Project Number Date
test_Tails_ISO_stable 6434 08 Jun 2026, 11:30

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 7:9.567 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
16.957
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.399
And I prepare Tails for memory erasure tests 0.433
When I start a process allocating 128 MiB of memory with a known pattern 1.171
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.039 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.191
Then I find very few patterns in the guest's memory after 5 seconds 6.720 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
After features/support/hooks.rb:335 0.873
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
17.029
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.473
And I prepare Tails for memory erasure tests 0.516
And I find very few patterns in the guest's memory 1.663 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.445
Then patterns cover at least 99% of the test FS size in the guest's memory 1.951 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.281
Then I find very few patterns in the guest's memory after 3 seconds 4.697 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
After features/support/hooks.rb:335 0.743
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
30.899
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails from DVD without network and logged in 6.447
And I prepare Tails for memory erasure tests 0.418
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.010
Then I find very few patterns in the guest's memory 1.665 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.419
Then patterns cover at least 75% of the test FS size in the guest's memory 2.129 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.640
Then I find very few patterns in the guest's memory after 3 seconds 4.723 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
# read cache
When I mount the USB drive again 0.154
And I read the content of the test FS 0.427
Then patterns cover at least 99% of the test FS size in the guest's memory 1.854 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.320
Then I find very few patterns in the guest's memory after 3 seconds 4.686 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
After features/support/hooks.rb:335 0.850
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
56.155
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.371
And I prepare Tails for memory erasure tests 0.416
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.613
Then I find very few patterns in the guest's memory 1.580 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.250
Then patterns cover at least 99% of the test FS size in the guest's memory 1.732 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.551
Then I find very few patterns in the guest's memory after 3 seconds 4.542 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
# read cache
When I mount the USB drive again 4.042
And I read the content of the test FS 0.349
Then patterns cover at least 99% of the test FS size in the guest's memory 1.786 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.407
Then I find very few patterns in the guest's memory after 3 seconds 4.509 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
After features/support/hooks.rb:335 0.614
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
52.772
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.555
And I prepare Tails for memory erasure tests 0.499
When I fill a 128 MiB file with a known pattern on the root filesystem 21.912
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.883
Then patterns cover at least 128 MiB in the guest's memory 1.437 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.477 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
After features/support/hooks.rb:335 3.782
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
4:15.754
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:37.461
And I prepare Tails for memory erasure tests 0.324
When I fill a 128 MiB file with a known pattern on the persistent filesystem 17.083
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.880 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
After features/support/hooks.rb:335 3.487
After features/support/hooks.rb:104 0.008