Project Number Date
test_Tails_ISO_devel 4079 19 Nov 2025, 13:12

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 18:40.982 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
47.304
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 8.506
And I prepare Tails for memory erasure tests 0.472
When I start a process allocating 128 MiB of memory with a known pattern 2.290
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 15.378 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.966
Then I find very few patterns in the guest's memory after 5 seconds 19.690 
Pattern coverage: 0.000% (0 MiB out of 1500 MiB reference memory)
After features/support/hooks.rb:331 1.444
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:1.401
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.005
Given I have started Tails from DVD without network and logged in 9.257
And I prepare Tails for memory erasure tests 0.427
And I find very few patterns in the guest's memory 14.530 
Pattern coverage: 0.000% (0 MiB out of 1500 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.938
Then patterns cover at least 99% of the test FS size in the guest's memory 16.411 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.457
Then I find very few patterns in the guest's memory after 3 seconds 18.379 
Pattern coverage: 0.000% (0 MiB out of 1500 MiB reference memory)
After features/support/hooks.rb:331 1.200
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:52.661
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 8.762
And I prepare Tails for memory erasure tests 0.419
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.464
Then I find very few patterns in the guest's memory 25.235 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.869
Then patterns cover at least 75% of the test FS size in the guest's memory 17.786 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.083
Then I find very few patterns in the guest's memory after 3 seconds 32.235 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
# read cache
When I mount the USB drive again 0.191
And I read the content of the test FS 0.614
Then patterns cover at least 99% of the test FS size in the guest's memory 34.403 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.531
Then I find very few patterns in the guest's memory after 3 seconds 42.063 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
After features/support/hooks.rb:331 1.000
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:10.551
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 9.876
And I prepare Tails for memory erasure tests 0.440
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 34.206
Then I find very few patterns in the guest's memory 15.024 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.527
Then patterns cover at least 99% of the test FS size in the guest's memory 14.520 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.676
Then I find very few patterns in the guest's memory after 3 seconds 16.344 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
# read cache
When I mount the USB drive again 4.603
And I read the content of the test FS 0.555
Then patterns cover at least 99% of the test FS size in the guest's memory 14.133 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.711
Then I find very few patterns in the guest's memory after 3 seconds 17.931 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
After features/support/hooks.rb:331 1.245
After features/support/hooks.rb:100 0.001
Tags: @product @slow @not_release_blocker
1:0.496
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.021
Given I have started Tails from DVD without network and logged in 8.537
And I prepare Tails for memory erasure tests 0.472
When I fill a 128 MiB file with a known pattern on the root filesystem 11.024
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.468
Then patterns cover at least 128 MiB in the guest's memory 12.358 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.014
Then I find very few patterns in the guest's memory after 20 seconds 25.620 
Pattern coverage: 0.000% (0 MiB out of 1500 MiB reference memory)
After features/support/hooks.rb:331 8.176
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
10:48.566
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.007
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 10:13.845
And I prepare Tails for memory erasure tests 0.364
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.629
When I trigger shutdown 0.018
Then I find very few patterns in the guest's memory after 20 seconds 23.707 
Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)
After features/support/hooks.rb:331 3.707
After features/support/hooks.rb:100 0.017