Project Number Date
test_Tails_ISO_stable 5328 11 Dec 2024, 15:29

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 11:56.959 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.
21.373
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.351
And I prepare Tails for memory erasure tests 0.452
When I start a process allocating 128 MiB of memory with a known pattern 1.256
Then patterns cover at least 128 MiB in the guest's memory 3.816

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

When I kill the allocating process 0.966
Then I find very few patterns in the guest's memory after 3 seconds 6.529

Pattern coverage: 0.000% (0 MiB out of 880 MiB reference memory)

After features/support/hooks.rb:326 1.946
After features/support/hooks.rb:100 0.000
25.069
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.231
And I prepare Tails for memory erasure tests 0.467
And I find very few patterns in the guest's memory 2.946

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 2.404
Then patterns cover at least 99% of the test FS size in the guest's memory 3.593

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

When I umount "/mnt" 0.531
Then I find very few patterns in the guest's memory after 3 seconds 6.895

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

After features/support/hooks.rb:326 1.011
After features/support/hooks.rb:100 0.000
1:1.532
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.634
And I prepare Tails for memory erasure tests 0.488
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.404
Then I find very few patterns in the guest's memory 11.799

Pattern coverage: 0.000% (0 MiB out of 884 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 3.061
Then patterns cover at least 75% of the test FS size in the guest's memory 5.907

Pattern coverage: 90.666% (115 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.900
Then I find very few patterns in the guest's memory after 3 seconds 6.820

Pattern coverage: 0.000% (0 MiB out of 884 MiB reference memory)

# read cache
When I mount the USB drive again 0.966
And I read the content of the test FS 0.554
Then patterns cover at least 99% of the test FS size in the guest's memory 3.914

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

When I umount the USB drive 0.495
Then I find very few patterns in the guest's memory after 3 seconds 6.584

Pattern coverage: 0.000% (0 MiB out of 884 MiB reference memory)

After features/support/hooks.rb:326 0.821
After features/support/hooks.rb:100 0.000
1:21.642
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 9.586
And I prepare Tails for memory erasure tests 0.854
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 36.676
Then I find very few patterns in the guest's memory 3.238

Pattern coverage: 0.000% (0 MiB out of 881 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.136
Then patterns cover at least 99% of the test FS size in the guest's memory 3.406

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

When I umount the USB drive 1.006
Then I find very few patterns in the guest's memory after 3 seconds 6.178

Pattern coverage: 0.000% (0 MiB out of 881 MiB reference memory)

# read cache
When I mount the USB drive again 6.176
And I read the content of the test FS 0.488
Then patterns cover at least 99% of the test FS size in the guest's memory 3.312

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

When I umount the USB drive 2.065
Then I find very few patterns in the guest's memory after 3 seconds 6.517

Pattern coverage: 0.000% (0 MiB out of 881 MiB reference memory)

After features/support/hooks.rb:326 1.091
After features/support/hooks.rb:100 0.000
57.859
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 9.023
And I prepare Tails for memory erasure tests 0.449
When I fill a 128 MiB file with a known pattern on the root filesystem 19.479
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 4.740
Then patterns cover at least 128 MiB in the guest's memory 3.269

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

When I trigger shutdown 0.041
Then I find very few patterns in the guest's memory after 20 seconds 20.856

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

After features/support/hooks.rb:326 3.529
After features/support/hooks.rb:100 0.000
7:49.481
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 7:5.713
And I prepare Tails for memory erasure tests 0.461
When I fill a 128 MiB file with a known pattern on the persistent filesystem 21.994
When I trigger shutdown 0.013
Then I find very few patterns in the guest's memory after 20 seconds 21.299

Pattern coverage: 0.000% (0 MiB out of 899 MiB reference memory)

After features/support/hooks.rb:326 3.532
After features/support/hooks.rb:100 0.013