Project Number Date
test_Tails_ISO_devel 4377 05 May 2026, 13:58

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 8:19.526 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
18.549
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 7.297
And I prepare Tails for memory erasure tests 0.448
When I start a process allocating 128 MiB of memory with a known pattern 1.144
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.162 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.180
Then I find very few patterns in the guest's memory after 5 seconds 7.316 
Pattern coverage: 0.000% (0 MiB out of 1539 MiB reference memory)
After features/support/hooks.rb:331 0.866
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
31.768
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 19.691
And I prepare Tails for memory erasure tests 0.510
And I find very few patterns in the guest's memory 2.223 
Pattern coverage: 0.000% (0 MiB out of 1537 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.863
Then patterns cover at least 99% of the test FS size in the guest's memory 2.387 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.322
Then I find very few patterns in the guest's memory after 3 seconds 4.769 
Pattern coverage: 0.000% (0 MiB out of 1537 MiB reference memory)
After features/support/hooks.rb:331 1.044
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
34.899
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 7.429
And I prepare Tails for memory erasure tests 0.429
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.660
Then I find very few patterns in the guest's memory 2.035 
Pattern coverage: 0.000% (0 MiB out of 1542 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.645
Then patterns cover at least 75% of the test FS size in the guest's memory 2.010 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.806
Then I find very few patterns in the guest's memory after 3 seconds 5.307 
Pattern coverage: 0.000% (0 MiB out of 1542 MiB reference memory)
# read cache
When I mount the USB drive again 0.262
And I read the content of the test FS 0.511
Then patterns cover at least 99% of the test FS size in the guest's memory 2.388 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.523
Then I find very few patterns in the guest's memory after 3 seconds 4.890 
Pattern coverage: 0.000% (0 MiB out of 1542 MiB reference memory)
After features/support/hooks.rb:331 0.872
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:0.864
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.673
And I prepare Tails for memory erasure tests 0.411
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 30.104
Then I find very few patterns in the guest's memory 2.049 
Pattern coverage: 0.000% (0 MiB out of 1537 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.500
Then patterns cover at least 99% of the test FS size in the guest's memory 1.929 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.590
Then I find very few patterns in the guest's memory after 3 seconds 5.214 
Pattern coverage: 0.000% (0 MiB out of 1537 MiB reference memory)
# read cache
When I mount the USB drive again 4.459
And I read the content of the test FS 0.364
Then patterns cover at least 99% of the test FS size in the guest's memory 2.151 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.509
Then I find very few patterns in the guest's memory after 3 seconds 4.904 
Pattern coverage: 0.000% (0 MiB out of 1537 MiB reference memory)
After features/support/hooks.rb:331 0.891
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
58.057
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 6.663
And I prepare Tails for memory erasure tests 0.343
When I fill a 128 MiB file with a known pattern on the root filesystem 26.087
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.388
Then patterns cover at least 128 MiB in the guest's memory 1.837 
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 20.728 
Pattern coverage: 0.000% (0 MiB out of 1535 MiB reference memory)
After features/support/hooks.rb:331 3.544
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:55.386
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:16.572
And I prepare Tails for memory erasure tests 0.390
When I fill a 128 MiB file with a known pattern on the persistent filesystem 17.231
When I trigger shutdown 0.007
Then I find very few patterns in the guest's memory after 20 seconds 21.185 
Pattern coverage: 0.000% (0 MiB out of 1519 MiB reference memory)
After features/support/hooks.rb:331 3.488
After features/support/hooks.rb:100 0.010