Project Number Date
test_Tails_ISO_devel 3632 04 Jan 2025, 12:29

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 12:16.948 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.
24.635
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 9.425
And I prepare Tails for memory erasure tests 0.472
When I start a process allocating 128 MiB of memory with a known pattern 4.278
Then patterns cover at least 128 MiB in the guest's memory 3.990

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

When I kill the allocating process 0.951
Then I find very few patterns in the guest's memory after 3 seconds 5.516

Pattern coverage: 0.000% (0 MiB out of 911 MiB reference memory)

After features/support/hooks.rb:326 4.176
After features/support/hooks.rb:100 0.000
27.869
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.209
And I prepare Tails for memory erasure tests 0.455
And I find very few patterns in the guest's memory 3.724

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 5.301
Then patterns cover at least 99% of the test FS size in the guest's memory 3.489

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

When I umount "/mnt" 0.939
Then I find very few patterns in the guest's memory after 3 seconds 5.749

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

After features/support/hooks.rb:326 1.055
After features/support/hooks.rb:100 0.000
47.964
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.604
And I prepare Tails for memory erasure tests 0.498
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.149
Then I find very few patterns in the guest's memory 2.902

Pattern coverage: 0.000% (0 MiB out of 910 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.623
Then patterns cover at least 75% of the test FS size in the guest's memory 3.298

Pattern coverage: 90.816% (115 MiB out of 127 MiB reference memory)

When I umount the USB drive 2.312
Then I find very few patterns in the guest's memory after 3 seconds 5.894

Pattern coverage: 0.000% (0 MiB out of 910 MiB reference memory)

# read cache
When I mount the USB drive again 0.255
And I read the content of the test FS 0.576
Then patterns cover at least 99% of the test FS size in the guest's memory 3.817

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

When I umount the USB drive 0.842
Then I find very few patterns in the guest's memory after 3 seconds 6.187

Pattern coverage: 0.000% (0 MiB out of 910 MiB reference memory)

After features/support/hooks.rb:326 2.011
After features/support/hooks.rb:100 0.000
1:31.575
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.014
And I prepare Tails for memory erasure tests 0.378
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 51.479
Then I find very few patterns in the guest's memory 3.590

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

# write cache
When I fill the USB drive with a known pattern 2.531
Then patterns cover at least 99% of the test FS size in the guest's memory 3.168

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

When I umount the USB drive 1.535
Then I find very few patterns in the guest's memory after 3 seconds 5.507

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

# read cache
When I mount the USB drive again 5.632
And I read the content of the test FS 0.436
Then patterns cover at least 99% of the test FS size in the guest's memory 2.782

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

When I umount the USB drive 1.131
Then I find very few patterns in the guest's memory after 3 seconds 5.385

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

After features/support/hooks.rb:326 0.860
After features/support/hooks.rb:100 0.000
51.742
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.459
And I prepare Tails for memory erasure tests 0.411
When I fill a 128 MiB file with a known pattern on the root filesystem 17.469
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.039
Then patterns cover at least 128 MiB in the guest's memory 2.616

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

When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 20.732

Pattern coverage: 0.000% (0 MiB out of 907 MiB reference memory)

After features/support/hooks.rb:326 3.521
After features/support/hooks.rb:100 0.000
8:13.162
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 7:27.202
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 24.325
When I trigger shutdown 0.018
Then I find very few patterns in the guest's memory after 20 seconds 21.191

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

After features/support/hooks.rb:326 3.492
After features/support/hooks.rb:100 0.013