Project Number Date
test_Tails_ISO_devel 3652 16 Jan 2025, 23:10

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 11:51.680 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.
21.196
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.050
And I prepare Tails for memory erasure tests 0.518
When I start a process allocating 128 MiB of memory with a known pattern 2.334
Then patterns cover at least 128 MiB in the guest's memory 3.483

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

When I kill the allocating process 1.116
Then I find very few patterns in the guest's memory after 3 seconds 5.692

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

After features/support/hooks.rb:326 1.030
After features/support/hooks.rb:100 0.000
25.327
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.107
And I prepare Tails for memory erasure tests 0.572
And I find very few patterns in the guest's memory 3.047

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.705
Then patterns cover at least 99% of the test FS size in the guest's memory 3.210

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

When I umount "/mnt" 1.280
Then I find very few patterns in the guest's memory after 3 seconds 6.403

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

After features/support/hooks.rb:326 1.054
After features/support/hooks.rb:100 0.000
50.736
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.120
And I prepare Tails for memory erasure tests 0.530
When I plug and mount a 128 MiB USB drive with a vfat filesystem 9.237
Then I find very few patterns in the guest's memory 3.063

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

# write cache
When I fill the USB drive with a known pattern 6.937
Then patterns cover at least 75% of the test FS size in the guest's memory 3.041

Pattern coverage: 89.604% (114 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.636
Then I find very few patterns in the guest's memory after 3 seconds 6.032

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

# read cache
When I mount the USB drive again 0.416
And I read the content of the test FS 0.842
Then patterns cover at least 99% of the test FS size in the guest's memory 3.372

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

When I umount the USB drive 1.507
Then I find very few patterns in the guest's memory after 3 seconds 5.998

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

After features/support/hooks.rb:326 1.534
After features/support/hooks.rb:100 0.000
1:22.009
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.283
And I prepare Tails for memory erasure tests 0.547
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 41.157
Then I find very few patterns in the guest's memory 2.816

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

# write cache
When I fill the USB drive with a known pattern 2.178
Then patterns cover at least 99% of the test FS size in the guest's memory 2.851

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

When I umount the USB drive 1.061
Then I find very few patterns in the guest's memory after 3 seconds 6.262

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

# read cache
When I mount the USB drive again 6.533
And I read the content of the test FS 0.436
Then patterns cover at least 99% of the test FS size in the guest's memory 2.979

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

When I umount the USB drive 1.432
Then I find very few patterns in the guest's memory after 3 seconds 5.469

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

After features/support/hooks.rb:326 0.818
After features/support/hooks.rb:100 0.000
52.783
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.426
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 16.852
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 3.654
Then patterns cover at least 128 MiB in the guest's memory 2.635

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 20.753

Pattern coverage: 0.000% (0 MiB out of 900 MiB reference memory)

After features/support/hooks.rb:326 3.487
After features/support/hooks.rb:100 0.000
7:59.625
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 7:13.864
And I prepare Tails for memory erasure tests 0.476
When I fill a 128 MiB file with a known pattern on the persistent filesystem 24.079
When I trigger shutdown 0.013
Then I find very few patterns in the guest's memory after 20 seconds 21.191

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

After features/support/hooks.rb:326 3.497
After features/support/hooks.rb:100 0.012