Project Number Date
test_Tails_ISO_devel 4307 31 Mar 2026, 11:29

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 8:5.478 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
17.623
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 0.318
When I start a process allocating 128 MiB of memory with a known pattern 1.137
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.997 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.829
Then I find very few patterns in the guest's memory after 5 seconds 6.853 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
After features/support/hooks.rb:331 0.772
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
17.170
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 6.525
And I prepare Tails for memory erasure tests 0.390
And I find very few patterns in the guest's memory 1.658 
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 1.644
Then patterns cover at least 99% of the test FS size in the guest's memory 1.861 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.315
Then I find very few patterns in the guest's memory after 3 seconds 4.775 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
After features/support/hooks.rb:331 1.261
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
31.439
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 6.507
And I prepare Tails for memory erasure tests 0.351
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.113
Then I find very few patterns in the guest's memory 1.717 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.193
Then patterns cover at least 75% of the test FS size in the guest's memory 2.039 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.091
Then I find very few patterns in the guest's memory after 3 seconds 4.715 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
# read cache
When I mount the USB drive again 0.161
And I read the content of the test FS 0.513
Then patterns cover at least 99% of the test FS size in the guest's memory 1.878 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.423
Then I find very few patterns in the guest's memory after 3 seconds 4.733 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
After features/support/hooks.rb:331 0.769
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:18.837
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 6.430
And I prepare Tails for memory erasure tests 0.374
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 33.213
Then I find very few patterns in the guest's memory 1.606 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.487
Then patterns cover at least 99% of the test FS size in the guest's memory 1.855 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.643
Then I find very few patterns in the guest's memory after 3 seconds 4.733 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
# read cache
When I mount the USB drive again 21.089
And I read the content of the test FS 0.320
Then patterns cover at least 99% of the test FS size in the guest's memory 1.864 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.601
Then I find very few patterns in the guest's memory after 3 seconds 4.616 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
After features/support/hooks.rb:331 1.158
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
45.739
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 6.559
And I prepare Tails for memory erasure tests 0.398
When I fill a 128 MiB file with a known pattern on the root filesystem 12.898
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 3.944
Then patterns cover at least 128 MiB in the guest's memory 1.407 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.526 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
After features/support/hooks.rb:331 3.472
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:54.668
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 4:21.939
And I prepare Tails for memory erasure tests 0.362
When I fill a 128 MiB file with a known pattern on the persistent filesystem 11.334
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 21.024 
Pattern coverage: 0.000% (0 MiB out of 1509 MiB reference memory)
After features/support/hooks.rb:331 3.848
After features/support/hooks.rb:100 0.009