Project Number Date
test_Tails_ISO_stable 6489 06 Jul 2026, 07:38

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 8:3.755 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
16.750
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 6.463
And I prepare Tails for memory erasure tests 0.320
When I start a process allocating 128 MiB of memory with a known pattern 1.138
# 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 0.193
Then I find very few patterns in the guest's memory after 5 seconds 6.717 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
After features/support/hooks.rb:339 0.959
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
17.551
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 6.612
And I prepare Tails for memory erasure tests 0.456
And I find very few patterns in the guest's memory 1.764 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.570
Then patterns cover at least 99% of the test FS size in the guest's memory 2.087 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.315
Then I find very few patterns in the guest's memory after 3 seconds 4.744 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
After features/support/hooks.rb:339 0.612
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
32.408
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 6.541
And I prepare Tails for memory erasure tests 0.570
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.375
Then I find very few patterns in the guest's memory 1.916 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.515
Then patterns cover at least 75% of the test FS size in the guest's memory 2.019 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.691
Then I find very few patterns in the guest's memory after 3 seconds 4.798 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
# read cache
When I mount the USB drive again 0.169
And I read the content of the test FS 0.457
Then patterns cover at least 99% of the test FS size in the guest's memory 2.154 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.418
Then I find very few patterns in the guest's memory after 3 seconds 4.778 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
After features/support/hooks.rb:339 0.941
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:1.887
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 6.710
And I prepare Tails for memory erasure tests 0.335
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 32.834
Then I find very few patterns in the guest's memory 1.901 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.215
Then patterns cover at least 99% of the test FS size in the guest's memory 1.928 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.510
Then I find very few patterns in the guest's memory after 3 seconds 4.847 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
# read cache
When I mount the USB drive again 4.190
And I read the content of the test FS 0.294
Then patterns cover at least 99% of the test FS size in the guest's memory 1.925 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.406
Then I find very few patterns in the guest's memory after 3 seconds 4.786 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
After features/support/hooks.rb:339 1.007
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
59.499
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.008
Given I have started Tails from DVD without network and logged in 6.646
And I prepare Tails for memory erasure tests 0.425
When I fill a 128 MiB file with a known pattern on the root filesystem 27.843
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.370
Then patterns cover at least 128 MiB in the guest's memory 1.642 
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 20.565 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
After features/support/hooks.rb:339 3.618
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:55.657
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.004
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:7.081
And I prepare Tails for memory erasure tests 0.419
When I fill a 128 MiB file with a known pattern on the persistent filesystem 27.164
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.987 
Pattern coverage: 0.000% (0 MiB out of 1512 MiB reference memory)
After features/support/hooks.rb:339 3.592
After features/support/hooks.rb:108 0.009