Project Number Date
test_Tails_ISO_19139-arti-1.4.2 10 26 Apr 2025, 03:33

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 10:36.581 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.
25.348
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 8.245
And I prepare Tails for memory erasure tests 0.535
When I start a process allocating 128 MiB of memory with a known pattern 2.339
Then patterns cover at least 128 MiB in the guest's memory 4.011

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

When I kill the allocating process 1.543
Then I find very few patterns in the guest's memory after 5 seconds 8.673

Pattern coverage: 0.000% (0 MiB out of 896 MiB reference memory)

After features/support/hooks.rb:330 0.840
After features/support/hooks.rb:100 0.000
25.835
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 8.004
And I prepare Tails for memory erasure tests 0.521
And I find very few patterns in the guest's memory 3.689

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.616
Then patterns cover at least 99% of the test FS size in the guest's memory 3.874

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

When I umount "/mnt" 0.618
Then I find very few patterns in the guest's memory after 3 seconds 6.510

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

After features/support/hooks.rb:330 0.761
After features/support/hooks.rb:100 0.000
47.808
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 7.880
And I prepare Tails for memory erasure tests 0.425
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.004
Then I find very few patterns in the guest's memory 3.162

Pattern coverage: 0.000% (0 MiB out of 883 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.675
Then patterns cover at least 75% of the test FS size in the guest's memory 3.912

Pattern coverage: 87.945% (112 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.405
Then I find very few patterns in the guest's memory after 3 seconds 6.483

Pattern coverage: 0.000% (0 MiB out of 883 MiB reference memory)

# read cache
When I mount the USB drive again 0.382
And I read the content of the test FS 0.566
Then patterns cover at least 99% of the test FS size in the guest's memory 3.966

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

When I umount the USB drive 0.498
Then I find very few patterns in the guest's memory after 3 seconds 6.444

Pattern coverage: 0.000% (0 MiB out of 883 MiB reference memory)

After features/support/hooks.rb:330 1.143
After features/support/hooks.rb:100 0.000
1:14.174
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 7.867
And I prepare Tails for memory erasure tests 0.508
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 36.243
Then I find very few patterns in the guest's memory 3.053

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

# write cache
When I fill the USB drive with a known pattern 1.729
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 0.817
Then I find very few patterns in the guest's memory after 3 seconds 6.239

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

# read cache
When I mount the USB drive again 4.215
And I read the content of the test FS 0.482
Then patterns cover at least 99% of the test FS size in the guest's memory 3.355

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

When I umount the USB drive 0.521
Then I find very few patterns in the guest's memory after 3 seconds 5.843

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

After features/support/hooks.rb:330 1.139
After features/support/hooks.rb:100 0.000
50.487
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 7.850
And I prepare Tails for memory erasure tests 0.446
When I fill a 128 MiB file with a known pattern on the root filesystem 17.187
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.828
Then patterns cover at least 128 MiB in the guest's memory 2.449

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 20.712

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

After features/support/hooks.rb:330 3.502
After features/support/hooks.rb:100 0.000
6:52.926
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:3.528
And I prepare Tails for memory erasure tests 0.457
When I fill a 128 MiB file with a known pattern on the persistent filesystem 27.692
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 21.235

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

After features/support/hooks.rb:330 3.534
After features/support/hooks.rb:100 0.012