Project Number Date
test_Tails_ISO_stable 5300 28 Nov 2024, 08:35

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 10:15.170 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.
21.880
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 9.171
And I prepare Tails for memory erasure tests 0.502
When I start a process allocating 128 MiB of memory with a known pattern 2.507
Then patterns cover at least 128 MiB in the guest's memory 3.590

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

When I kill the allocating process 0.237
Then I find very few patterns in the guest's memory after 3 seconds 5.871

Pattern coverage: 0.000% (0 MiB out of 893 MiB reference memory)

After features/support/hooks.rb:326 0.829
After features/support/hooks.rb:100 0.000
21.811
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 7.798
And I prepare Tails for memory erasure tests 0.460
And I find very few patterns in the guest's memory 2.710

Pattern coverage: 0.000% (0 MiB out of 888 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.569
Then patterns cover at least 99% of the test FS size in the guest's memory 2.905

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

When I umount "/mnt" 0.716
Then I find very few patterns in the guest's memory after 3 seconds 5.651

Pattern coverage: 0.000% (0 MiB out of 888 MiB reference memory)

After features/support/hooks.rb:326 0.821
After features/support/hooks.rb:100 0.000
42.775
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 7.775
And I prepare Tails for memory erasure tests 0.450
When I plug and mount a 128 MiB USB drive with a vfat filesystem 9.178
Then I find very few patterns in the guest's memory 2.592

Pattern coverage: 0.000% (0 MiB out of 889 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.461
Then patterns cover at least 75% of the test FS size in the guest's memory 2.889

Pattern coverage: 88.159% (112 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.437
Then I find very few patterns in the guest's memory after 3 seconds 5.724

Pattern coverage: 0.000% (0 MiB out of 889 MiB reference memory)

# read cache
When I mount the USB drive again 0.223
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 3.079

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

When I umount the USB drive 0.743
Then I find very few patterns in the guest's memory after 3 seconds 5.641

Pattern coverage: 0.000% (0 MiB out of 889 MiB reference memory)

After features/support/hooks.rb:326 0.968
After features/support/hooks.rb:100 0.000
1:6.254
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 7.720
And I prepare Tails for memory erasure tests 0.483
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 31.946
Then I find very few patterns in the guest's memory 2.383

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

# write cache
When I fill the USB drive with a known pattern 1.767
Then patterns cover at least 99% of the test FS size in the guest's memory 2.550

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

When I umount the USB drive 0.935
Then I find very few patterns in the guest's memory after 3 seconds 5.362

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

# read cache
When I mount the USB drive again 4.236
And I read the content of the test FS 0.349
Then patterns cover at least 99% of the test FS size in the guest's memory 2.528

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

When I umount the USB drive 0.676
Then I find very few patterns in the guest's memory after 3 seconds 5.315

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

After features/support/hooks.rb:326 0.972
After features/support/hooks.rb:100 0.000
48.679
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 7.796
And I prepare Tails for memory erasure tests 0.513
When I fill a 128 MiB file with a known pattern on the root filesystem 15.199
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.082
Then patterns cover at least 128 MiB in the guest's memory 2.375

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 20.699

Pattern coverage: 0.000% (0 MiB out of 886 MiB reference memory)

After features/support/hooks.rb:326 3.474
After features/support/hooks.rb:100 0.000
6:53.768
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 6:7.465
And I prepare Tails for memory erasure tests 0.430
When I fill a 128 MiB file with a known pattern on the persistent filesystem 24.729
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 21.131

Pattern coverage: 0.000% (0 MiB out of 889 MiB reference memory)

After features/support/hooks.rb:326 3.479
After features/support/hooks.rb:100 0.011