Project Number Date
test_Tails_ISO_tails-circumvention-settings-developers-doc 2 25 Aug 2026, 21:23

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 7:4.222 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
19.644
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 6.291
And I prepare Tails for memory erasure tests 0.286
When I start a process allocating 128 MiB of memory with a known pattern 2.181
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.979 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.214
Then I find very few patterns in the guest's memory after 5 seconds 7.691 
Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)
After features/support/hooks.rb:339 0.536
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
19.336
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 6.138
And I prepare Tails for memory erasure tests 0.269
And I find very few patterns in the guest's memory 2.680 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.388
Then patterns cover at least 99% of the test FS size in the guest's memory 2.913 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.378
Then I find very few patterns in the guest's memory after 3 seconds 5.567 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
After features/support/hooks.rb:339 0.864
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
35.478
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 6.204
And I prepare Tails for memory erasure tests 0.268
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.129
Then I find very few patterns in the guest's memory 2.600 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.530
Then patterns cover at least 75% of the test FS size in the guest's memory 2.985 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.638
Then I find very few patterns in the guest's memory after 3 seconds 5.471 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
# read cache
When I mount the USB drive again 0.172
And I read the content of the test FS 0.570
Then patterns cover at least 99% of the test FS size in the guest's memory 2.933 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.388
Then I find very few patterns in the guest's memory after 3 seconds 5.585 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
After features/support/hooks.rb:339 0.735
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:2.441
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 6.142
And I prepare Tails for memory erasure tests 0.299
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 30.941
Then I find very few patterns in the guest's memory 2.539 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.021
Then patterns cover at least 99% of the test FS size in the guest's memory 2.772 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.456
Then I find very few patterns in the guest's memory after 3 seconds 5.460 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
# read cache
When I mount the USB drive again 4.083
And I read the content of the test FS 0.332
Then patterns cover at least 99% of the test FS size in the guest's memory 2.406 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.346
Then I find very few patterns in the guest's memory after 3 seconds 5.639 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
After features/support/hooks.rb:339 0.855
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
43.921
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 6.261
And I prepare Tails for memory erasure tests 0.264
When I fill a 128 MiB file with a known pattern on the root filesystem 12.907
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.484
Then patterns cover at least 128 MiB in the guest's memory 2.261 
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 20.735 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:339 3.616
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:3.400
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 3:32.621
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 9.518
When I trigger shutdown 0.007
Then I find very few patterns in the guest's memory after 20 seconds 20.977 
Pattern coverage: 0.000% (0 MiB out of 1508 MiB reference memory)
After features/support/hooks.rb:339 3.713
After features/support/hooks.rb:108 0.016