Project Number Date
test_Tails_ISO_stable 6725 06 Oct 2026, 11:55

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 7:41.626 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
31.010
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.001
Given I have started Tails from DVD without network and logged in 17.822
And I prepare Tails for memory erasure tests 0.281
When I start a process allocating 128 MiB of memory with a known pattern 2.183
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.988 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.230
Then I find very few patterns in the guest's memory after 5 seconds 7.503 
Pattern coverage: 0.000% (0 MiB out of 1404 MiB reference memory)
After features/support/hooks.rb:339 0.660
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
19.327
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.001
Given I have started Tails from DVD without network and logged in 6.127
And I prepare Tails for memory erasure tests 0.351
And I find very few patterns in the guest's memory 2.584 
Pattern coverage: 0.000% (0 MiB out of 1401 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.478
Then patterns cover at least 99% of the test FS size in the guest's memory 2.822 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.360
Then I find very few patterns in the guest's memory after 3 seconds 5.602 
Pattern coverage: 0.000% (0 MiB out of 1401 MiB reference memory)
After features/support/hooks.rb:339 0.819
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
36.444
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.001
Given I have started Tails from DVD without network and logged in 6.132
And I prepare Tails for memory erasure tests 0.312
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.200
Then I find very few patterns in the guest's memory 2.848 
Pattern coverage: 0.000% (0 MiB out of 1410 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.467
Then patterns cover at least 75% of the test FS size in the guest's memory 3.003 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.651
Then I find very few patterns in the guest's memory after 3 seconds 5.963 
Pattern coverage: 0.000% (0 MiB out of 1410 MiB reference memory)
# read cache
When I mount the USB drive again 0.184
And I read the content of the test FS 0.571
Then patterns cover at least 99% of the test FS size in the guest's memory 2.970 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.501
Then I find very few patterns in the guest's memory after 3 seconds 5.635 
Pattern coverage: 0.000% (0 MiB out of 1410 MiB reference memory)
After features/support/hooks.rb:339 0.713
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
59.439
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.001
Given I have started Tails from DVD without network and logged in 6.111
And I prepare Tails for memory erasure tests 0.311
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 27.385
Then I find very few patterns in the guest's memory 2.640 
Pattern coverage: 0.000% (0 MiB out of 1391 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.098
Then patterns cover at least 99% of the test FS size in the guest's memory 2.812 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.434
Then I find very few patterns in the guest's memory after 3 seconds 5.518 
Pattern coverage: 0.000% (0 MiB out of 1391 MiB reference memory)
# read cache
When I mount the USB drive again 4.098
And I read the content of the test FS 0.348
Then patterns cover at least 99% of the test FS size in the guest's memory 2.650 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.410
Then I find very few patterns in the guest's memory after 3 seconds 5.617 
Pattern coverage: 0.000% (0 MiB out of 1391 MiB reference memory)
After features/support/hooks.rb:339 0.752
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
55.986
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.001
Given I have started Tails from DVD without network and logged in 17.993
And I prepare Tails for memory erasure tests 0.340
When I fill a 128 MiB file with a known pattern on the root filesystem 13.209
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.437
Then patterns cover at least 128 MiB in the guest's memory 2.215 
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 20.778 
Pattern coverage: 0.000% (0 MiB out of 1405 MiB reference memory)
After features/support/hooks.rb:339 3.541
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:19.419
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:48.182
And I prepare Tails for memory erasure tests 0.275
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.819
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.136 
Pattern coverage: 0.000% (0 MiB out of 1438 MiB reference memory)
After features/support/hooks.rb:339 3.710
After features/support/hooks.rb:108 0.009