Project Number Date
test_Tails_ISO_devel 4545 13 Aug 2026, 11:16

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 7:26.391 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
19.695
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.006
Given I have started Tails from DVD without network and logged in 6.448
And I prepare Tails for memory erasure tests 0.307
When I start a process allocating 128 MiB of memory with a known pattern 2.188
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.842 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.182
Then I find very few patterns in the guest's memory after 5 seconds 7.726 
Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)
After features/support/hooks.rb:339 0.800
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
19.649
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 6.524
And I prepare Tails for memory erasure tests 0.378
And I find very few patterns in the guest's memory 2.567 
Pattern coverage: 0.000% (0 MiB out of 1467 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.338
Then patterns cover at least 99% of the test FS size in the guest's memory 2.814 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.375
Then I find very few patterns in the guest's memory after 3 seconds 5.650 
Pattern coverage: 0.000% (0 MiB out of 1467 MiB reference memory)
After features/support/hooks.rb:339 0.537
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
38.848
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 6.232
And I prepare Tails for memory erasure tests 0.298
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.397
Then I find very few patterns in the guest's memory 2.916 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.643
Then patterns cover at least 75% of the test FS size in the guest's memory 3.050 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.688
Then I find very few patterns in the guest's memory after 3 seconds 6.965 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
# read cache
When I mount the USB drive again 0.219
And I read the content of the test FS 0.567
Then patterns cover at least 99% of the test FS size in the guest's memory 3.632 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.445
Then I find very few patterns in the guest's memory after 3 seconds 5.790 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
After features/support/hooks.rb:339 0.872
After features/support/hooks.rb:108 0.007
Tags: @product @slow @not_release_blocker
1:2.191
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.007
Given I have started Tails from DVD without network and logged in 6.231
And I prepare Tails for memory erasure tests 0.310
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 30.718
Then I find very few patterns in the guest's memory 2.508 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 0.976
Then patterns cover at least 99% of the test FS size in the guest's memory 2.722 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.470
Then I find very few patterns in the guest's memory after 3 seconds 5.318 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
# read cache
When I mount the USB drive again 4.091
And I read the content of the test FS 0.403
Then patterns cover at least 99% of the test FS size in the guest's memory 2.799 
Pattern coverage: 106.115% (97 MiB out of 91 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 5.244 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
After features/support/hooks.rb:339 0.520
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
42.989
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 6.087
And I prepare Tails for memory erasure tests 0.278
When I fill a 128 MiB file with a known pattern on the root filesystem 12.491
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.338
Then patterns cover at least 128 MiB in the guest's memory 2.099 
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 20.688 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
After features/support/hooks.rb:339 3.534
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:23.018
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:51.501
And I prepare Tails for memory erasure tests 0.318
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.908
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.285 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
After features/support/hooks.rb:339 3.649
After features/support/hooks.rb:108 0.011