Project Number Date
test_Tails_ISO_20898-tinyrpc-drop 1 15 Apr 2025, 21:35

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 11:27.600 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.
28.662
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 9.037
And I prepare Tails for memory erasure tests 0.612
When I start a process allocating 128 MiB of memory with a known pattern 3.727
Then patterns cover at least 128 MiB in the guest's memory 5.494

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

When I kill the allocating process 1.022
Then I find very few patterns in the guest's memory after 5 seconds 8.768

Pattern coverage: 0.000% (0 MiB out of 892 MiB reference memory)

After features/support/hooks.rb:330 0.834
After features/support/hooks.rb:100 0.000
27.069
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 9.051
And I prepare Tails for memory erasure tests 0.620
And I find very few patterns in the guest's memory 3.852

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.178
Then patterns cover at least 99% of the test FS size in the guest's memory 4.046

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

When I umount "/mnt" 0.731
Then I find very few patterns in the guest's memory after 3 seconds 6.588

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

After features/support/hooks.rb:330 0.755
After features/support/hooks.rb:100 0.000
50.699
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 8.224
And I prepare Tails for memory erasure tests 0.482
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.188
Then I find very few patterns in the guest's memory 3.775

Pattern coverage: 0.000% (0 MiB out of 905 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 3.195
Then patterns cover at least 75% of the test FS size in the guest's memory 4.610

Pattern coverage: 91.624% (116 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.362
Then I find very few patterns in the guest's memory after 3 seconds 6.697

Pattern coverage: 0.000% (0 MiB out of 905 MiB reference memory)

# read cache
When I mount the USB drive again 0.194
And I read the content of the test FS 0.655
Then patterns cover at least 99% of the test FS size in the guest's memory 4.056

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

When I umount the USB drive 0.676
Then I find very few patterns in the guest's memory after 3 seconds 6.578

Pattern coverage: 0.000% (0 MiB out of 905 MiB reference memory)

After features/support/hooks.rb:330 0.972
After features/support/hooks.rb:100 0.000
1:18.468
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 8.720
And I prepare Tails for memory erasure tests 0.511
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 40.092
Then I find very few patterns in the guest's memory 3.306

Pattern coverage: 0.000% (0 MiB out of 906 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.692
Then patterns cover at least 99% of the test FS size in the guest's memory 3.519

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

When I umount the USB drive 0.715
Then I find very few patterns in the guest's memory after 3 seconds 5.986

Pattern coverage: 0.000% (0 MiB out of 906 MiB reference memory)

# read cache
When I mount the USB drive again 4.812
And I read the content of the test FS 0.454
Then patterns cover at least 99% of the test FS size in the guest's memory 2.879

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

When I umount the USB drive 0.451
Then I find very few patterns in the guest's memory after 3 seconds 5.324

Pattern coverage: 0.000% (0 MiB out of 906 MiB reference memory)

After features/support/hooks.rb:330 1.378
After features/support/hooks.rb:100 0.000
49.336
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 8.634
And I prepare Tails for memory erasure tests 0.559
When I fill a 128 MiB file with a known pattern on the root filesystem 13.922
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.105
Then patterns cover at least 128 MiB in the guest's memory 3.241

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 20.860

Pattern coverage: 0.000% (0 MiB out of 905 MiB reference memory)

After features/support/hooks.rb:330 3.513
After features/support/hooks.rb:100 0.000
7:33.363
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 6:48.950
And I prepare Tails for memory erasure tests 0.654
When I fill a 128 MiB file with a known pattern on the persistent filesystem 22.444
When I trigger shutdown 0.015
Then I find very few patterns in the guest's memory after 20 seconds 21.299

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

After features/support/hooks.rb:330 3.514
After features/support/hooks.rb:100 0.010