Project Number Date
test_Tails_ISO_devel 4084 23 Nov 2025, 12:06

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 13:20.570 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
47.760
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 7.798
And I prepare Tails for memory erasure tests 0.403
When I start a process allocating 128 MiB of memory with a known pattern 1.143
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 14.180 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.138
Then I find very few patterns in the guest's memory after 5 seconds 24.095 
Pattern coverage: 0.000% (0 MiB out of 1507 MiB reference memory)
After features/support/hooks.rb:331 1.021
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
54.268
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 7.662
And I prepare Tails for memory erasure tests 0.299
And I find very few patterns in the guest's memory 13.037 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 0.619
Then patterns cover at least 99% of the test FS size in the guest's memory 14.995 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.082
Then I find very few patterns in the guest's memory after 3 seconds 17.571 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
After features/support/hooks.rb:331 1.055
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:45.267
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 7.949
And I prepare Tails for memory erasure tests 0.381
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.852
Then I find very few patterns in the guest's memory 19.973 
Pattern coverage: 0.000% (0 MiB out of 1503 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 0.967
Then patterns cover at least 75% of the test FS size in the guest's memory 15.636 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.211
Then I find very few patterns in the guest's memory after 3 seconds 17.584 
Pattern coverage: 0.000% (0 MiB out of 1503 MiB reference memory)
# read cache
When I mount the USB drive again 0.139
And I read the content of the test FS 0.630
Then patterns cover at least 99% of the test FS size in the guest's memory 17.618 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.149
Then I find very few patterns in the guest's memory after 3 seconds 17.170 
Pattern coverage: 0.000% (0 MiB out of 1503 MiB reference memory)
After features/support/hooks.rb:331 0.653
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:2.645
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 7.970
And I prepare Tails for memory erasure tests 0.364
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 25.868
Then I find very few patterns in the guest's memory 13.003 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.285
Then patterns cover at least 99% of the test FS size in the guest's memory 14.897 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 1.638
Then I find very few patterns in the guest's memory after 3 seconds 16.934 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
# read cache
When I mount the USB drive again 2.314
And I read the content of the test FS 0.645
Then patterns cover at least 99% of the test FS size in the guest's memory 18.462 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.458
Then I find very few patterns in the guest's memory after 3 seconds 18.802 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
After features/support/hooks.rb:331 0.931
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
53.699
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.007
Given I have started Tails from DVD without network and logged in 8.039
And I prepare Tails for memory erasure tests 0.358
When I fill a 128 MiB file with a known pattern on the root filesystem 10.015
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 0.298
Then patterns cover at least 128 MiB in the guest's memory 9.876 
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 25.100 
Pattern coverage: 0.000% (0 MiB out of 1503 MiB reference memory)
After features/support/hooks.rb:331 3.820
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
6:56.929
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.014
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:24.276
And I prepare Tails for memory erasure tests 0.372
When I fill a 128 MiB file with a known pattern on the persistent filesystem 8.872
When I trigger shutdown 0.193
Then I find very few patterns in the guest's memory after 20 seconds 23.213 
Pattern coverage: 0.000% (0 MiB out of 1528 MiB reference memory)
After features/support/hooks.rb:331 3.840
After features/support/hooks.rb:100 0.014