Project Number Date
test_Tails_ISO_stable 6046 08 Jan 2026, 19:21

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 7:15.974 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
17.665
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 6.561
And I prepare Tails for memory erasure tests 0.374
When I start a process allocating 128 MiB of memory with a known pattern 1.181
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.052 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.685
Then I find very few patterns in the guest's memory after 5 seconds 6.809 
Pattern coverage: 0.000% (0 MiB out of 1461 MiB reference memory)
After features/support/hooks.rb:331 0.638
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
17.558
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 6.715
And I prepare Tails for memory erasure tests 0.338
And I find very few patterns in the guest's memory 1.707 
Pattern coverage: 0.000% (0 MiB out of 1459 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.285
Then patterns cover at least 99% of the test FS size in the guest's memory 1.932 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.506
Then I find very few patterns in the guest's memory after 3 seconds 5.072 
Pattern coverage: 0.000% (0 MiB out of 1459 MiB reference memory)
After features/support/hooks.rb:331 0.694
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
32.192
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 6.919
And I prepare Tails for memory erasure tests 0.338
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.324
Then I find very few patterns in the guest's memory 1.975 
Pattern coverage: 0.000% (0 MiB out of 1457 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.229
Then patterns cover at least 75% of the test FS size in the guest's memory 2.268 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.688
Then I find very few patterns in the guest's memory after 3 seconds 4.852 
Pattern coverage: 0.000% (0 MiB out of 1457 MiB reference memory)
# read cache
When I mount the USB drive again 0.180
And I read the content of the test FS 0.403
Then patterns cover at least 99% of the test FS size in the guest's memory 1.829 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.377
Then I find very few patterns in the guest's memory after 3 seconds 4.802 
Pattern coverage: 0.000% (0 MiB out of 1457 MiB reference memory)
After features/support/hooks.rb:331 1.079
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
58.098
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 6.850
And I prepare Tails for memory erasure tests 0.353
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.677
Then I find very few patterns in the guest's memory 2.375 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.180
Then patterns cover at least 99% of the test FS size in the guest's memory 2.098 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.652
Then I find very few patterns in the guest's memory after 3 seconds 4.740 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
# read cache
When I mount the USB drive again 3.907
And I read the content of the test FS 0.307
Then patterns cover at least 99% of the test FS size in the guest's memory 1.895 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.442
Then I find very few patterns in the guest's memory after 3 seconds 4.616 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
After features/support/hooks.rb:331 0.705
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
44.148
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 6.919
And I prepare Tails for memory erasure tests 0.374
When I fill a 128 MiB file with a known pattern on the root filesystem 12.374
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.927
Then patterns cover at least 128 MiB in the guest's memory 1.813 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.011
Then I find very few patterns in the guest's memory after 20 seconds 20.728 
Pattern coverage: 0.000% (0 MiB out of 1459 MiB reference memory)
After features/support/hooks.rb:331 3.459
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:26.310
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 3:54.659
And I prepare Tails for memory erasure tests 0.369
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.410
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.864 
Pattern coverage: 0.000% (0 MiB out of 1501 MiB reference memory)
After features/support/hooks.rb:331 3.465
After features/support/hooks.rb:100 0.011