Project Number Date
test_Tails_ISO_devel 4189 25 Jan 2026, 12:14

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 6:58.180 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
18.234
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 6.621
And I prepare Tails for memory erasure tests 0.416
When I start a process allocating 128 MiB of memory with a known pattern 2.279
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.958 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.217
Then I find very few patterns in the guest's memory after 5 seconds 6.741 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
After features/support/hooks.rb:331 1.056
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
19.351
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 6.577
And I prepare Tails for memory erasure tests 0.518
And I find very few patterns in the guest's memory 1.801 
Pattern coverage: 0.000% (0 MiB out of 1498 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.858
Then patterns cover at least 99% of the test FS size in the guest's memory 1.999 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.841
Then I find very few patterns in the guest's memory after 3 seconds 4.755 
Pattern coverage: 0.000% (0 MiB out of 1498 MiB reference memory)
After features/support/hooks.rb:331 0.968
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
33.481
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 6.658
And I prepare Tails for memory erasure tests 0.471
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.360
Then I find very few patterns in the guest's memory 1.874 
Pattern coverage: 0.000% (0 MiB out of 1496 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 3.130
Then patterns cover at least 75% of the test FS size in the guest's memory 1.923 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.299
Then I find very few patterns in the guest's memory after 3 seconds 4.991 
Pattern coverage: 0.000% (0 MiB out of 1496 MiB reference memory)
# read cache
When I mount the USB drive again 0.223
And I read the content of the test FS 0.440
Then patterns cover at least 99% of the test FS size in the guest's memory 2.054 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.344
Then I find very few patterns in the guest's memory after 3 seconds 4.708 
Pattern coverage: 0.000% (0 MiB out of 1496 MiB reference memory)
After features/support/hooks.rb:331 0.972
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
58.954
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 6.543
And I prepare Tails for memory erasure tests 0.538
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 30.402
Then I find very few patterns in the guest's memory 1.912 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.528
Then patterns cover at least 99% of the test FS size in the guest's memory 1.758 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.522
Then I find very few patterns in the guest's memory after 3 seconds 4.564 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
# read cache
When I mount the USB drive again 3.969
And I read the content of the test FS 0.284
Then patterns cover at least 99% of the test FS size in the guest's memory 1.801 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.508
Then I find very few patterns in the guest's memory after 3 seconds 4.619 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
After features/support/hooks.rb:331 1.152
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
44.315
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 6.392
And I prepare Tails for memory erasure tests 0.317
When I fill a 128 MiB file with a known pattern on the root filesystem 13.596
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.157
Then patterns cover at least 128 MiB in the guest's memory 1.392 
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 20.454 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
After features/support/hooks.rb:331 3.775
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:3.842
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 3:32.591
And I prepare Tails for memory erasure tests 0.292
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.941
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.012 
Pattern coverage: 0.000% (0 MiB out of 1506 MiB reference memory)
After features/support/hooks.rb:331 3.912
After features/support/hooks.rb:100 0.010