Project Number Date
test_Tails_ISO_devel 4490 12 Jul 2026, 11:23

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 7:29.108 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
17.473
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 6.526
And I prepare Tails for memory erasure tests 0.344
When I start a process allocating 128 MiB of memory with a known pattern 1.146
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.843 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.734
Then I find very few patterns in the guest's memory after 5 seconds 6.876 
Pattern coverage: 0.000% (0 MiB out of 1542 MiB reference memory)
After features/support/hooks.rb:339 0.766
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
16.748
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 6.515
And I prepare Tails for memory erasure tests 0.411
And I find very few patterns in the guest's memory 1.598 
Pattern coverage: 0.000% (0 MiB out of 1547 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.468
Then patterns cover at least 99% of the test FS size in the guest's memory 1.822 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.309
Then I find very few patterns in the guest's memory after 3 seconds 4.621 
Pattern coverage: 0.000% (0 MiB out of 1547 MiB reference memory)
After features/support/hooks.rb:339 1.207
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
30.965
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 6.618
And I prepare Tails for memory erasure tests 0.309
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.088
Then I find very few patterns in the guest's memory 1.621 
Pattern coverage: 0.000% (0 MiB out of 1550 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.485
Then patterns cover at least 75% of the test FS size in the guest's memory 2.021 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.687
Then I find very few patterns in the guest's memory after 3 seconds 4.694 
Pattern coverage: 0.000% (0 MiB out of 1550 MiB reference memory)
# read cache
When I mount the USB drive again 0.137
And I read the content of the test FS 0.385
Then patterns cover at least 99% of the test FS size in the guest's memory 1.822 
Pattern coverage: 100.000% (127 MiB out of 127 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 4.659 
Pattern coverage: 0.000% (0 MiB out of 1550 MiB reference memory)
After features/support/hooks.rb:339 0.786
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
57.050
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 6.423
And I prepare Tails for memory erasure tests 0.302
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.236
Then I find very few patterns in the guest's memory 1.738 
Pattern coverage: 0.000% (0 MiB out of 1543 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.213
Then patterns cover at least 99% of the test FS size in the guest's memory 1.634 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.525
Then I find very few patterns in the guest's memory after 3 seconds 4.467 
Pattern coverage: 0.000% (0 MiB out of 1543 MiB reference memory)
# read cache
When I mount the USB drive again 4.242
And I read the content of the test FS 0.300
Then patterns cover at least 99% of the test FS size in the guest's memory 1.827 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.473
Then I find very few patterns in the guest's memory after 3 seconds 4.665 
Pattern coverage: 0.000% (0 MiB out of 1543 MiB reference memory)
After features/support/hooks.rb:339 0.758
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
56.824
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 6.403
And I prepare Tails for memory erasure tests 0.366
When I fill a 128 MiB file with a known pattern on the root filesystem 26.252
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.818
Then patterns cover at least 128 MiB in the guest's memory 1.442 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.534 
Pattern coverage: 0.000% (0 MiB out of 1552 MiB reference memory)
After features/support/hooks.rb:339 3.937
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:30.046
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 3:40.584
And I prepare Tails for memory erasure tests 0.274
When I fill a 128 MiB file with a known pattern on the persistent filesystem 28.276
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.904 
Pattern coverage: 0.000% (0 MiB out of 1517 MiB reference memory)
After features/support/hooks.rb:339 3.722
After features/support/hooks.rb:108 0.012