Project Number Date
test_Tails_ISO_stable 6677 17 Sep 2026, 11:41

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 7:43.317 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
20.527
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 6.458
And I prepare Tails for memory erasure tests 0.398
When I start a process allocating 128 MiB of memory with a known pattern 2.193
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.965 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.753
Then I find very few patterns in the guest's memory after 5 seconds 7.758 
Pattern coverage: 0.000% (0 MiB out of 1410 MiB reference memory)
After features/support/hooks.rb:339 0.764
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
21.198
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.017
Given I have started Tails from DVD without network and logged in 6.459
And I prepare Tails for memory erasure tests 0.345
And I find very few patterns in the guest's memory 2.790 
Pattern coverage: 0.000% (0 MiB out of 1405 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.668
Then patterns cover at least 99% of the test FS size in the guest's memory 3.942 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.458
Then I find very few patterns in the guest's memory after 3 seconds 5.533 
Pattern coverage: 0.000% (0 MiB out of 1405 MiB reference memory)
After features/support/hooks.rb:339 0.562
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
37.496
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 6.329
And I prepare Tails for memory erasure tests 0.356
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.351
Then I find very few patterns in the guest's memory 2.713 
Pattern coverage: 0.000% (0 MiB out of 1423 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.793
Then patterns cover at least 75% of the test FS size in the guest's memory 3.351 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.671
Then I find very few patterns in the guest's memory after 3 seconds 5.863 
Pattern coverage: 0.000% (0 MiB out of 1423 MiB reference memory)
# read cache
When I mount the USB drive again 0.180
And I read the content of the test FS 0.579
Then patterns cover at least 99% of the test FS size in the guest's memory 3.054 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.432
Then I find very few patterns in the guest's memory after 3 seconds 5.817 
Pattern coverage: 0.000% (0 MiB out of 1423 MiB reference memory)
After features/support/hooks.rb:339 0.795
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:4.196
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 6.406
And I prepare Tails for memory erasure tests 0.344
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 31.358
Then I find very few patterns in the guest's memory 2.810 
Pattern coverage: 0.000% (0 MiB out of 1423 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.137
Then patterns cover at least 99% of the test FS size in the guest's memory 2.618 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.524
Then I find very few patterns in the guest's memory after 3 seconds 5.442 
Pattern coverage: 0.000% (0 MiB out of 1423 MiB reference memory)
# read cache
When I mount the USB drive again 4.324
And I read the content of the test FS 0.347
Then patterns cover at least 99% of the test FS size in the guest's memory 2.897 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.429
Then I find very few patterns in the guest's memory after 3 seconds 5.553 
Pattern coverage: 0.000% (0 MiB out of 1423 MiB reference memory)
After features/support/hooks.rb:339 0.574
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
45.488
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.004
Given I have started Tails from DVD without network and logged in 6.401
And I prepare Tails for memory erasure tests 0.289
When I fill a 128 MiB file with a known pattern on the root filesystem 14.224
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.443
Then patterns cover at least 128 MiB in the guest's memory 2.260 
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 20.864 
Pattern coverage: 0.000% (0 MiB out of 1412 MiB reference memory)
After features/support/hooks.rb:339 3.566
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:34.410
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:2.196
And I prepare Tails for memory erasure tests 0.315
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.752
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.140 
Pattern coverage: 0.000% (0 MiB out of 1400 MiB reference memory)
After features/support/hooks.rb:339 3.776
After features/support/hooks.rb:108 0.013