Project Number Date
test_Tails_ISO_devel 3665 28 Jan 2025, 05:26

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 11:32.732 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.
25.199
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 7.918
And I prepare Tails for memory erasure tests 0.463
When I start a process allocating 128 MiB of memory with a known pattern 2.377
Then patterns cover at least 128 MiB in the guest's memory 3.450

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

When I kill the allocating process 2.295
Then I find very few patterns in the guest's memory after 5 seconds 8.693

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

After features/support/hooks.rb:326 0.916
After features/support/hooks.rb:100 0.000
25.176
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.204
And I prepare Tails for memory erasure tests 0.605
And I find very few patterns in the guest's memory 3.202

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.561
Then patterns cover at least 99% of the test FS size in the guest's memory 3.617

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 6.045

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

After features/support/hooks.rb:326 0.938
After features/support/hooks.rb:100 0.000
46.966
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.529
And I prepare Tails for memory erasure tests 0.437
When I plug and mount a 128 MiB USB drive with a vfat filesystem 9.442
Then I find very few patterns in the guest's memory 2.867

Pattern coverage: 0.000% (0 MiB out of 860 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.782
Then patterns cover at least 75% of the test FS size in the guest's memory 3.496

Pattern coverage: 86.114% (109 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.448
Then I find very few patterns in the guest's memory after 3 seconds 6.167

Pattern coverage: 0.000% (0 MiB out of 860 MiB reference memory)

# read cache
When I mount the USB drive again 0.251
And I read the content of the test FS 0.617
Then patterns cover at least 99% of the test FS size in the guest's memory 4.110

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

When I umount the USB drive 0.527
Then I find very few patterns in the guest's memory after 3 seconds 6.287

Pattern coverage: 0.000% (0 MiB out of 860 MiB reference memory)

After features/support/hooks.rb:326 0.852
After features/support/hooks.rb:100 0.000
1:17.262
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 7.818
And I prepare Tails for memory erasure tests 0.514
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 36.410
Then I find very few patterns in the guest's memory 2.743

Pattern coverage: 0.000% (0 MiB out of 861 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.891
Then patterns cover at least 99% of the test FS size in the guest's memory 3.488

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

When I umount the USB drive 0.892
Then I find very few patterns in the guest's memory after 3 seconds 6.239

Pattern coverage: 0.000% (0 MiB out of 861 MiB reference memory)

# read cache
When I mount the USB drive again 6.992
And I read the content of the test FS 0.669
Then patterns cover at least 99% of the test FS size in the guest's memory 3.429

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

When I umount the USB drive 0.789
Then I find very few patterns in the guest's memory after 3 seconds 5.382

Pattern coverage: 0.000% (0 MiB out of 861 MiB reference memory)

After features/support/hooks.rb:326 0.909
After features/support/hooks.rb:100 0.000
52.121
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 7.789
And I prepare Tails for memory erasure tests 0.447
When I fill a 128 MiB file with a known pattern on the root filesystem 18.803
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.714
Then patterns cover at least 128 MiB in the guest's memory 2.489

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

When I trigger shutdown 0.016
Then I find very few patterns in the guest's memory after 20 seconds 20.860

Pattern coverage: 0.000% (0 MiB out of 862 MiB reference memory)

After features/support/hooks.rb:326 3.579
After features/support/hooks.rb:100 0.000
7:46.005
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 7:2.963
And I prepare Tails for memory erasure tests 0.784
When I fill a 128 MiB file with a known pattern on the persistent filesystem 20.920
When I trigger shutdown 0.016
Then I find very few patterns in the guest's memory after 20 seconds 21.319

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

After features/support/hooks.rb:326 3.542
After features/support/hooks.rb:100 0.013