Project Number Date
test_Tails_ISO_devel 4535 08 Aug 2026, 11:22

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 8:2.058 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
20.787
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.962
And I prepare Tails for memory erasure tests 0.303
When I start a process allocating 128 MiB of memory with a known pattern 2.224
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 3.053 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.228
Then I find very few patterns in the guest's memory after 5 seconds 8.015 
Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)
After features/support/hooks.rb:339 1.061
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
20.481
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.006
Given I have started Tails from DVD without network and logged in 6.492
And I prepare Tails for memory erasure tests 0.283
And I find very few patterns in the guest's memory 2.722 
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 1.471
Then patterns cover at least 99% of the test FS size in the guest's memory 3.229 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.412
Then I find very few patterns in the guest's memory after 3 seconds 5.871 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
After features/support/hooks.rb:339 0.780
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
38.391
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 6.621
And I prepare Tails for memory erasure tests 0.364
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.598
Then I find very few patterns in the guest's memory 3.122 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.755
Then patterns cover at least 75% of the test FS size in the guest's memory 3.273 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.715
Then I find very few patterns in the guest's memory after 3 seconds 5.812 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
# read cache
When I mount the USB drive again 0.194
And I read the content of the test FS 0.592
Then patterns cover at least 99% of the test FS size in the guest's memory 3.075 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.457
Then I find very few patterns in the guest's memory after 3 seconds 5.806 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
After features/support/hooks.rb:339 0.881
After features/support/hooks.rb:108 0.001
Tags: @product @slow @not_release_blocker
1:18.047
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.007
Given I have started Tails from DVD without network and logged in 18.798
And I prepare Tails for memory erasure tests 0.358
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 31.534
Then I find very few patterns in the guest's memory 3.365 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.416
Then patterns cover at least 99% of the test FS size in the guest's memory 3.080 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.587
Then I find very few patterns in the guest's memory after 3 seconds 5.683 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
# read cache
When I mount the USB drive again 3.758
And I read the content of the test FS 0.402
Then patterns cover at least 99% of the test FS size in the guest's memory 2.785 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.454
Then I find very few patterns in the guest's memory after 3 seconds 5.820 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:339 0.799
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
44.850
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.007
Given I have started Tails from DVD without network and logged in 6.437
And I prepare Tails for memory erasure tests 0.321
When I fill a 128 MiB file with a known pattern on the root filesystem 13.284
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.441
Then patterns cover at least 128 MiB in the guest's memory 2.242 
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 21.116 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
After features/support/hooks.rb:339 3.691
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:39.499
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 4:7.772
And I prepare Tails for memory erasure tests 0.363
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.071
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.287 
Pattern coverage: 0.000% (0 MiB out of 1524 MiB reference memory)
After features/support/hooks.rb:339 3.702
After features/support/hooks.rb:108 0.039