Project Number Date
test_Tails_ISO_stable 6718 02 Oct 2026, 11:32

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 7:38.894 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
20.309
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.291
And I prepare Tails for memory erasure tests 0.340
When I start a process allocating 128 MiB of memory with a known pattern 2.210
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 3.080 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.222
Then I find very few patterns in the guest's memory after 5 seconds 8.163 
Pattern coverage: 0.000% (0 MiB out of 1391 MiB reference memory)
After features/support/hooks.rb:339 0.956
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
19.717
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.275
And I prepare Tails for memory erasure tests 0.312
And I find very few patterns in the guest's memory 2.830 
Pattern coverage: 0.000% (0 MiB out of 1385 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.422
Then patterns cover at least 99% of the test FS size in the guest's memory 2.851 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.329
Then I find very few patterns in the guest's memory after 3 seconds 5.695 
Pattern coverage: 0.000% (0 MiB out of 1385 MiB reference memory)
After features/support/hooks.rb:339 1.095
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
36.548
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.481
And I prepare Tails for memory erasure tests 0.330
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.329
Then I find very few patterns in the guest's memory 2.632 
Pattern coverage: 0.000% (0 MiB out of 1387 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.478
Then patterns cover at least 75% of the test FS size in the guest's memory 3.121 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.712
Then I find very few patterns in the guest's memory after 3 seconds 5.727 
Pattern coverage: 0.000% (0 MiB out of 1387 MiB reference memory)
# read cache
When I mount the USB drive again 0.166
And I read the content of the test FS 0.599
Then patterns cover at least 99% of the test FS size in the guest's memory 2.916 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.410
Then I find very few patterns in the guest's memory after 3 seconds 5.641 
Pattern coverage: 0.000% (0 MiB out of 1387 MiB reference memory)
After features/support/hooks.rb:339 0.671
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:20.304
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 17.989
And I prepare Tails for memory erasure tests 0.273
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.428
Then I find very few patterns in the guest's memory 2.784 
Pattern coverage: 0.000% (0 MiB out of 1394 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 2.678 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.542
Then I find very few patterns in the guest's memory after 3 seconds 6.461 
Pattern coverage: 0.000% (0 MiB out of 1394 MiB reference memory)
# read cache
When I mount the USB drive again 3.803
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 5.892 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.477
Then I find very few patterns in the guest's memory after 3 seconds 8.234 
Pattern coverage: 0.000% (0 MiB out of 1394 MiB reference memory)
After features/support/hooks.rb:339 1.007
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
45.510
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.337
And I prepare Tails for memory erasure tests 0.352
When I fill a 128 MiB file with a known pattern on the root filesystem 13.266
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.544
Then patterns cover at least 128 MiB in the guest's memory 2.953 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.051 
Pattern coverage: 0.000% (0 MiB out of 1374 MiB reference memory)
After features/support/hooks.rb:339 3.498
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:16.504
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.005
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:45.639
And I prepare Tails for memory erasure tests 0.245
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.317
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.295 
Pattern coverage: 0.000% (0 MiB out of 1437 MiB reference memory)
After features/support/hooks.rb:339 3.694
After features/support/hooks.rb:108 0.058