Project Number Date
test_Tails_ISO_devel 4478 01 Jul 2026, 11:16

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 7:53.691 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
17.860
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 6.381
And I prepare Tails for memory erasure tests 0.345
When I start a process allocating 128 MiB of memory with a known pattern 2.292
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.916 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.196
Then I find very few patterns in the guest's memory after 5 seconds 6.728 
Pattern coverage: 0.000% (0 MiB out of 1499 MiB reference memory)
After features/support/hooks.rb:339 0.901
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
17.071
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 6.360
And I prepare Tails for memory erasure tests 0.351
And I find very few patterns in the guest's memory 1.655 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.576
Then patterns cover at least 99% of the test FS size in the guest's memory 2.018 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.291
Then I find very few patterns in the guest's memory after 3 seconds 4.816 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
After features/support/hooks.rb:339 0.691
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
31.818
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 6.518
And I prepare Tails for memory erasure tests 0.402
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.245
Then I find very few patterns in the guest's memory 1.888 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.476
Then patterns cover at least 75% of the test FS size in the guest's memory 1.971 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.744
Then I find very few patterns in the guest's memory after 3 seconds 4.695 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
# read cache
When I mount the USB drive again 0.131
And I read the content of the test FS 0.432
Then patterns cover at least 99% of the test FS size in the guest's memory 1.937 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.355
Then I find very few patterns in the guest's memory after 3 seconds 5.018 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
After features/support/hooks.rb:339 0.930
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
56.447
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 6.571
And I prepare Tails for memory erasure tests 0.374
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.135
Then I find very few patterns in the guest's memory 1.657 
Pattern coverage: 0.000% (0 MiB out of 1503 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.182
Then patterns cover at least 99% of the test FS size in the guest's memory 1.900 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.580
Then I find very few patterns in the guest's memory after 3 seconds 4.665 
Pattern coverage: 0.000% (0 MiB out of 1503 MiB reference memory)
# read cache
When I mount the USB drive again 4.164
And I read the content of the test FS 0.286
Then patterns cover at least 99% of the test FS size in the guest's memory 1.857 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.385
Then I find very few patterns in the guest's memory after 3 seconds 4.685 
Pattern coverage: 0.000% (0 MiB out of 1503 MiB reference memory)
After features/support/hooks.rb:339 0.823
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:5.398
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 6.744
And I prepare Tails for memory erasure tests 0.368
When I fill a 128 MiB file with a known pattern on the root filesystem 34.012
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.178
Then patterns cover at least 128 MiB in the guest's memory 1.543 
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 20.545 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
After features/support/hooks.rb:339 3.713
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:45.095
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 3:58.563
And I prepare Tails for memory erasure tests 0.304
When I fill a 128 MiB file with a known pattern on the persistent filesystem 25.388
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.833 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
After features/support/hooks.rb:339 3.613
After features/support/hooks.rb:108 0.009