Project Number Date
test_Tails_ISO_stable 6402 25 May 2026, 11:20

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 7:18.297 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
16.763
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 0.324
When I start a process allocating 128 MiB of memory with a known pattern 1.157
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.908 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.183
Then I find very few patterns in the guest's memory after 5 seconds 6.715 
Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)
After features/support/hooks.rb:335 0.937
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
16.847
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 6.447
And I prepare Tails for memory erasure tests 0.307
And I find very few patterns in the guest's memory 1.645 
Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.495
Then patterns cover at least 99% of the test FS size in the guest's memory 1.897 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.262
Then I find very few patterns in the guest's memory after 3 seconds 4.792 
Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)
After features/support/hooks.rb:335 0.871
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
31.056
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 6.463
And I prepare Tails for memory erasure tests 0.339
When I plug and mount a 128 MiB USB drive with a vfat filesystem 4.986
Then I find very few patterns in the guest's memory 1.657 
Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.575
Then patterns cover at least 75% of the test FS size in the guest's memory 2.017 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.630
Then I find very few patterns in the guest's memory after 3 seconds 4.713 
Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)
# read cache
When I mount the USB drive again 0.142
And I read the content of the test FS 0.398
Then patterns cover at least 99% of the test FS size in the guest's memory 2.002 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.358
Then I find very few patterns in the guest's memory after 3 seconds 4.769 
Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)
After features/support/hooks.rb:335 0.737
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
56.319
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 6.560
And I prepare Tails for memory erasure tests 0.348
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.256
Then I find very few patterns in the guest's memory 1.652 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.322
Then patterns cover at least 99% of the test FS size in the guest's memory 1.753 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.561
Then I find very few patterns in the guest's memory after 3 seconds 4.818 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
# read cache
When I mount the USB drive again 3.833
And I read the content of the test FS 0.359
Then patterns cover at least 99% of the test FS size in the guest's memory 1.890 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.408
Then I find very few patterns in the guest's memory after 3 seconds 4.552 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
After features/support/hooks.rb:335 1.001
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
51.942
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 6.375
And I prepare Tails for memory erasure tests 0.466
When I fill a 128 MiB file with a known pattern on the root filesystem 21.424
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.757
Then patterns cover at least 128 MiB in the guest's memory 1.441 
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 20.471 
Pattern coverage: 0.000% (0 MiB out of 1463 MiB reference memory)
After features/support/hooks.rb:335 3.614
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
4:25.368
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:45.984
And I prepare Tails for memory erasure tests 0.305
When I fill a 128 MiB file with a known pattern on the persistent filesystem 18.200
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.873 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
After features/support/hooks.rb:335 3.403
After features/support/hooks.rb:104 0.011