Project Number Date
test_Tails_ISO_17367-per-setting-dconf-persistence 10 09 Aug 2026, 19:15

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 7:15.199 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
19.419
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 6.208
And I prepare Tails for memory erasure tests 0.359
When I start a process allocating 128 MiB of memory with a known pattern 2.217
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.784 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.223
Then I find very few patterns in the guest's memory after 5 seconds 7.626 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
After features/support/hooks.rb:339 0.846
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
19.547
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 0.305
And I find very few patterns in the guest's memory 2.576 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.463
Then patterns cover at least 99% of the test FS size in the guest's memory 2.830 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.425
Then I find very few patterns in the guest's memory after 3 seconds 5.686 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
After features/support/hooks.rb:339 0.674
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
36.493
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 6.277
And I prepare Tails for memory erasure tests 0.307
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.116
Then I find very few patterns in the guest's memory 2.794 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.585
Then patterns cover at least 75% of the test FS size in the guest's memory 3.225 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.674
Then I find very few patterns in the guest's memory after 3 seconds 5.744 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
# read cache
When I mount the USB drive again 0.186
And I read the content of the test FS 0.615
Then patterns cover at least 99% of the test FS size in the guest's memory 2.882 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.412
Then I find very few patterns in the guest's memory after 3 seconds 5.670 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
After features/support/hooks.rb:339 0.681
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:0.594
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 6.131
And I prepare Tails for memory erasure tests 0.344
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.564
Then I find very few patterns in the guest's memory 2.560 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.110
Then patterns cover at least 99% of the test FS size in the guest's memory 2.681 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.471
Then I find very few patterns in the guest's memory after 3 seconds 5.521 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
# read cache
When I mount the USB drive again 4.283
And I read the content of the test FS 0.398
Then patterns cover at least 99% of the test FS size in the guest's memory 2.729 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.370
Then I find very few patterns in the guest's memory after 3 seconds 5.425 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
After features/support/hooks.rb:339 0.686
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
44.410
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 6.236
And I prepare Tails for memory erasure tests 0.308
When I fill a 128 MiB file with a known pattern on the root filesystem 13.734
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.328
Then patterns cover at least 128 MiB in the guest's memory 2.094 
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 20.703 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:339 3.612
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:14.733
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 3:43.138
And I prepare Tails for memory erasure tests 0.255
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.273
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.060 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
After features/support/hooks.rb:339 3.502
After features/support/hooks.rb:108 0.008