Project Number Date
test_Tails_ISO_stable 6706 29 Sep 2026, 15:54

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 7:34.719 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
21.032
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 6.504
And I prepare Tails for memory erasure tests 0.314
When I start a process allocating 128 MiB of memory with a known pattern 2.281
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.979 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.694
Then I find very few patterns in the guest's memory after 5 seconds 8.259 
Pattern coverage: 0.000% (0 MiB out of 1397 MiB reference memory)
After features/support/hooks.rb:339 0.767
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
25.066
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 6.469
And I prepare Tails for memory erasure tests 0.282
And I find very few patterns in the guest's memory 3.626 
Pattern coverage: 0.000% (0 MiB out of 1399 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.367
Then patterns cover at least 99% of the test FS size in the guest's memory 4.926 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.367
Then I find very few patterns in the guest's memory after 3 seconds 8.026 
Pattern coverage: 0.000% (0 MiB out of 1399 MiB reference memory)
After features/support/hooks.rb:339 0.710
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
54.027
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.008
Given I have started Tails from DVD without network and logged in 18.224
And I prepare Tails for memory erasure tests 0.355
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.320
Then I find very few patterns in the guest's memory 3.512 
Pattern coverage: 0.000% (0 MiB out of 1393 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.453
Then patterns cover at least 75% of the test FS size in the guest's memory 4.277 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.775
Then I find very few patterns in the guest's memory after 3 seconds 6.741 
Pattern coverage: 0.000% (0 MiB out of 1393 MiB reference memory)
# read cache
When I mount the USB drive again 0.152
And I read the content of the test FS 0.555
Then patterns cover at least 99% of the test FS size in the guest's memory 3.899 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.370
Then I find very few patterns in the guest's memory after 3 seconds 7.388 
Pattern coverage: 0.000% (0 MiB out of 1393 MiB reference memory)
After features/support/hooks.rb:339 0.715
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:1.105
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 6.382
And I prepare Tails for memory erasure tests 0.322
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.491
Then I find very few patterns in the guest's memory 3.551 
Pattern coverage: 0.000% (0 MiB out of 1412 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.191
Then patterns cover at least 99% of the test FS size in the guest's memory 2.649 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.520
Then I find very few patterns in the guest's memory after 3 seconds 5.658 
Pattern coverage: 0.000% (0 MiB out of 1412 MiB reference memory)
# read cache
When I mount the USB drive again 3.262
And I read the content of the test FS 0.342
Then patterns cover at least 99% of the test FS size in the guest's memory 2.807 
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 5.455 
Pattern coverage: 0.000% (0 MiB out of 1412 MiB reference memory)
After features/support/hooks.rb:339 0.595
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
44.472
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 6.283
And I prepare Tails for memory erasure tests 0.274
When I fill a 128 MiB file with a known pattern on the root filesystem 12.811
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.722
Then patterns cover at least 128 MiB in the guest's memory 2.455 
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 20.919 
Pattern coverage: 0.000% (0 MiB out of 1392 MiB reference memory)
After features/support/hooks.rb:339 3.536
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:9.015
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 3:36.088
And I prepare Tails for memory erasure tests 0.308
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.854
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.758 
Pattern coverage: 0.000% (0 MiB out of 1431 MiB reference memory)
After features/support/hooks.rb:339 3.649
After features/support/hooks.rb:108 0.010