DVD without network and logged in 6.702
And I prepare Tails for memory erasure tests 0.359
When I start a process allocating 128 MiB of memory with a known pattern 2.355
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.091 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 1.012
Then I find very few patterns in the guest's memory after 5 seconds 7.030 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
After features/support/hooks.rb:331 0.762
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
19.157
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 6.697
And I prepare Tails for memory erasure tests 0.352
And I find very few patterns in the guest's memory 1.987 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.286
Then patterns cover at least 99% of the test FS size in the guest's memory 2.084 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.793
Then I find very few patterns in the guest's memory after 3 seconds 4.955 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
After features/support/hooks.rb:331 0.742
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
34.131
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 6.604
And I prepare Tails for memory erasure tests 0.371
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.151
Then I find very few patterns in the guest's memory 2.031 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 3.406
Then patterns cover at least 75% of the test FS size in the guest's memory 2.231 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.451
Then I find very few patterns in the guest's memory after 3 seconds 4.968 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
# read cache
When I mount the USB drive again 0.178
And I read the content of the test FS 0.425
Then patterns cover at least 99% of the test FS size in the guest's memory 2.125 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.331
Then I find very few patterns in the guest's memory after 3 seconds 4.853 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
After features/support/hooks.rb:331 0.822
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:9.600
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 6.642
And I prepare Tails for memory erasure tests 0.350
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.557
Then I find very few patterns in the guest's memory 1.713 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.388
Then patterns cover at least 99% of the test FS size in the guest's memory 2.116 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.684
Then I find very few patterns in the guest's memory after 3 seconds 4.842 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
# read cache
When I mount the USB drive again 14.513
And I read the content of the test FS 0.302
Then patterns cover at least 99% of the test FS size in the guest's memory 2.065 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.567
Then I find very few patterns in the guest's memory after 3 seconds 4.855 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
After features/support/hooks.rb:331 0.932
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
44.568
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 6.561
And I prepare Tails for memory erasure tests 0.404
When I fill a 128 MiB file with a known pattern on the root filesystem 13.746
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.719
Then patterns cover at least 128 MiB in the guest's memory 1.603 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.007
Then I find very few patterns in the guest's memory after 20 seconds 20.523 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
After features/support/hooks.rb:331 3.522
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:15.732
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 3:44.419
And I prepare Tails for memory erasure tests 0.355
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.078
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.873 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
After features/support/hooks.rb:331 3.497
After features/support/hooks.rb:100 0.008