Project Number Date
test_Tails_ISO_devel 3707 23 Feb 2025, 12:37

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 11:54.150 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.
24.454
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 8.091
And I prepare Tails for memory erasure tests 0.413
When I start a process allocating 128 MiB of memory with a known pattern 2.832
Then patterns cover at least 128 MiB in the guest's memory 3.565

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

When I kill the allocating process 1.590
Then I find very few patterns in the guest's memory after 5 seconds 7.961

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

After features/support/hooks.rb:330 0.849
After features/support/hooks.rb:100 0.000
25.467
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 8.104
And I prepare Tails for memory erasure tests 0.435
And I find very few patterns in the guest's memory 2.971

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 3.492
Then patterns cover at least 99% of the test FS size in the guest's memory 4.124

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

When I umount "/mnt" 0.765
Then I find very few patterns in the guest's memory after 3 seconds 5.573

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

After features/support/hooks.rb:330 0.775
After features/support/hooks.rb:100 0.000
1:6.751
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 8.041
And I prepare Tails for memory erasure tests 0.492
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.309
Then I find very few patterns in the guest's memory 4.704

Pattern coverage: 0.000% (0 MiB out of 912 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.852
Then patterns cover at least 75% of the test FS size in the guest's memory 5.271

Pattern coverage: 88.737% (113 MiB out of 127 MiB reference memory)

When I umount the USB drive 7.342
Then I find very few patterns in the guest's memory after 3 seconds 6.971

Pattern coverage: 0.000% (0 MiB out of 912 MiB reference memory)

# read cache
When I mount the USB drive again 0.512
And I read the content of the test FS 0.898
Then patterns cover at least 99% of the test FS size in the guest's memory 7.841

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

When I umount the USB drive 0.587
Then I find very few patterns in the guest's memory after 3 seconds 10.923

Pattern coverage: 0.000% (0 MiB out of 912 MiB reference memory)

After features/support/hooks.rb:330 2.680
After features/support/hooks.rb:100 0.000
1:17.835
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.004
Given I have started Tails from DVD without network and logged in 10.243
And I prepare Tails for memory erasure tests 0.376
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 35.039
Then I find very few patterns in the guest's memory 3.126

Pattern coverage: 0.000% (0 MiB out of 891 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.099
Then patterns cover at least 99% of the test FS size in the guest's memory 3.506

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

When I umount the USB drive 1.441
Then I find very few patterns in the guest's memory after 3 seconds 6.619

Pattern coverage: 0.000% (0 MiB out of 891 MiB reference memory)

# read cache
When I mount the USB drive again 5.625
And I read the content of the test FS 0.509
Then patterns cover at least 99% of the test FS size in the guest's memory 3.020

Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)

When I umount the USB drive 1.040
Then I find very few patterns in the guest's memory after 3 seconds 5.187

Pattern coverage: 0.000% (0 MiB out of 891 MiB reference memory)

After features/support/hooks.rb:330 1.529
After features/support/hooks.rb:100 0.000
51.210
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 7.948
And I prepare Tails for memory erasure tests 0.420
When I fill a 128 MiB file with a known pattern on the root filesystem 17.823
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.917
Then patterns cover at least 128 MiB in the guest's memory 2.390

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

When I trigger shutdown 0.015
Then I find very few patterns in the guest's memory after 20 seconds 20.695

Pattern coverage: 0.000% (0 MiB out of 914 MiB reference memory)

After features/support/hooks.rb:330 3.491
After features/support/hooks.rb:100 0.000
7:48.430
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 7:4.395
And I prepare Tails for memory erasure tests 0.448
When I fill a 128 MiB file with a known pattern on the persistent filesystem 22.422
When I trigger shutdown 0.011
Then I find very few patterns in the guest's memory after 20 seconds 21.152

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

After features/support/hooks.rb:330 3.481
After features/support/hooks.rb:100 0.011