Project Number Date
test_Tails_ISO_21523-21524-unsafe-browser-onionshare-no-dbus-access 3 21 Apr 2026, 20:17

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 7:35.876 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
18.592
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 6.671
And I prepare Tails for memory erasure tests 0.407
When I start a process allocating 128 MiB of memory with a known pattern 1.226
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.938 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.200
Then I find very few patterns in the guest's memory after 5 seconds 7.148 
Pattern coverage: 0.000% (0 MiB out of 1531 MiB reference memory)
After features/support/hooks.rb:331 0.749
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
18.864
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 6.915
And I prepare Tails for memory erasure tests 0.378
And I find very few patterns in the guest's memory 2.080 
Pattern coverage: 0.000% (0 MiB out of 1537 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.727
Then patterns cover at least 99% of the test FS size in the guest's memory 2.290 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.403
Then I find very few patterns in the guest's memory after 3 seconds 5.067 
Pattern coverage: 0.000% (0 MiB out of 1537 MiB reference memory)
After features/support/hooks.rb:331 1.090
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
33.960
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 6.710
And I prepare Tails for memory erasure tests 0.422
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.884
Then I find very few patterns in the guest's memory 2.244 
Pattern coverage: 0.000% (0 MiB out of 1539 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.391
Then patterns cover at least 75% of the test FS size in the guest's memory 2.314 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.664
Then I find very few patterns in the guest's memory after 3 seconds 4.829 
Pattern coverage: 0.000% (0 MiB out of 1539 MiB reference memory)
# read cache
When I mount the USB drive again 0.237
And I read the content of the test FS 0.482
Then patterns cover at least 99% of the test FS size in the guest's memory 2.246 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.437
Then I find very few patterns in the guest's memory after 3 seconds 5.093 
Pattern coverage: 0.000% (0 MiB out of 1539 MiB reference memory)
After features/support/hooks.rb:331 0.897
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
56.923
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 6.997
And I prepare Tails for memory erasure tests 0.354
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 25.550
Then I find very few patterns in the guest's memory 2.610 
Pattern coverage: 0.000% (0 MiB out of 1533 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.329
Then patterns cover at least 99% of the test FS size in the guest's memory 2.087 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.641
Then I find very few patterns in the guest's memory after 3 seconds 5.173 
Pattern coverage: 0.000% (0 MiB out of 1533 MiB reference memory)
# read cache
When I mount the USB drive again 3.511
And I read the content of the test FS 0.331
Then patterns cover at least 99% of the test FS size in the guest's memory 2.162 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.565
Then I find very few patterns in the guest's memory after 3 seconds 5.607 
Pattern coverage: 0.000% (0 MiB out of 1533 MiB reference memory)
After features/support/hooks.rb:331 1.222
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
45.078
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 7.249
And I prepare Tails for memory erasure tests 0.355
When I fill a 128 MiB file with a known pattern on the root filesystem 12.891
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.151
Then patterns cover at least 128 MiB in the guest's memory 1.751 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.671 
Pattern coverage: 0.000% (0 MiB out of 1537 MiB reference memory)
After features/support/hooks.rb:331 3.523
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:42.457
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 4:9.537
And I prepare Tails for memory erasure tests 0.383
When I fill a 128 MiB file with a known pattern on the persistent filesystem 11.410
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.121 
Pattern coverage: 0.000% (0 MiB out of 1519 MiB reference memory)
After features/support/hooks.rb:331 4.007
After features/support/hooks.rb:100 0.012