Project Number Date
test_Tails_ISO_devel 4275 12 Mar 2026, 16:11

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 8:0.693 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
19.482
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 6.876
And I prepare Tails for memory erasure tests 0.439
When I start a process allocating 128 MiB of memory with a known pattern 2.333
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.506 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.232
Then I find very few patterns in the guest's memory after 5 seconds 7.094 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
After features/support/hooks.rb:331 1.143
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
20.490
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 6.942
And I prepare Tails for memory erasure tests 0.476
And I find very few patterns in the guest's memory 2.196 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.531
Then patterns cover at least 99% of the test FS size in the guest's memory 2.317 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.887
Then I find very few patterns in the guest's memory after 3 seconds 5.137 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
After features/support/hooks.rb:331 0.893
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
36.821
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 7.033
And I prepare Tails for memory erasure tests 0.461
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.878
Then I find very few patterns in the guest's memory 2.008 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 3.488
Then patterns cover at least 75% of the test FS size in the guest's memory 2.340 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.282
Then I find very few patterns in the guest's memory after 3 seconds 5.050 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
# read cache
When I mount the USB drive again 0.214
And I read the content of the test FS 0.386
Then patterns cover at least 99% of the test FS size in the guest's memory 2.333 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.382
Then I find very few patterns in the guest's memory after 3 seconds 4.959 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
After features/support/hooks.rb:331 1.001
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:4.433
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 6.906
And I prepare Tails for memory erasure tests 0.460
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.879
Then I find very few patterns in the guest's memory 1.841 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.987
Then patterns cover at least 99% of the test FS size in the guest's memory 2.017 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.618
Then I find very few patterns in the guest's memory after 3 seconds 5.299 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
# read cache
When I mount the USB drive again 7.741
And I read the content of the test FS 0.292
Then patterns cover at least 99% of the test FS size in the guest's memory 1.888 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.494
Then I find very few patterns in the guest's memory after 3 seconds 5.005 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
After features/support/hooks.rb:331 1.043
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
45.791
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 7.013
And I prepare Tails for memory erasure tests 0.353
When I fill a 128 MiB file with a known pattern on the root filesystem 14.275
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.937
Then patterns cover at least 128 MiB in the guest's memory 1.610 
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 20.593 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
After features/support/hooks.rb:331 3.821
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:53.673
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 4:21.367
And I prepare Tails for memory erasure tests 0.310
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.797
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.194 
Pattern coverage: 0.000% (0 MiB out of 1518 MiB reference memory)
After features/support/hooks.rb:331 3.696
After features/support/hooks.rb:100 0.015