Project Number Date
test_Tails_ISO_stable 6015 19 Dec 2025, 07:14

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 6:53.584 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
17.831
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.534
And I prepare Tails for memory erasure tests 0.303
When I start a process allocating 128 MiB of memory with a known pattern 2.255
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.810 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.172
Then I find very few patterns in the guest's memory after 5 seconds 6.755 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
After features/support/hooks.rb:331 0.929
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
16.666
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.526
And I prepare Tails for memory erasure tests 0.368
And I find very few patterns in the guest's memory 1.540 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.384
Then patterns cover at least 99% of the test FS size in the guest's memory 1.777 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.313
Then I find very few patterns in the guest's memory after 3 seconds 4.754 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
After features/support/hooks.rb:331 0.535
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
30.545
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.490
And I prepare Tails for memory erasure tests 0.341
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.061
Then I find very few patterns in the guest's memory 1.631 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.074
Then patterns cover at least 75% of the test FS size in the guest's memory 2.000 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.684
Then I find very few patterns in the guest's memory after 3 seconds 4.662 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
# read cache
When I mount the USB drive again 0.140
And I read the content of the test FS 0.501
Then patterns cover at least 99% of the test FS size in the guest's memory 1.944 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.357
Then I find very few patterns in the guest's memory after 3 seconds 4.655 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
After features/support/hooks.rb:331 0.629
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
56.802
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.389
And I prepare Tails for memory erasure tests 0.294
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.472
Then I find very few patterns in the guest's memory 1.620 
Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.133
Then patterns cover at least 99% of the test FS size in the guest's memory 1.644 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.525
Then I find very few patterns in the guest's memory after 3 seconds 4.558 
Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)
# read cache
When I mount the USB drive again 4.095
And I read the content of the test FS 0.268
Then patterns cover at least 99% of the test FS size in the guest's memory 1.793 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.393
Then I find very few patterns in the guest's memory after 3 seconds 4.612 
Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)
After features/support/hooks.rb:331 0.940
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
42.469
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.501
And I prepare Tails for memory erasure tests 0.319
When I fill a 128 MiB file with a known pattern on the root filesystem 11.944
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.823
Then patterns cover at least 128 MiB in the guest's memory 1.405 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.468 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
After features/support/hooks.rb:331 3.592
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:9.269
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 3:37.945
And I prepare Tails for memory erasure tests 0.262
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.158
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.897 
Pattern coverage: 0.000% (0 MiB out of 1498 MiB reference memory)
After features/support/hooks.rb:331 3.435
After features/support/hooks.rb:100 0.009