Project Number Date
test_Tails_ISO_stable 5949 13 Nov 2025, 08:38

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 17:50.633 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
48.199
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 9.965
And I prepare Tails for memory erasure tests 0.408
When I start a process allocating 128 MiB of memory with a known pattern 2.286
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 15.301 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.305
Then I find very few patterns in the guest's memory after 5 seconds 19.933 
Pattern coverage: 0.000% (0 MiB out of 1510 MiB reference memory)
After features/support/hooks.rb:331 0.878
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:2.827
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 8.912
And I prepare Tails for memory erasure tests 0.699
And I find very few patterns in the guest's memory 14.432 
Pattern coverage: 0.000% (0 MiB out of 1509 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.714
Then patterns cover at least 99% of the test FS size in the guest's memory 15.384 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.591
Then I find very few patterns in the guest's memory after 3 seconds 21.092 
Pattern coverage: 0.000% (0 MiB out of 1509 MiB reference memory)
After features/support/hooks.rb:331 3.064
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
3:1.713
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 10.907
And I prepare Tails for memory erasure tests 0.418
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.639
Then I find very few patterns in the guest's memory 14.846 
Pattern coverage: 0.000% (0 MiB out of 1507 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.725
Then patterns cover at least 75% of the test FS size in the guest's memory 19.684 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.033
Then I find very few patterns in the guest's memory after 3 seconds 21.045 
Pattern coverage: 0.000% (0 MiB out of 1507 MiB reference memory)
# read cache
When I mount the USB drive again 0.214
And I read the content of the test FS 0.582
Then patterns cover at least 99% of the test FS size in the guest's memory 47.770 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.500
Then I find very few patterns in the guest's memory after 3 seconds 55.343 
Pattern coverage: 0.000% (0 MiB out of 1507 MiB reference memory)
After features/support/hooks.rb:331 4.984
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:44.608
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 18.394
And I prepare Tails for memory erasure tests 0.635
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 31.565
Then I find very few patterns in the guest's memory 37.626 
Pattern coverage: 0.000% (0 MiB out of 1508 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 3.798
Then patterns cover at least 99% of the test FS size in the guest's memory 13.858 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.737
Then I find very few patterns in the guest's memory after 3 seconds 17.522 
Pattern coverage: 0.000% (0 MiB out of 1508 MiB reference memory)
# read cache
When I mount the USB drive again 5.069
And I read the content of the test FS 0.483
Then patterns cover at least 99% of the test FS size in the guest's memory 15.491 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.609
Then I find very few patterns in the guest's memory after 3 seconds 18.815 
Pattern coverage: 0.000% (0 MiB out of 1508 MiB reference memory)
After features/support/hooks.rb:331 1.081
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:5.288
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 8.770
And I prepare Tails for memory erasure tests 0.433
When I fill a 128 MiB file with a known pattern on the root filesystem 11.635
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.654
Then patterns cover at least 128 MiB in the guest's memory 17.297 
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 24.486 
Pattern coverage: 0.000% (0 MiB out of 1516 MiB reference memory)
After features/support/hooks.rb:331 4.578
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
9:7.994
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 8:32.982
And I prepare Tails for memory erasure tests 0.472
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.169
When I trigger shutdown 0.010
Then I find very few patterns in the guest's memory after 20 seconds 25.358 
Pattern coverage: 0.000% (0 MiB out of 1526 MiB reference memory)
After features/support/hooks.rb:331 3.867
After features/support/hooks.rb:100 0.020