Project Number Date
test_Tails_ISO_devel 3588 15 Nov 2024, 21:01

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 11:21.132 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.
20.643
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.417
And I prepare Tails for memory erasure tests 0.700
When I start a process allocating 128 MiB of memory with a known pattern 1.293
Then patterns cover at least 128 MiB in the guest's memory 4.182

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

When I kill the allocating process 0.314
Then I find very few patterns in the guest's memory after 3 seconds 5.735

Pattern coverage: 0.000% (0 MiB out of 882 MiB reference memory)

After features/support/hooks.rb:326 0.878
After features/support/hooks.rb:100 0.000
25.774
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.312
And I prepare Tails for memory erasure tests 0.749
And I find very few patterns in the guest's memory 3.332

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.244
Then patterns cover at least 99% of the test FS size in the guest's memory 3.856

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

When I umount "/mnt" 0.862
Then I find very few patterns in the guest's memory after 3 seconds 6.417

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

After features/support/hooks.rb:326 1.299
After features/support/hooks.rb:100 0.000
49.133
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.065
And I prepare Tails for memory erasure tests 0.655
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.136
Then I find very few patterns in the guest's memory 3.931

Pattern coverage: 0.000% (0 MiB out of 884 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 3.173
Then patterns cover at least 75% of the test FS size in the guest's memory 4.041

Pattern coverage: 89.435% (114 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.456
Then I find very few patterns in the guest's memory after 3 seconds 6.196

Pattern coverage: 0.000% (0 MiB out of 884 MiB reference memory)

# read cache
When I mount the USB drive again 0.494
And I read the content of the test FS 0.578
Then patterns cover at least 99% of the test FS size in the guest's memory 3.594

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

When I umount the USB drive 0.679
Then I find very few patterns in the guest's memory after 3 seconds 6.130

Pattern coverage: 0.000% (0 MiB out of 884 MiB reference memory)

After features/support/hooks.rb:326 1.686
After features/support/hooks.rb:100 0.000
1:17.721
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.067
And I prepare Tails for memory erasure tests 0.663
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 36.429
Then I find very few patterns in the guest's memory 2.995

Pattern coverage: 0.000% (0 MiB out of 868 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.118
Then patterns cover at least 99% of the test FS size in the guest's memory 3.533

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

When I umount the USB drive 0.903
Then I find very few patterns in the guest's memory after 3 seconds 6.388

Pattern coverage: 0.000% (0 MiB out of 868 MiB reference memory)

# read cache
When I mount the USB drive again 4.848
And I read the content of the test FS 0.433
Then patterns cover at least 99% of the test FS size in the guest's memory 3.334

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

When I umount the USB drive 0.860
Then I find very few patterns in the guest's memory after 3 seconds 7.142

Pattern coverage: 0.000% (0 MiB out of 868 MiB reference memory)

After features/support/hooks.rb:326 0.773
After features/support/hooks.rb:100 0.000
52.029
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.093
And I prepare Tails for memory erasure tests 0.798
When I fill a 128 MiB file with a known pattern on the root filesystem 16.739
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.969
Then patterns cover at least 128 MiB in the guest's memory 3.609

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

When I trigger shutdown 0.014
Then I find very few patterns in the guest's memory after 20 seconds 20.804

Pattern coverage: 0.000% (0 MiB out of 882 MiB reference memory)

After features/support/hooks.rb:326 3.488
After features/support/hooks.rb:100 0.000
7:35.830
Before features/support/hooks.rb:269 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:51.001
And I prepare Tails for memory erasure tests 1.036
When I fill a 128 MiB file with a known pattern on the persistent filesystem 22.540
When I trigger shutdown 0.011
Then I find very few patterns in the guest's memory after 20 seconds 21.239

Pattern coverage: 0.000% (0 MiB out of 902 MiB reference memory)

After features/support/hooks.rb:326 3.518
After features/support/hooks.rb:100 0.012