Project Number Date
test_Tails_ISO_21472-circumvention-settings-2 12 07 Apr 2026, 02:35

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 7:12.269 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
20.038
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.487
And I prepare Tails for memory erasure tests 0.490
When I start a process allocating 128 MiB of memory with a known pattern 2.319
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.883 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 2.196
Then I find very few patterns in the guest's memory after 5 seconds 6.660 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
After features/support/hooks.rb:331 0.789
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
17.146
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.387
And I prepare Tails for memory erasure tests 0.569
And I find very few patterns in the guest's memory 1.648 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.508
Then patterns cover at least 99% of the test FS size in the guest's memory 2.026 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.372
Then I find very few patterns in the guest's memory after 3 seconds 4.633 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
After features/support/hooks.rb:331 0.758
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
31.562
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.391
And I prepare Tails for memory erasure tests 0.441
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.069
Then I find very few patterns in the guest's memory 1.820 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.842
Then patterns cover at least 75% of the test FS size in the guest's memory 1.896 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.134
Then I find very few patterns in the guest's memory after 3 seconds 4.639 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
# read cache
When I mount the USB drive again 0.169
And I read the content of the test FS 0.415
Then patterns cover at least 99% of the test FS size in the guest's memory 1.745 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.381
Then I find very few patterns in the guest's memory after 3 seconds 4.613 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
After features/support/hooks.rb:331 1.047
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:11.161
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.648
And I prepare Tails for memory erasure tests 0.415
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 39.351
Then I find very few patterns in the guest's memory 1.624 
Pattern coverage: 0.000% (0 MiB out of 1498 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.352
Then patterns cover at least 99% of the test FS size in the guest's memory 1.724 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.521
Then I find very few patterns in the guest's memory after 3 seconds 4.603 
Pattern coverage: 0.000% (0 MiB out of 1498 MiB reference memory)
# read cache
When I mount the USB drive again 7.900
And I read the content of the test FS 0.281
Then patterns cover at least 99% of the test FS size in the guest's memory 1.708 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.481
Then I find very few patterns in the guest's memory after 3 seconds 4.549 
Pattern coverage: 0.000% (0 MiB out of 1498 MiB reference memory)
After features/support/hooks.rb:331 0.901
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
42.408
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.430
And I prepare Tails for memory erasure tests 0.516
When I fill a 128 MiB file with a known pattern on the root filesystem 11.924
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.619
Then patterns cover at least 128 MiB in the guest's memory 1.426 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.008
Then I find very few patterns in the guest's memory after 20 seconds 20.482 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
After features/support/hooks.rb:331 3.697
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:9.952
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:38.466
And I prepare Tails for memory erasure tests 0.290
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.300
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.889 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:331 3.784
After features/support/hooks.rb:100 0.011