Project Number Date
test_Tails_ISO_17367-per-setting-dconf-persistence 6 06 Aug 2026, 22:57

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 8:4.275 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
21.309
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 6.254
And I prepare Tails for memory erasure tests 0.289
When I start a process allocating 128 MiB of memory with a known pattern 2.192
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.998 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.198
Then I find very few patterns in the guest's memory after 5 seconds 9.376 
Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)
After features/support/hooks.rb:339 1.013
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
26.473
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 6.297
And I prepare Tails for memory erasure tests 0.315
And I find very few patterns in the guest's memory 4.641 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.824
Then patterns cover at least 99% of the test FS size in the guest's memory 5.222 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.474
Then I find very few patterns in the guest's memory after 3 seconds 7.698 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
After features/support/hooks.rb:339 0.779
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
56.031
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 18.221
And I prepare Tails for memory erasure tests 0.288
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.089
Then I find very few patterns in the guest's memory 4.991 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.637
Then patterns cover at least 75% of the test FS size in the guest's memory 5.553 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.719
Then I find very few patterns in the guest's memory after 3 seconds 7.290 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
# read cache
When I mount the USB drive again 0.173
And I read the content of the test FS 0.583
Then patterns cover at least 99% of the test FS size in the guest's memory 3.692 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.429
Then I find very few patterns in the guest's memory after 3 seconds 6.360 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:339 0.717
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:4.383
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 6.214
And I prepare Tails for memory erasure tests 0.297
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.567
Then I find very few patterns in the guest's memory 2.947 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.195
Then patterns cover at least 99% of the test FS size in the guest's memory 2.789 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.527
Then I find very few patterns in the guest's memory after 3 seconds 5.692 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
# read cache
When I mount the USB drive again 4.257
And I read the content of the test FS 0.387
Then patterns cover at least 99% of the test FS size in the guest's memory 3.004 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.443
Then I find very few patterns in the guest's memory after 3 seconds 7.057 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
After features/support/hooks.rb:339 0.927
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
44.373
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 0.301
When I fill a 128 MiB file with a known pattern on the root filesystem 13.508
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.483
Then patterns cover at least 128 MiB in the guest's memory 2.128 
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 20.707 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
After features/support/hooks.rb:339 3.708
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:31.704
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.007
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:0.145
And I prepare Tails for memory erasure tests 0.323
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.077
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.151 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
After features/support/hooks.rb:339 3.500
After features/support/hooks.rb:108 0.055