Project Number Date
test_Tails_ISO_21352-remove-haveged-and-rngd 1 14 Jul 2026, 21:43

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 8:2.781 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
19.354
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 6.849
And I prepare Tails for memory erasure tests 0.404
When I start a process allocating 128 MiB of memory with a known pattern 2.280
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.089 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.939
Then I find very few patterns in the guest's memory after 5 seconds 6.790 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
After features/support/hooks.rb:339 0.928
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
17.610
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 6.570
And I prepare Tails for memory erasure tests 0.407
And I find very few patterns in the guest's memory 1.755 
Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.681
Then patterns cover at least 99% of the test FS size in the guest's memory 2.082 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.413
Then I find very few patterns in the guest's memory after 3 seconds 4.699 
Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)
After features/support/hooks.rb:339 0.722
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
32.831
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 6.498
And I prepare Tails for memory erasure tests 0.475
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.486
Then I find very few patterns in the guest's memory 1.992 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.569
Then patterns cover at least 75% of the test FS size in the guest's memory 1.988 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.729
Then I find very few patterns in the guest's memory after 3 seconds 4.879 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
# read cache
When I mount the USB drive again 0.156
And I read the content of the test FS 0.380
Then patterns cover at least 99% of the test FS size in the guest's memory 2.352 
Pattern coverage: 100.000% (127 MiB out of 127 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 4.859 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
After features/support/hooks.rb:339 0.976
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:0.351
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 0.310
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 31.236
Then I find very few patterns in the guest's memory 1.828 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.281
Then patterns cover at least 99% of the test FS size in the guest's memory 1.933 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.448
Then I find very few patterns in the guest's memory after 3 seconds 4.756 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
# read cache
When I mount the USB drive again 4.332
And I read the content of the test FS 0.343
Then patterns cover at least 99% of the test FS size in the guest's memory 1.994 
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 4.886 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
After features/support/hooks.rb:339 1.086
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
58.556
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 6.820
And I prepare Tails for memory erasure tests 0.369
When I fill a 128 MiB file with a known pattern on the root filesystem 27.368
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.760
Then patterns cover at least 128 MiB in the guest's memory 1.678 
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 20.552 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
After features/support/hooks.rb:339 3.525
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:54.077
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 4:7.113
And I prepare Tails for memory erasure tests 0.312
When I fill a 128 MiB file with a known pattern on the persistent filesystem 25.620
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.024 
Pattern coverage: 0.000% (0 MiB out of 1524 MiB reference memory)
After features/support/hooks.rb:339 3.696
After features/support/hooks.rb:108 0.044