Project Number Date
test_Tails_ISO_21523-21524-unsafe-browser-onionshare-no-dbus-access 11 02 May 2026, 18:45

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 8:4.092 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
19.648
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 6.576
And I prepare Tails for memory erasure tests 0.356
When I start a process allocating 128 MiB of memory with a known pattern 2.635
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.192 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 1.242
Then I find very few patterns in the guest's memory after 5 seconds 6.646 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:331 0.674
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
17.407
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 6.515
And I prepare Tails for memory erasure tests 0.328
And I find very few patterns in the guest's memory 1.682 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.786
Then patterns cover at least 99% of the test FS size in the guest's memory 2.126 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.355
Then I find very few patterns in the guest's memory after 3 seconds 4.611 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
After features/support/hooks.rb:331 0.959
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
31.733
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 0.363
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.168
Then I find very few patterns in the guest's memory 1.990 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.607
Then patterns cover at least 75% of the test FS size in the guest's memory 2.057 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.767
Then I find very few patterns in the guest's memory after 3 seconds 4.728 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
# read cache
When I mount the USB drive again 0.170
And I read the content of the test FS 0.407
Then patterns cover at least 99% of the test FS size in the guest's memory 1.844 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.439
Then I find very few patterns in the guest's memory after 3 seconds 4.662 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
After features/support/hooks.rb:331 2.762
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:6.307
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 6.583
And I prepare Tails for memory erasure tests 0.379
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 36.473
Then I find very few patterns in the guest's memory 1.652 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.941
Then patterns cover at least 99% of the test FS size in the guest's memory 1.813 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.940
Then I find very few patterns in the guest's memory after 3 seconds 4.545 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
# read cache
When I mount the USB drive again 4.554
And I read the content of the test FS 0.265
Then patterns cover at least 99% of the test FS size in the guest's memory 1.892 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.749
Then I find very few patterns in the guest's memory after 3 seconds 4.515 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
After features/support/hooks.rb:331 1.072
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:11.256
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 6.509
And I prepare Tails for memory erasure tests 0.342
When I fill a 128 MiB file with a known pattern on the root filesystem 27.948
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 14.405
Then patterns cover at least 128 MiB in the guest's memory 1.529 
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 20.516 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
After features/support/hooks.rb:331 3.838
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:37.738
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:53.099
And I prepare Tails for memory erasure tests 0.328
When I fill a 128 MiB file with a known pattern on the persistent filesystem 23.240
When I trigger shutdown 0.016
Then I find very few patterns in the guest's memory after 20 seconds 21.053 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
After features/support/hooks.rb:331 3.577
After features/support/hooks.rb:100 0.009