Project Number Date
test_Tails_ISO_devel 4128 18 Dec 2025, 12:48

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 6:56.633 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
18.345
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 6.622
And I prepare Tails for memory erasure tests 0.291
When I start a process allocating 128 MiB of memory with a known pattern 2.234
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.919 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.610
Then I find very few patterns in the guest's memory after 5 seconds 6.666 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
After features/support/hooks.rb:331 0.852
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
16.766
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 6.442
And I prepare Tails for memory erasure tests 0.293
And I find very few patterns in the guest's memory 1.769 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.302
Then patterns cover at least 99% of the test FS size in the guest's memory 1.910 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.332
Then I find very few patterns in the guest's memory after 3 seconds 4.714 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
After features/support/hooks.rb:331 0.977
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
30.312
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 6.398
And I prepare Tails for memory erasure tests 0.308
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.202
Then I find very few patterns in the guest's memory 1.634 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.919
Then patterns cover at least 75% of the test FS size in the guest's memory 1.926 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.666
Then I find very few patterns in the guest's memory after 3 seconds 4.579 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
# read cache
When I mount the USB drive again 0.176
And I read the content of the test FS 0.453
Then patterns cover at least 99% of the test FS size in the guest's memory 1.919 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.426
Then I find very few patterns in the guest's memory after 3 seconds 4.700 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
After features/support/hooks.rb:331 0.936
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
58.257
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 6.473
And I prepare Tails for memory erasure tests 0.315
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 31.067
Then I find very few patterns in the guest's memory 1.673 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.118
Then patterns cover at least 99% of the test FS size in the guest's memory 1.686 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.506
Then I find very few patterns in the guest's memory after 3 seconds 4.513 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
# read cache
When I mount the USB drive again 3.669
And I read the content of the test FS 0.277
Then patterns cover at least 99% of the test FS size in the guest's memory 1.751 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.427
Then I find very few patterns in the guest's memory after 3 seconds 4.776 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
After features/support/hooks.rb:331 0.948
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
42.060
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 6.462
And I prepare Tails for memory erasure tests 0.306
When I fill a 128 MiB file with a known pattern on the root filesystem 11.696
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.650
Then patterns cover at least 128 MiB in the guest's memory 1.443 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.007
Then I find very few patterns in the guest's memory after 20 seconds 20.493 
Pattern coverage: 0.000% (0 MiB out of 1478 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
4:10.891
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 3:38.988
And I prepare Tails for memory erasure tests 0.314
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.771
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.811 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
After features/support/hooks.rb:331 3.856
After features/support/hooks.rb:100 0.008