Project Number Date
test_Tails_ISO_devel 4376 05 May 2026, 11:10

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 7:46.831 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
19.158
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 6.665
And I prepare Tails for memory erasure tests 0.355
When I start a process allocating 128 MiB of memory with a known pattern 2.296
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.194 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.811
Then I find very few patterns in the guest's memory after 5 seconds 6.834 
Pattern coverage: 0.000% (0 MiB out of 1489 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
17.522
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 6.487
And I prepare Tails for memory erasure tests 0.380
And I find very few patterns in the guest's memory 1.823 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.528
Then patterns cover at least 99% of the test FS size in the guest's memory 2.173 
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 4.797 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
After features/support/hooks.rb:331 0.684
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
32.679
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 6.655
And I prepare Tails for memory erasure tests 0.341
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.396
Then I find very few patterns in the guest's memory 1.897 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.647
Then patterns cover at least 75% of the test FS size in the guest's memory 2.194 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.813
Then I find very few patterns in the guest's memory after 3 seconds 4.789 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
# read cache
When I mount the USB drive again 0.156
And I read the content of the test FS 0.423
Then patterns cover at least 99% of the test FS size in the guest's memory 2.003 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.416
Then I find very few patterns in the guest's memory after 3 seconds 4.945 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
After features/support/hooks.rb:331 1.126
After features/support/hooks.rb:100 0.001
Tags: @product @slow @not_release_blocker
56.616
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 6.760
And I prepare Tails for memory erasure tests 0.478
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 27.606
Then I find very few patterns in the guest's memory 1.684 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.500
Then patterns cover at least 99% of the test FS size in the guest's memory 2.132 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.616
Then I find very few patterns in the guest's memory after 3 seconds 4.686 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
# read cache
When I mount the USB drive again 3.972
And I read the content of the test FS 0.308
Then patterns cover at least 99% of the test FS size in the guest's memory 1.776 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.402
Then I find very few patterns in the guest's memory after 3 seconds 4.690 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
After features/support/hooks.rb:331 0.607
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
57.083
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 6.916
And I prepare Tails for memory erasure tests 0.369
When I fill a 128 MiB file with a known pattern on the root filesystem 25.626
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.983
Then patterns cover at least 128 MiB in the guest's memory 1.576 
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 20.602 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
After features/support/hooks.rb:331 3.527
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:43.770
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:3.826
And I prepare Tails for memory erasure tests 0.386
When I fill a 128 MiB file with a known pattern on the persistent filesystem 18.538
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 21.012 
Pattern coverage: 0.000% (0 MiB out of 1518 MiB reference memory)
After features/support/hooks.rb:331 3.505
After features/support/hooks.rb:100 0.010