Project Number Date
test_Tails_ISO_devel 4206 03 Feb 2026, 12:51

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 12:45.761 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
46.701
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 8.453
And I prepare Tails for memory erasure tests 0.436
When I start a process allocating 128 MiB of memory with a known pattern 2.299
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 15.851 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.208
Then I find very few patterns in the guest's memory after 5 seconds 19.451 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
After features/support/hooks.rb:331 0.816
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:0.804
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 8.349
And I prepare Tails for memory erasure tests 0.455
And I find very few patterns in the guest's memory 14.677 
Pattern coverage: 0.000% (0 MiB out of 1502 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.998
Then patterns cover at least 99% of the test FS size in the guest's memory 15.652 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 1.093
Then I find very few patterns in the guest's memory after 3 seconds 17.576 
Pattern coverage: 0.000% (0 MiB out of 1502 MiB reference memory)
After features/support/hooks.rb:331 1.174
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:44.038
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 8.766
And I prepare Tails for memory erasure tests 0.484
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.497
Then I find very few patterns in the guest's memory 14.856 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 3.349
Then patterns cover at least 75% of the test FS size in the guest's memory 15.805 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.659
Then I find very few patterns in the guest's memory after 3 seconds 17.137 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
# read cache
When I mount the USB drive again 0.192
And I read the content of the test FS 0.676
Then patterns cover at least 99% of the test FS size in the guest's memory 16.041 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.475
Then I find very few patterns in the guest's memory after 3 seconds 18.096 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
After features/support/hooks.rb:331 1.253
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:4.731
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 8.816
And I prepare Tails for memory erasure tests 0.429
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 32.276
Then I find very few patterns in the guest's memory 13.144 
Pattern coverage: 0.000% (0 MiB out of 1499 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.135
Then patterns cover at least 99% of the test FS size in the guest's memory 14.179 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.805
Then I find very few patterns in the guest's memory after 3 seconds 15.895 
Pattern coverage: 0.000% (0 MiB out of 1499 MiB reference memory)
# read cache
When I mount the USB drive again 4.278
And I read the content of the test FS 0.668
Then patterns cover at least 99% of the test FS size in the guest's memory 13.773 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.519
Then I find very few patterns in the guest's memory after 3 seconds 17.809 
Pattern coverage: 0.000% (0 MiB out of 1499 MiB reference memory)
After features/support/hooks.rb:331 0.995
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
56.974
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 8.392
And I prepare Tails for memory erasure tests 0.428
When I fill a 128 MiB file with a known pattern on the root filesystem 12.078
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.102
Then patterns cover at least 128 MiB in the guest's memory 11.034 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.010
Then I find very few patterns in the guest's memory after 20 seconds 22.928 
Pattern coverage: 0.000% (0 MiB out of 1496 MiB reference memory)
After features/support/hooks.rb:331 3.916
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
6:12.510
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 5:38.079
And I prepare Tails for memory erasure tests 0.431
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.199
When I trigger shutdown 0.010
Then I find very few patterns in the guest's memory after 20 seconds 24.790 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
After features/support/hooks.rb:331 3.590
After features/support/hooks.rb:100 0.014