Project Number Date
test_Tails_ISO_devel 3191 12 Dec 2023, 21:40

Feature Report

Steps Scenarios Features
Feature Passed Failed Skipped Pending Undefined Total Passed Failed Total Duration Status
System memory erasure on shutdown 53 0 0 0 0 53 6 0 6 13:50.899 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.
17.634
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.125
And I prepare Tails for memory erasure tests 0.617
When I start a process allocating 128 MiB of memory with a known pattern 1.301
Then patterns cover at least 128 MiB in the guest's memory 3.461

Pattern coverage: 100.100% (128 MiB out of 128 MiB reference memory)

When I kill the allocating process 0.229
Then I find very few patterns in the guest's memory 3.899

Pattern coverage: 0.000% (0 MiB out of 1218 MiB reference memory)

After features/support/hooks.rb:291 1.157
After features/support/hooks.rb:75 0.000
57.492
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.099
And I prepare Tails for memory erasure tests 0.580
And I find very few patterns in the guest's memory 4.422

Pattern coverage: 0.000% (0 MiB out of 1232 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 37.354
Then patterns cover at least 99% of the test FS size in the guest's memory 3.195

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

When I umount "/mnt" 0.229
Then I find very few patterns in the guest's memory 3.610

Pattern coverage: 0.000% (0 MiB out of 1232 MiB reference memory)

After features/support/hooks.rb:291 0.714
After features/support/hooks.rb:75 0.000
3:25.467
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.636
And I prepare Tails for memory erasure tests 0.470
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.871
Then I find very few patterns in the guest's memory 3.738

Pattern coverage: 0.000% (0 MiB out of 1213 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2:50.929
Then patterns cover at least 86% of the test FS size in the guest's memory 3.860

Pattern coverage: 99.761% (124 MiB out of 124 MiB reference memory)

When I umount the USB drive 0.583
Then I find very few patterns in the guest's memory 3.465

Pattern coverage: 0.000% (0 MiB out of 1213 MiB reference memory)

# read cache
When I mount the USB drive again 0.261
And I read the content of the test FS 0.616
Then patterns cover at least 99% of the test FS size in the guest's memory 3.239

Pattern coverage: 102.400% (127 MiB out of 124 MiB reference memory)

When I umount the USB drive 0.250
Then I find very few patterns in the guest's memory 3.543

Pattern coverage: 0.000% (0 MiB out of 1213 MiB reference memory)

After features/support/hooks.rb:291 0.792
After features/support/hooks.rb:75 0.000
2:39.398
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.673
And I prepare Tails for memory erasure tests 0.481
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 25.759
Then I find very few patterns in the guest's memory 3.357

Pattern coverage: 0.000% (0 MiB out of 1228 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1:43.927
Then patterns cover at least 99% of the test FS size in the guest's memory 2.660

Pattern coverage: 108.660% (97 MiB out of 89 MiB reference memory)

When I umount the USB drive 0.888
Then I find very few patterns in the guest's memory 3.324

Pattern coverage: 0.000% (0 MiB out of 1228 MiB reference memory)

# read cache
When I mount the USB drive again 4.255
And I read the content of the test FS 0.361
Then patterns cover at least 99% of the test FS size in the guest's memory 2.923

Pattern coverage: 108.663% (97 MiB out of 89 MiB reference memory)

When I umount the USB drive 0.512
Then I find very few patterns in the guest's memory 3.272

Pattern coverage: 0.000% (0 MiB out of 1228 MiB reference memory)

After features/support/hooks.rb:291 0.752
After features/support/hooks.rb:75 0.000
47.193
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 8.030
And I prepare Tails for memory erasure tests 0.600
When I fill a 128 MiB file with a known pattern on the root filesystem 12.425
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.416
Then patterns cover at least 128 MiB in the guest's memory 2.479

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

When I trigger shutdown 0.518
And I wait 20 seconds 20.014

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.709

Pattern coverage: 0.000% (0 MiB out of 1230 MiB reference memory)

After features/support/hooks.rb:291 3.479
After features/support/hooks.rb:75 0.000
5:43.713
Before features/support/hooks.rb:245 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 5:1.460
And I prepare Tails for memory erasure tests 0.438
When I fill a 128 MiB file with a known pattern on the persistent filesystem 19.506
When I trigger shutdown 0.235
And I wait 20 seconds 20.004

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.067

Pattern coverage: 0.000% (0 MiB out of 1183 MiB reference memory)

After features/support/hooks.rb:291 3.531
After features/support/hooks.rb:75 0.011