Project Number Date
test_Tails_ISO_21720-less-error-prone-emergency-release 7 24 Aug 2026, 13:38

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 7:55.761 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
20.276
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 6.487
And I prepare Tails for memory erasure tests 0.321
When I start a process allocating 128 MiB of memory with a known pattern 2.214
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 3.063 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.194
Then I find very few patterns in the guest's memory after 5 seconds 7.994 
Pattern coverage: 0.000% (0 MiB out of 1460 MiB reference memory)
After features/support/hooks.rb:339 1.184
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
20.677
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 6.672
And I prepare Tails for memory erasure tests 0.313
And I find very few patterns in the guest's memory 2.569 
Pattern coverage: 0.000% (0 MiB out of 1462 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.625
Then patterns cover at least 99% of the test FS size in the guest's memory 3.054 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.445
Then I find very few patterns in the guest's memory after 3 seconds 5.996 
Pattern coverage: 0.000% (0 MiB out of 1462 MiB reference memory)
After features/support/hooks.rb:339 1.097
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
37.788
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 6.464
And I prepare Tails for memory erasure tests 0.315
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.253
Then I find very few patterns in the guest's memory 2.894 
Pattern coverage: 0.000% (0 MiB out of 1458 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.847
Then patterns cover at least 75% of the test FS size in the guest's memory 3.074 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.760
Then I find very few patterns in the guest's memory after 3 seconds 5.809 
Pattern coverage: 0.000% (0 MiB out of 1458 MiB reference memory)
# read cache
When I mount the USB drive again 0.209
And I read the content of the test FS 0.608
Then patterns cover at least 99% of the test FS size in the guest's memory 3.070 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.474
Then I find very few patterns in the guest's memory after 3 seconds 6.006 
Pattern coverage: 0.000% (0 MiB out of 1458 MiB reference memory)
After features/support/hooks.rb:339 0.988
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:6.698
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 7.034
And I prepare Tails for memory erasure tests 0.417
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 32.525
Then I find very few patterns in the guest's memory 2.851 
Pattern coverage: 0.000% (0 MiB out of 1460 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.373
Then patterns cover at least 99% of the test FS size in the guest's memory 2.744 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.461
Then I find very few patterns in the guest's memory after 3 seconds 5.604 
Pattern coverage: 0.000% (0 MiB out of 1460 MiB reference memory)
# read cache
When I mount the USB drive again 4.303
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 2.786 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.437
Then I find very few patterns in the guest's memory after 3 seconds 5.840 
Pattern coverage: 0.000% (0 MiB out of 1460 MiB reference memory)
After features/support/hooks.rb:339 0.568
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
44.378
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 6.238
And I prepare Tails for memory erasure tests 0.273
When I fill a 128 MiB file with a known pattern on the root filesystem 13.111
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.661
Then patterns cover at least 128 MiB in the guest's memory 2.280 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.008
Then I find very few patterns in the guest's memory after 20 seconds 20.803 
Pattern coverage: 0.000% (0 MiB out of 1463 MiB reference memory)
After features/support/hooks.rb:339 3.663
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:45.942
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.010
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:15.516
And I prepare Tails for memory erasure tests 0.364
When I fill a 128 MiB file with a known pattern on the persistent filesystem 8.845
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.209 
Pattern coverage: 0.000% (0 MiB out of 1459 MiB reference memory)
After features/support/hooks.rb:339 3.805
After features/support/hooks.rb:108 0.016