Project Number Date
test_Tails_ISO_stable 5030 14 Aug 2024, 15:23

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 11:38.259 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.
21.289
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.429
And I prepare Tails for memory erasure tests 0.410
When I start a process allocating 128 MiB of memory with a known pattern 1.388
Then patterns cover at least 128 MiB in the guest's memory 4.754

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

When I kill the allocating process 0.435
Then I find very few patterns in the guest's memory after 3 seconds 5.869

Pattern coverage: 0.000% (0 MiB out of 903 MiB reference memory)

After features/support/hooks.rb:326 1.207
After features/support/hooks.rb:100 0.000
29.521
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.183
And I prepare Tails for memory erasure tests 0.464
And I find very few patterns in the guest's memory 5.304

Pattern coverage: 0.000% (0 MiB out of 893 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 4.443
Then patterns cover at least 99% of the test FS size in the guest's memory 3.596

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

When I umount "/mnt" 0.650
Then I find very few patterns in the guest's memory after 3 seconds 6.878

Pattern coverage: 0.000% (0 MiB out of 893 MiB reference memory)

After features/support/hooks.rb:326 1.993
After features/support/hooks.rb:100 0.000
48.060
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.228
And I prepare Tails for memory erasure tests 0.460
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.032
Then I find very few patterns in the guest's memory 3.448

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

# write cache
When I fill the USB drive with a known pattern 2.907
Then patterns cover at least 75% of the test FS size in the guest's memory 3.784

Pattern coverage: 87.250% (111 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.474
Then I find very few patterns in the guest's memory after 3 seconds 6.341

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

# read cache
When I mount the USB drive again 0.306
And I read the content of the test FS 0.577
Then patterns cover at least 99% of the test FS size in the guest's memory 3.533

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

When I umount the USB drive 0.568
Then I find very few patterns in the guest's memory after 3 seconds 6.397

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

After features/support/hooks.rb:326 3.449
After features/support/hooks.rb:100 0.000
1:20.432
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.271
And I prepare Tails for memory erasure tests 0.474
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 34.396
Then I find very few patterns in the guest's memory 2.768

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

# write cache
When I fill the USB drive with a known pattern 2.972
Then patterns cover at least 99% of the test FS size in the guest's memory 3.275

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

When I umount the USB drive 6.047
Then I find very few patterns in the guest's memory after 3 seconds 5.709

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

# read cache
When I mount the USB drive again 6.357
And I read the content of the test FS 0.643
Then patterns cover at least 99% of the test FS size in the guest's memory 3.146

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

When I umount the USB drive 0.744
Then I find very few patterns in the guest's memory after 3 seconds 5.621

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

After features/support/hooks.rb:326 1.068
After features/support/hooks.rb:100 0.000
55.640
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.984
And I prepare Tails for memory erasure tests 0.500
When I fill a 128 MiB file with a known pattern on the root filesystem 20.367
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.096
Then patterns cover at least 128 MiB in the guest's memory 2.877

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 20.798

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

After features/support/hooks.rb:326 3.488
After features/support/hooks.rb:100 0.000
7:43.314
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 6:59.749
And I prepare Tails for memory erasure tests 0.450
When I fill a 128 MiB file with a known pattern on the persistent filesystem 21.821
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 21.280

Pattern coverage: 0.000% (0 MiB out of 902 MiB reference memory)

After features/support/hooks.rb:326 3.553
After features/support/hooks.rb:100 0.013