Project Number Date
test_Tails_ISO_stable 4754 28 Mar 2024, 11:54

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 9:26.230 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.
20.368
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.928
And I prepare Tails for memory erasure tests 0.414
When I start a process allocating 128 MiB of memory with a known pattern 1.252
Then patterns cover at least 128 MiB in the guest's memory 4.274

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

When I kill the allocating process 2.069
Then I find very few patterns in the guest's memory 4.428

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

After features/support/hooks.rb:291 0.895
After features/support/hooks.rb:75 0.000
23.175
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.155
And I prepare Tails for memory erasure tests 0.451
And I find very few patterns in the guest's memory 4.465

Pattern coverage: 0.000% (0 MiB out of 916 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.008
Then patterns cover at least 99% of the test FS size in the guest's memory 3.282

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

When I umount "/mnt" 0.994
Then I find very few patterns in the guest's memory 3.818

Pattern coverage: 0.000% (0 MiB out of 916 MiB reference memory)

After features/support/hooks.rb:291 1.070
After features/support/hooks.rb:75 0.000
39.955
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.269
And I prepare Tails for memory erasure tests 0.498
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.861
Then I find very few patterns in the guest's memory 3.820

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

# write cache
When I fill the USB drive with a known pattern 3.257
Then patterns cover at least 86% of the test FS size in the guest's memory 3.609

Pattern coverage: 88.707% (113 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.473
Then I find very few patterns in the guest's memory 3.887

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

# read cache
When I mount the USB drive again 0.205
And I read the content of the test FS 0.509
Then patterns cover at least 99% of the test FS size in the guest's memory 2.987

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

When I umount the USB drive 0.583
Then I find very few patterns in the guest's memory 3.990

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

After features/support/hooks.rb:291 2.040
After features/support/hooks.rb:75 0.000
1:0.791
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 8.592
And I prepare Tails for memory erasure tests 0.491
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 27.703
Then I find very few patterns in the guest's memory 3.548

Pattern coverage: 0.000% (0 MiB out of 907 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.640
Then patterns cover at least 99% of the test FS size in the guest's memory 2.815

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

When I umount the USB drive 0.663
Then I find very few patterns in the guest's memory 3.530

Pattern coverage: 0.000% (0 MiB out of 907 MiB reference memory)

# read cache
When I mount the USB drive again 4.021
And I read the content of the test FS 0.508
Then patterns cover at least 99% of the test FS size in the guest's memory 3.038

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

When I umount the USB drive 0.616
Then I find very few patterns in the guest's memory 3.620

Pattern coverage: 0.000% (0 MiB out of 907 MiB reference memory)

After features/support/hooks.rb:291 0.829
After features/support/hooks.rb:75 0.000
47.641
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.038
And I prepare Tails for memory erasure tests 0.397
When I fill a 128 MiB file with a known pattern on the root filesystem 13.364
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.341
Then patterns cover at least 128 MiB in the guest's memory 2.683

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

When I trigger shutdown 0.013
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.781

Pattern coverage: 0.000% (0 MiB out of 918 MiB reference memory)

After features/support/hooks.rb:291 3.479
After features/support/hooks.rb:75 0.000
6:14.299
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 5:29.301
And I prepare Tails for memory erasure tests 0.427
When I fill a 128 MiB file with a known pattern on the persistent filesystem 22.343
When I trigger shutdown 0.011
And I wait 20 seconds 20.004

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.210

Pattern coverage: 0.000% (0 MiB out of 930 MiB reference memory)

After features/support/hooks.rb:291 3.506
After features/support/hooks.rb:75 0.012