Project Number Date
test_Tails_ISO_devel 4549 14 Aug 2026, 11:16

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 7:43.538 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
20.212
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 6.258
And I prepare Tails for memory erasure tests 0.364
When I start a process allocating 128 MiB of memory with a known pattern 2.197
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.939 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.784
Then I find very few patterns in the guest's memory after 5 seconds 7.668 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
After features/support/hooks.rb:339 0.951
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
19.916
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.001
Given I have started Tails from DVD without network and logged in 6.267
And I prepare Tails for memory erasure tests 0.275
And I find very few patterns in the guest's memory 2.827 
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 1.421
Then patterns cover at least 99% of the test FS size in the guest's memory 3.027 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.423
Then I find very few patterns in the guest's memory after 3 seconds 5.673 
Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)
After features/support/hooks.rb:339 0.809
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
37.294
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.001
Given I have started Tails from DVD without network and logged in 6.237
And I prepare Tails for memory erasure tests 0.322
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.628
Then I find very few patterns in the guest's memory 2.939 
Pattern coverage: 0.000% (0 MiB out of 1464 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.623
Then patterns cover at least 75% of the test FS size in the guest's memory 3.038 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.720
Then I find very few patterns in the guest's memory after 3 seconds 5.961 
Pattern coverage: 0.000% (0 MiB out of 1464 MiB reference memory)
# read cache
When I mount the USB drive again 0.179
And I read the content of the test FS 0.596
Then patterns cover at least 99% of the test FS size in the guest's memory 2.906 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.489
Then I find very few patterns in the guest's memory after 3 seconds 5.649 
Pattern coverage: 0.000% (0 MiB out of 1464 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
1:9.318
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 6.232
And I prepare Tails for memory erasure tests 0.317
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 37.075
Then I find very few patterns in the guest's memory 2.658 
Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.172
Then patterns cover at least 99% of the test FS size in the guest's memory 2.871 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.508
Then I find very few patterns in the guest's memory after 3 seconds 5.305 
Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)
# read cache
When I mount the USB drive again 3.904
And I read the content of the test FS 0.360
Then patterns cover at least 99% of the test FS size in the guest's memory 2.666 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.436
Then I find very few patterns in the guest's memory after 3 seconds 5.808 
Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)
After features/support/hooks.rb:339 1.179
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
45.014
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 6.503
And I prepare Tails for memory erasure tests 0.344
When I fill a 128 MiB file with a known pattern on the root filesystem 12.921
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.903
Then patterns cover at least 128 MiB in the guest's memory 2.588 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.007
Then I find very few patterns in the guest's memory after 20 seconds 20.746 
Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)
After features/support/hooks.rb:339 3.548
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:31.780
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 4:0.047
And I prepare Tails for memory erasure tests 0.263
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.162
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.304 
Pattern coverage: 0.000% (0 MiB out of 1453 MiB reference memory)
After features/support/hooks.rb:339 3.441
After features/support/hooks.rb:108 0.050