Project Number Date
test_Tails_ISO_devel 4513 25 Jul 2026, 11:26

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 8:10.365 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
19.208
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.672
And I prepare Tails for memory erasure tests 0.444
When I start a process allocating 128 MiB of memory with a known pattern 2.285
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.574 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.318
Then I find very few patterns in the guest's memory after 5 seconds 6.912 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:339 1.058
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
18.431
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.004
Given I have started Tails from DVD without network and logged in 6.662
And I prepare Tails for memory erasure tests 0.336
And I find very few patterns in the guest's memory 1.801 
Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.890
Then patterns cover at least 99% of the test FS size in the guest's memory 2.209 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.627
Then I find very few patterns in the guest's memory after 3 seconds 4.903 
Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)
After features/support/hooks.rb:339 0.850
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
33.747
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 6.495
And I prepare Tails for memory erasure tests 0.372
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.477
Then I find very few patterns in the guest's memory 2.005 
Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.893
Then patterns cover at least 75% of the test FS size in the guest's memory 2.448 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.928
Then I find very few patterns in the guest's memory after 3 seconds 4.756 
Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)
# read cache
When I mount the USB drive again 0.170
And I read the content of the test FS 0.477
Then patterns cover at least 99% of the test FS size in the guest's memory 2.121 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.530
Then I find very few patterns in the guest's memory after 3 seconds 5.068 
Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)
After features/support/hooks.rb:339 1.077
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:3.058
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.007
Given I have started Tails from DVD without network and logged in 6.880
And I prepare Tails for memory erasure tests 0.399
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 32.559
Then I find very few patterns in the guest's memory 1.869 
Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.247
Then patterns cover at least 99% of the test FS size in the guest's memory 2.030 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.536
Then I find very few patterns in the guest's memory after 3 seconds 4.655 
Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)
# read cache
When I mount the USB drive again 5.074
And I read the content of the test FS 0.315
Then patterns cover at least 99% of the test FS size in the guest's memory 2.231 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.454
Then I find very few patterns in the guest's memory after 3 seconds 4.805 
Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)
After features/support/hooks.rb:339 0.762
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:2.814
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 6.664
And I prepare Tails for memory erasure tests 0.371
When I fill a 128 MiB file with a known pattern on the root filesystem 31.974
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.580
Then patterns cover at least 128 MiB in the guest's memory 1.624 
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 20.593 
Pattern coverage: 0.000% (0 MiB out of 1464 MiB reference memory)
After features/support/hooks.rb:339 3.777
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:53.105
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.005
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:5.474
And I prepare Tails for memory erasure tests 0.336
When I fill a 128 MiB file with a known pattern on the persistent filesystem 26.294
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.993 
Pattern coverage: 0.000% (0 MiB out of 1515 MiB reference memory)
After features/support/hooks.rb:339 3.762
After features/support/hooks.rb:108 0.013