Project Number Date
test_Tails_ISO_devel 3485 19 Aug 2024, 12:26

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 11:34.195 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.
23.662
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 9.858
And I prepare Tails for memory erasure tests 0.666
When I start a process allocating 128 MiB of memory with a known pattern 2.523
Then patterns cover at least 128 MiB in the guest's memory 3.825

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

When I kill the allocating process 0.724
Then I find very few patterns in the guest's memory after 3 seconds 6.063

Pattern coverage: 0.000% (0 MiB out of 885 MiB reference memory)

After features/support/hooks.rb:326 0.851
After features/support/hooks.rb:100 0.000
27.194
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.460
And I prepare Tails for memory erasure tests 0.476
And I find very few patterns in the guest's memory 3.130

Pattern coverage: 0.000% (0 MiB out of 885 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.241
Then patterns cover at least 99% of the test FS size in the guest's memory 3.378

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

When I umount "/mnt" 3.410
Then I find very few patterns in the guest's memory after 3 seconds 6.095

Pattern coverage: 0.000% (0 MiB out of 885 MiB reference memory)

After features/support/hooks.rb:326 0.996
After features/support/hooks.rb:100 0.000
47.205
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.400
And I prepare Tails for memory erasure tests 0.453
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.210
Then I find very few patterns in the guest's memory 3.007

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

# write cache
When I fill the USB drive with a known pattern 2.506
Then patterns cover at least 75% of the test FS size in the guest's memory 3.351

Pattern coverage: 90.234% (115 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.572
Then I find very few patterns in the guest's memory after 3 seconds 5.835

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

# read cache
When I mount the USB drive again 0.629
And I read the content of the test FS 0.902
Then patterns cover at least 99% of the test FS size in the guest's memory 3.301

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

When I umount the USB drive 1.094
Then I find very few patterns in the guest's memory after 3 seconds 5.938

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

After features/support/hooks.rb:326 0.846
After features/support/hooks.rb:100 0.000
1:21.522
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 10.451
And I prepare Tails for memory erasure tests 2.308
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 36.578
Then I find very few patterns in the guest's memory 2.412

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

# write cache
When I fill the USB drive with a known pattern 2.137
Then patterns cover at least 99% of the test FS size in the guest's memory 3.198

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

When I umount the USB drive 3.659
Then I find very few patterns in the guest's memory after 3 seconds 5.340

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

# read cache
When I mount the USB drive again 5.950
And I read the content of the test FS 0.548
Then patterns cover at least 99% of the test FS size in the guest's memory 2.825

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

When I umount the USB drive 0.655
Then I find very few patterns in the guest's memory after 3 seconds 5.456

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

After features/support/hooks.rb:326 0.934
After features/support/hooks.rb:100 0.000
49.371
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.412
And I prepare Tails for memory erasure tests 0.460
When I fill a 128 MiB file with a known pattern on the root filesystem 14.847
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.234
Then patterns cover at least 128 MiB in the guest's memory 2.621

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

When I trigger shutdown 0.020
Then I find very few patterns in the guest's memory after 20 seconds 20.773

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

After features/support/hooks.rb:326 3.555
After features/support/hooks.rb:100 0.000
7:45.238
Before features/support/hooks.rb:269 0.004
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 7:1.280
And I prepare Tails for memory erasure tests 0.451
When I fill a 128 MiB file with a known pattern on the persistent filesystem 22.300
When I trigger shutdown 0.011
Then I find very few patterns in the guest's memory after 20 seconds 21.195

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

After features/support/hooks.rb:326 3.535
After features/support/hooks.rb:100 0.012