Project Number Date
test_Tails_ISO_20898-tinyrpc-drop 3 15 Apr 2025, 21:29

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 11:33.498 Passed
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.
24.152
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 8.450
And I prepare Tails for memory erasure tests 0.663
When I start a process allocating 128 MiB of memory with a known pattern 2.499
Then patterns cover at least 128 MiB in the guest's memory 3.275

Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)

When I kill the allocating process 0.612
Then I find very few patterns in the guest's memory after 5 seconds 8.649

Pattern coverage: 0.000% (0 MiB out of 873 MiB reference memory)

After features/support/hooks.rb:330 1.055
After features/support/hooks.rb:100 0.000
29.039
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.008
Given I have started Tails from DVD without network and logged in 8.676
And I prepare Tails for memory erasure tests 0.481
And I find very few patterns in the guest's memory 5.593

Pattern coverage: 0.000% (0 MiB out of 892 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.445
Then patterns cover at least 99% of the test FS size in the guest's memory 4.596

Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)

When I umount "/mnt" 0.410
Then I find very few patterns in the guest's memory after 3 seconds 6.835

Pattern coverage: 0.000% (0 MiB out of 892 MiB reference memory)

After features/support/hooks.rb:330 1.064
After features/support/hooks.rb:100 0.000
51.328
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 8.478
And I prepare Tails for memory erasure tests 0.476
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.241
Then I find very few patterns in the guest's memory 3.959

Pattern coverage: 0.000% (0 MiB out of 880 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.234
Then patterns cover at least 75% of the test FS size in the guest's memory 4.878

Pattern coverage: 87.277% (111 MiB out of 127 MiB reference memory)

When I umount the USB drive 0.844
Then I find very few patterns in the guest's memory after 3 seconds 7.385

Pattern coverage: 0.000% (0 MiB out of 880 MiB reference memory)

# read cache
When I mount the USB drive again 0.458
And I read the content of the test FS 0.858
Then patterns cover at least 99% of the test FS size in the guest's memory 4.230

Pattern coverage: 100.596% (128 MiB out of 127 MiB reference memory)

When I umount the USB drive 0.441
Then I find very few patterns in the guest's memory after 3 seconds 6.841

Pattern coverage: 0.000% (0 MiB out of 880 MiB reference memory)

After features/support/hooks.rb:330 0.993
After features/support/hooks.rb:100 0.000
1:13.789
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 8.556
And I prepare Tails for memory erasure tests 0.514
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 34.452
Then I find very few patterns in the guest's memory 3.025

Pattern coverage: 0.000% (0 MiB out of 870 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.736
Then patterns cover at least 99% of the test FS size in the guest's memory 3.384

Pattern coverage: 106.113% (97 MiB out of 91 MiB reference memory)

When I umount the USB drive 0.999
Then I find very few patterns in the guest's memory after 3 seconds 6.055

Pattern coverage: 0.000% (0 MiB out of 870 MiB reference memory)

# read cache
When I mount the USB drive again 4.687
And I read the content of the test FS 0.471
Then patterns cover at least 99% of the test FS size in the guest's memory 3.344

Pattern coverage: 106.116% (97 MiB out of 91 MiB reference memory)

When I umount the USB drive 0.603
Then I find very few patterns in the guest's memory after 3 seconds 5.957

Pattern coverage: 0.000% (0 MiB out of 870 MiB reference memory)

After features/support/hooks.rb:330 1.030
After features/support/hooks.rb:100 0.000
49.608
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 8.631
And I prepare Tails for memory erasure tests 0.632
When I fill a 128 MiB file with a known pattern on the root filesystem 14.092
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.564
Then patterns cover at least 128 MiB in the guest's memory 2.802

Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)

When I trigger shutdown 0.015
Then I find very few patterns in the guest's memory after 20 seconds 20.870

Pattern coverage: 0.000% (0 MiB out of 887 MiB reference memory)

After features/support/hooks.rb:330 3.607
After features/support/hooks.rb:100 0.000
7:45.578
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:59.576
And I prepare Tails for memory erasure tests 0.424
When I fill a 128 MiB file with a known pattern on the persistent filesystem 24.159
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 21.405

Pattern coverage: 0.000% (0 MiB out of 909 MiB reference memory)

After features/support/hooks.rb:330 3.518
After features/support/hooks.rb:100 0.011