Project Number Date
test_Tails_ISO_stable 5973 27 Nov 2025, 15:47

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 17:49.648 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
48.987
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 10.277
And I prepare Tails for memory erasure tests 0.461
When I start a process allocating 128 MiB of memory with a known pattern 2.275
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 16.471 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.225
Then I find very few patterns in the guest's memory after 5 seconds 19.276 
Pattern coverage: 0.000% (0 MiB out of 1511 MiB reference memory)
After features/support/hooks.rb:331 1.111
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:4.034
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 8.777
And I prepare Tails for memory erasure tests 0.504
And I find very few patterns in the guest's memory 19.799 
Pattern coverage: 0.000% (0 MiB out of 1512 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.813
Then patterns cover at least 99% of the test FS size in the guest's memory 15.248 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.418
Then I find very few patterns in the guest's memory after 3 seconds 17.472 
Pattern coverage: 0.000% (0 MiB out of 1512 MiB reference memory)
After features/support/hooks.rb:331 0.902
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:52.956
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 9.051
And I prepare Tails for memory erasure tests 0.469
When I plug and mount a 128 MiB USB drive with a vfat filesystem 7.120
Then I find very few patterns in the guest's memory 14.564 
Pattern coverage: 0.000% (0 MiB out of 1499 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.957
Then patterns cover at least 75% of the test FS size in the guest's memory 16.214 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.111
Then I find very few patterns in the guest's memory after 3 seconds 20.859 
Pattern coverage: 0.000% (0 MiB out of 1499 MiB reference memory)
# read cache
When I mount the USB drive again 0.354
And I read the content of the test FS 2.370
Then patterns cover at least 99% of the test FS size in the guest's memory 19.708 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.461
Then I find very few patterns in the guest's memory after 3 seconds 17.712 
Pattern coverage: 0.000% (0 MiB out of 1499 MiB reference memory)
After features/support/hooks.rb:331 1.112
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
3:48.058
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 8.885
And I prepare Tails for memory erasure tests 0.447
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 36.647
Then I find very few patterns in the guest's memory 31.567 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.690
Then patterns cover at least 99% of the test FS size in the guest's memory 31.211 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 1.442
Then I find very few patterns in the guest's memory after 3 seconds 1:1.688 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
# read cache
When I mount the USB drive again 6.131
And I read the content of the test FS 1.808
Then patterns cover at least 99% of the test FS size in the guest's memory 28.375 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.630
Then I find very few patterns in the guest's memory after 3 seconds 16.533 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
After features/support/hooks.rb:331 1.079
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
58.661
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 8.328
And I prepare Tails for memory erasure tests 0.425
When I fill a 128 MiB file with a known pattern on the root filesystem 10.007
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.570
Then patterns cover at least 128 MiB in the guest's memory 14.432 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 22.884 
Pattern coverage: 0.000% (0 MiB out of 1509 MiB reference memory)
After features/support/hooks.rb:331 3.831
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
9:16.950
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.004
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 8:39.604
And I prepare Tails for memory erasure tests 0.493
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.589
When I trigger shutdown 0.010
Then I find very few patterns in the guest's memory after 20 seconds 26.253 
Pattern coverage: 0.000% (0 MiB out of 1496 MiB reference memory)
After features/support/hooks.rb:331 3.676
After features/support/hooks.rb:100 0.031