Project Number Date
test_Tails_ISO_devel 3597 23 Nov 2024, 12:22

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 11:3.128 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.
23.316
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.645
And I prepare Tails for memory erasure tests 0.518
When I start a process allocating 128 MiB of memory with a known pattern 1.198
Then patterns cover at least 128 MiB in the guest's memory 5.800

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

When I kill the allocating process 0.488
Then I find very few patterns in the guest's memory after 3 seconds 6.666

Pattern coverage: 0.000% (0 MiB out of 908 MiB reference memory)

After features/support/hooks.rb:326 1.288
After features/support/hooks.rb:100 0.000
24.641
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.998
And I prepare Tails for memory erasure tests 0.378
And I find very few patterns in the guest's memory 3.150

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 1.985
Then patterns cover at least 99% of the test FS size in the guest's memory 3.496

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

When I umount "/mnt" 0.515
Then I find very few patterns in the guest's memory after 3 seconds 6.116

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

After features/support/hooks.rb:326 0.826
After features/support/hooks.rb:100 0.000
48.419
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.070
And I prepare Tails for memory erasure tests 0.400
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.145
Then I find very few patterns in the guest's memory 3.693

Pattern coverage: 0.000% (0 MiB out of 903 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 3.684
Then patterns cover at least 75% of the test FS size in the guest's memory 3.687

Pattern coverage: 88.453% (112 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.353
Then I find very few patterns in the guest's memory after 3 seconds 6.126

Pattern coverage: 0.000% (0 MiB out of 903 MiB reference memory)

# read cache
When I mount the USB drive again 0.257
And I read the content of the test FS 0.440
Then patterns cover at least 99% of the test FS size in the guest's memory 3.540

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

When I umount the USB drive 0.586
Then I find very few patterns in the guest's memory after 3 seconds 6.434

Pattern coverage: 0.000% (0 MiB out of 903 MiB reference memory)

After features/support/hooks.rb:326 0.781
After features/support/hooks.rb:100 0.000
1:22.697
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.087
And I prepare Tails for memory erasure tests 0.426
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 36.119
Then I find very few patterns in the guest's memory 3.221

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

# write cache
When I fill the USB drive with a known pattern 2.008
Then patterns cover at least 99% of the test FS size in the guest's memory 3.296

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

When I umount the USB drive 1.026
Then I find very few patterns in the guest's memory after 3 seconds 7.204

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

# read cache
When I mount the USB drive again 5.869
And I read the content of the test FS 2.430
Then patterns cover at least 99% of the test FS size in the guest's memory 4.588

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

When I umount the USB drive 1.206
Then I find very few patterns in the guest's memory after 3 seconds 7.212

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

After features/support/hooks.rb:326 0.881
After features/support/hooks.rb:100 0.000
51.414
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 7.984
And I prepare Tails for memory erasure tests 0.425
When I fill a 128 MiB file with a known pattern on the root filesystem 17.349
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.810
Then patterns cover at least 128 MiB in the guest's memory 2.973

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 20.857

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

After features/support/hooks.rb:326 3.502
After features/support/hooks.rb:100 0.000
7:12.638
Before features/support/hooks.rb:269 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:29.735
And I prepare Tails for memory erasure tests 0.406
When I fill a 128 MiB file with a known pattern on the persistent filesystem 21.317
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 21.165

Pattern coverage: 0.000% (0 MiB out of 885 MiB reference memory)

After features/support/hooks.rb:326 3.483
After features/support/hooks.rb:100 0.012