Project Number Date
test_Tails_ISO_stable 5185 16 Oct 2024, 08:53

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 11:36.840 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.
36.178
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 20.677
And I prepare Tails for memory erasure tests 0.423
When I start a process allocating 128 MiB of memory with a known pattern 2.397
Then patterns cover at least 128 MiB in the guest's memory 3.937

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

When I kill the allocating process 2.029
Then I find very few patterns in the guest's memory after 3 seconds 6.712

Pattern coverage: 0.000% (0 MiB out of 894 MiB reference memory)

After features/support/hooks.rb:326 1.000
After features/support/hooks.rb:100 0.000
26.288
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 7.987
And I prepare Tails for memory erasure tests 0.423
And I find very few patterns in the guest's memory 3.691

Pattern coverage: 0.000% (0 MiB out of 901 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.339
Then patterns cover at least 99% of the test FS size in the guest's memory 4.120

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

When I umount "/mnt" 1.304
Then I find very few patterns in the guest's memory after 3 seconds 6.420

Pattern coverage: 0.000% (0 MiB out of 901 MiB reference memory)

After features/support/hooks.rb:326 1.234
After features/support/hooks.rb:100 0.000
53.228
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 9.270
And I prepare Tails for memory erasure tests 0.422
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.138
Then I find very few patterns in the guest's memory 3.557

Pattern coverage: 0.000% (0 MiB out of 897 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 3.414
Then patterns cover at least 75% of the test FS size in the guest's memory 4.138

Pattern coverage: 89.022% (113 MiB out of 127 MiB reference memory)

When I umount the USB drive 3.234
Then I find very few patterns in the guest's memory after 3 seconds 6.362

Pattern coverage: 0.000% (0 MiB out of 897 MiB reference memory)

# read cache
When I mount the USB drive again 0.371
And I read the content of the test FS 0.803
Then patterns cover at least 99% of the test FS size in the guest's memory 4.172

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

When I umount the USB drive 0.710
Then I find very few patterns in the guest's memory after 3 seconds 6.631

Pattern coverage: 0.000% (0 MiB out of 897 MiB reference memory)

After features/support/hooks.rb:326 1.737
After features/support/hooks.rb:100 0.000
1:18.678
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.049
And I prepare Tails for memory erasure tests 0.392
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 40.469
Then I find very few patterns in the guest's memory 2.627

Pattern coverage: 0.000% (0 MiB out of 901 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.956
Then patterns cover at least 99% of the test FS size in the guest's memory 2.758

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

When I umount the USB drive 1.092
Then I find very few patterns in the guest's memory after 3 seconds 5.332

Pattern coverage: 0.000% (0 MiB out of 901 MiB reference memory)

# read cache
When I mount the USB drive again 5.472
And I read the content of the test FS 0.481
Then patterns cover at least 99% of the test FS size in the guest's memory 2.812

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

When I umount the USB drive 1.360
Then I find very few patterns in the guest's memory after 3 seconds 5.870

Pattern coverage: 0.000% (0 MiB out of 901 MiB reference memory)

After features/support/hooks.rb:326 3.734
After features/support/hooks.rb:100 0.000
50.201
Before features/support/hooks.rb:269 0.004
Given I have started Tails from DVD without network and logged in 8.191
And I prepare Tails for memory erasure tests 0.414
When I fill a 128 MiB file with a known pattern on the root filesystem 15.218
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.065
Then patterns cover at least 128 MiB in the guest's memory 3.419

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

When I trigger shutdown 0.018
Then I find very few patterns in the guest's memory after 20 seconds 20.872

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

After features/support/hooks.rb:326 3.529
After features/support/hooks.rb:100 0.000
7:32.264
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 6:48.582
And I prepare Tails for memory erasure tests 0.795
When I fill a 128 MiB file with a known pattern on the persistent filesystem 21.716
When I trigger shutdown 0.011
Then I find very few patterns in the guest's memory after 20 seconds 21.158

Pattern coverage: 0.000% (0 MiB out of 899 MiB reference memory)

After features/support/hooks.rb:326 3.521
After features/support/hooks.rb:100 0.010