Project Number Date
test_Tails_ISO_devel 4171 16 Jan 2026, 08:42

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 13:1.163 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
47.181
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 8.504
And I prepare Tails for memory erasure tests 0.386
When I start a process allocating 128 MiB of memory with a known pattern 2.252
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 15.485 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 1.359
Then I find very few patterns in the guest's memory after 5 seconds 19.194 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
After features/support/hooks.rb:331 0.821
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:2.636
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 8.417
And I prepare Tails for memory erasure tests 0.392
And I find very few patterns in the guest's memory 14.436 
Pattern coverage: 0.000% (0 MiB out of 1499 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.740
Then patterns cover at least 99% of the test FS size in the guest's memory 14.877 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 1.228
Then I find very few patterns in the guest's memory after 3 seconds 20.544 
Pattern coverage: 0.000% (0 MiB out of 1499 MiB reference memory)
After features/support/hooks.rb:331 0.792
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:41.735
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 8.475
And I prepare Tails for memory erasure tests 0.561
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.663
Then I find very few patterns in the guest's memory 14.344 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 3.423
Then patterns cover at least 75% of the test FS size in the guest's memory 16.063 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.544
Then I find very few patterns in the guest's memory after 3 seconds 16.703 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
# read cache
When I mount the USB drive again 0.222
And I read the content of the test FS 0.618
Then patterns cover at least 99% of the test FS size in the guest's memory 15.136 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.356
Then I find very few patterns in the guest's memory after 3 seconds 17.621 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
After features/support/hooks.rb:331 0.695
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:34.397
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 8.478
And I prepare Tails for memory erasure tests 0.466
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 36.723
Then I find very few patterns in the guest's memory 24.912 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 3.030
Then patterns cover at least 99% of the test FS size in the guest's memory 21.520 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.629
Then I find very few patterns in the guest's memory after 3 seconds 19.485 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
# read cache
When I mount the USB drive again 4.396
And I read the content of the test FS 0.631
Then patterns cover at least 99% of the test FS size in the guest's memory 18.285 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.512
Then I find very few patterns in the guest's memory after 3 seconds 15.324 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
After features/support/hooks.rb:331 1.132
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
55.551
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 8.009
And I prepare Tails for memory erasure tests 0.399
When I fill a 128 MiB file with a known pattern on the root filesystem 12.538
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.132
Then patterns cover at least 128 MiB in the guest's memory 9.655 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 22.803 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
After features/support/hooks.rb:331 3.666
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
5:59.660
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 5:26.709
And I prepare Tails for memory erasure tests 0.338
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.042
When I trigger shutdown 0.009
Then I find very few patterns in the guest's memory after 20 seconds 23.560 
Pattern coverage: 0.000% (0 MiB out of 1496 MiB reference memory)
After features/support/hooks.rb:331 3.842
After features/support/hooks.rb:100 0.014