Project Number Date
test_Tails_ISO_devel 4383 08 May 2026, 13:23

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 7:36.285 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
17.824
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 6.759
And I prepare Tails for memory erasure tests 0.442
When I start a process allocating 128 MiB of memory with a known pattern 1.172
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.047 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.191
Then I find very few patterns in the guest's memory after 5 seconds 7.209 
Pattern coverage: 0.000% (0 MiB out of 1529 MiB reference memory)
After features/support/hooks.rb:331 1.108
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
18.022
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.004
Given I have started Tails from DVD without network and logged in 6.758
And I prepare Tails for memory erasure tests 0.389
And I find very few patterns in the guest's memory 1.904 
Pattern coverage: 0.000% (0 MiB out of 1521 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.629
Then patterns cover at least 99% of the test FS size in the guest's memory 2.050 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.330
Then I find very few patterns in the guest's memory after 3 seconds 4.960 
Pattern coverage: 0.000% (0 MiB out of 1521 MiB reference memory)
After features/support/hooks.rb:331 0.780
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
33.588
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 6.847
And I prepare Tails for memory erasure tests 0.412
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.513
Then I find very few patterns in the guest's memory 1.866 
Pattern coverage: 0.000% (0 MiB out of 1520 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.741
Then patterns cover at least 75% of the test FS size in the guest's memory 2.544 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.735
Then I find very few patterns in the guest's memory after 3 seconds 4.973 
Pattern coverage: 0.000% (0 MiB out of 1520 MiB reference memory)
# read cache
When I mount the USB drive again 0.177
And I read the content of the test FS 0.524
Then patterns cover at least 99% of the test FS size in the guest's memory 2.074 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.399
Then I find very few patterns in the guest's memory after 3 seconds 4.776 
Pattern coverage: 0.000% (0 MiB out of 1520 MiB reference memory)
After features/support/hooks.rb:331 0.765
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
52.973
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 6.779
And I prepare Tails for memory erasure tests 0.433
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 23.159
Then I find very few patterns in the guest's memory 1.839 
Pattern coverage: 0.000% (0 MiB out of 1526 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.364
Then patterns cover at least 99% of the test FS size in the guest's memory 2.032 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.506
Then I find very few patterns in the guest's memory after 3 seconds 5.117 
Pattern coverage: 0.000% (0 MiB out of 1526 MiB reference memory)
# read cache
When I mount the USB drive again 3.748
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 2.118 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.496
Then I find very few patterns in the guest's memory after 3 seconds 5.028 
Pattern coverage: 0.000% (0 MiB out of 1526 MiB reference memory)
After features/support/hooks.rb:331 0.914
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
59.433
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 6.592
And I prepare Tails for memory erasure tests 0.387
When I fill a 128 MiB file with a known pattern on the root filesystem 27.624
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.369
Then patterns cover at least 128 MiB in the guest's memory 1.857 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.007
Then I find very few patterns in the guest's memory after 20 seconds 20.594 
Pattern coverage: 0.000% (0 MiB out of 1520 MiB reference memory)
After features/support/hooks.rb:331 3.636
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:34.443
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:53.752
And I prepare Tails for memory erasure tests 0.345
When I fill a 128 MiB file with a known pattern on the persistent filesystem 19.225
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 21.112 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
After features/support/hooks.rb:331 3.826
After features/support/hooks.rb:100 0.010