Project Number Date
test_Tails_ISO_stable 6646 08 Sep 2026, 11:44

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 8:6.075 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
19.933
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.005
Given I have started Tails from DVD without network and logged in 6.405
And I prepare Tails for memory erasure tests 0.385
When I start a process allocating 128 MiB of memory with a known pattern 2.210
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.935 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.269
Then I find very few patterns in the guest's memory after 5 seconds 7.726 
Pattern coverage: 0.000% (0 MiB out of 1424 MiB reference memory)
After features/support/hooks.rb:339 0.805
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
20.496
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 6.412
And I prepare Tails for memory erasure tests 0.344
And I find very few patterns in the guest's memory 2.799 
Pattern coverage: 0.000% (0 MiB out of 1416 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.599
Then patterns cover at least 99% of the test FS size in the guest's memory 3.089 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.371
Then I find very few patterns in the guest's memory after 3 seconds 5.878 
Pattern coverage: 0.000% (0 MiB out of 1416 MiB reference memory)
After features/support/hooks.rb:339 0.747
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:1.288
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 30.215
And I prepare Tails for memory erasure tests 0.377
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.613
Then I find very few patterns in the guest's memory 2.828 
Pattern coverage: 0.000% (0 MiB out of 1410 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.635
Then patterns cover at least 75% of the test FS size in the guest's memory 3.085 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.658
Then I find very few patterns in the guest's memory after 3 seconds 5.821 
Pattern coverage: 0.000% (0 MiB out of 1410 MiB reference memory)
# read cache
When I mount the USB drive again 0.217
And I read the content of the test FS 0.596
Then patterns cover at least 99% of the test FS size in the guest's memory 3.113 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.439
Then I find very few patterns in the guest's memory after 3 seconds 5.685 
Pattern coverage: 0.000% (0 MiB out of 1410 MiB reference memory)
After features/support/hooks.rb:339 0.971
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:3.430
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 6.503
And I prepare Tails for memory erasure tests 0.389
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 31.193
Then I find very few patterns in the guest's memory 2.543 
Pattern coverage: 0.000% (0 MiB out of 1420 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.252
Then patterns cover at least 99% of the test FS size in the guest's memory 2.699 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.480
Then I find very few patterns in the guest's memory after 3 seconds 5.584 
Pattern coverage: 0.000% (0 MiB out of 1420 MiB reference memory)
# read cache
When I mount the USB drive again 3.754
And I read the content of the test FS 0.362
Then patterns cover at least 99% of the test FS size in the guest's memory 2.726 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.454
Then I find very few patterns in the guest's memory after 3 seconds 5.484 
Pattern coverage: 0.000% (0 MiB out of 1420 MiB reference memory)
After features/support/hooks.rb:339 1.055
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
45.405
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 6.449
And I prepare Tails for memory erasure tests 0.378
When I fill a 128 MiB file with a known pattern on the root filesystem 13.371
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.650
Then patterns cover at least 128 MiB in the guest's memory 2.830 
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 20.720 
Pattern coverage: 0.000% (0 MiB out of 1421 MiB reference memory)
After features/support/hooks.rb:339 3.619
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:35.521
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:3.262
And I prepare Tails for memory erasure tests 0.295
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.864
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.094 
Pattern coverage: 0.000% (0 MiB out of 1455 MiB reference memory)
After features/support/hooks.rb:339 3.621
After features/support/hooks.rb:108 0.027