Project Number Date
test_Tails_ISO_devel 4094 30 Nov 2025, 17:42

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 16:42.481 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
55.259
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 9.936
And I prepare Tails for memory erasure tests 0.473
When I start a process allocating 128 MiB of memory with a known pattern 2.273
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 23.088 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.387
Then I find very few patterns in the guest's memory after 5 seconds 19.100 
Pattern coverage: 0.000% (0 MiB out of 1509 MiB reference memory)
After features/support/hooks.rb:331 0.746
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
57.645
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 8.732
And I prepare Tails for memory erasure tests 0.467
And I find very few patterns in the guest's memory 13.917 
Pattern coverage: 0.000% (0 MiB out of 1501 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.756
Then patterns cover at least 99% of the test FS size in the guest's memory 15.231 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.506
Then I find very few patterns in the guest's memory after 3 seconds 17.032 
Pattern coverage: 0.000% (0 MiB out of 1501 MiB reference memory)
After features/support/hooks.rb:331 0.864
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:36.755
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 9.163
And I prepare Tails for memory erasure tests 0.427
When I plug and mount a 128 MiB USB drive with a vfat filesystem 7.309
Then I find very few patterns in the guest's memory 14.847 
Pattern coverage: 0.000% (0 MiB out of 1507 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.854
Then patterns cover at least 75% of the test FS size in the guest's memory 18.123 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.123
Then I find very few patterns in the guest's memory after 3 seconds 27.715 
Pattern coverage: 0.000% (0 MiB out of 1507 MiB reference memory)
# read cache
When I mount the USB drive again 0.212
And I read the content of the test FS 0.739
Then patterns cover at least 99% of the test FS size in the guest's memory 35.414 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.469
Then I find very few patterns in the guest's memory after 3 seconds 38.354 
Pattern coverage: 0.000% (0 MiB out of 1507 MiB reference memory)
After features/support/hooks.rb:331 1.042
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
3:10.004
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 8.553
And I prepare Tails for memory erasure tests 0.801
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 34.992
Then I find very few patterns in the guest's memory 30.174 
Pattern coverage: 0.000% (0 MiB out of 1512 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 3.091
Then patterns cover at least 99% of the test FS size in the guest's memory 32.110 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 1.105
Then I find very few patterns in the guest's memory after 3 seconds 37.131 
Pattern coverage: 0.000% (0 MiB out of 1512 MiB reference memory)
# read cache
When I mount the USB drive again 4.575
And I read the content of the test FS 0.463
Then patterns cover at least 99% of the test FS size in the guest's memory 18.885 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.640
Then I find very few patterns in the guest's memory after 3 seconds 17.479 
Pattern coverage: 0.000% (0 MiB out of 1512 MiB reference memory)
After features/support/hooks.rb:331 1.179
After features/support/hooks.rb:100 0.002
Tags: @product @slow @not_release_blocker
56.440
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.018
Given I have started Tails from DVD without network and logged in 9.132
And I prepare Tails for memory erasure tests 0.404
When I fill a 128 MiB file with a known pattern on the root filesystem 10.715
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.615
Then patterns cover at least 128 MiB in the guest's memory 9.908 
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 23.653 
Pattern coverage: 0.000% (0 MiB out of 1504 MiB reference memory)
After features/support/hooks.rb:331 4.110
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
8:6.376
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 7:28.867
And I prepare Tails for memory erasure tests 0.391
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.436
When I trigger shutdown 0.010
Then I find very few patterns in the guest's memory after 20 seconds 26.670 
Pattern coverage: 0.000% (0 MiB out of 1502 MiB reference memory)
After features/support/hooks.rb:331 3.876
After features/support/hooks.rb:100 0.014