Project Number Date
test_Tails_ISO_stable 4573 18 Dec 2023, 14:21

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 13:58.003 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.
19.346
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.315
And I prepare Tails for memory erasure tests 0.507
When I start a process allocating 128 MiB of memory with a known pattern 2.372
Then patterns cover at least 128 MiB in the guest's memory 3.765

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

When I kill the allocating process 0.922
Then I find very few patterns in the guest's memory 3.463

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

After features/support/hooks.rb:291 1.591
After features/support/hooks.rb:75 0.000
59.576
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.209
And I prepare Tails for memory erasure tests 0.470
And I find very few patterns in the guest's memory 3.774

Pattern coverage: 0.000% (0 MiB out of 1224 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 39.147
Then patterns cover at least 99% of the test FS size in the guest's memory 3.142

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

When I umount "/mnt" 1.366
Then I find very few patterns in the guest's memory 3.464

Pattern coverage: 0.000% (0 MiB out of 1224 MiB reference memory)

After features/support/hooks.rb:291 0.825
After features/support/hooks.rb:75 0.000
3:18.923
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 8.246
And I prepare Tails for memory erasure tests 0.490
When I plug and mount a 128 MiB USB drive with a vfat filesystem 7.811
Then I find very few patterns in the guest's memory 4.093

Pattern coverage: 0.000% (0 MiB out of 1210 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2:39.555
Then patterns cover at least 86% of the test FS size in the guest's memory 3.438

Pattern coverage: 94.839% (118 MiB out of 124 MiB reference memory)

When I umount the USB drive 0.526
Then I find very few patterns in the guest's memory 4.523

Pattern coverage: 0.000% (0 MiB out of 1210 MiB reference memory)

# read cache
When I mount the USB drive again 0.256
And I read the content of the test FS 0.847
Then patterns cover at least 99% of the test FS size in the guest's memory 3.153

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

When I umount the USB drive 2.182
Then I find very few patterns in the guest's memory 3.797

Pattern coverage: 0.000% (0 MiB out of 1210 MiB reference memory)

After features/support/hooks.rb:291 0.793
After features/support/hooks.rb:75 0.000
2:19.893
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 9.602
And I prepare Tails for memory erasure tests 0.476
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 25.112
Then I find very few patterns in the guest's memory 4.296

Pattern coverage: 0.000% (0 MiB out of 1223 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1:19.543
Then patterns cover at least 99% of the test FS size in the guest's memory 2.701

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

When I umount the USB drive 0.869
Then I find very few patterns in the guest's memory 3.372

Pattern coverage: 0.000% (0 MiB out of 1223 MiB reference memory)

# read cache
When I mount the USB drive again 5.577
And I read the content of the test FS 0.654
Then patterns cover at least 99% of the test FS size in the guest's memory 2.689

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

When I umount the USB drive 1.956
Then I find very few patterns in the guest's memory 3.040

Pattern coverage: 0.000% (0 MiB out of 1223 MiB reference memory)

After features/support/hooks.rb:291 0.898
After features/support/hooks.rb:75 0.000
51.140
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.335
And I prepare Tails for memory erasure tests 0.539
When I fill a 128 MiB file with a known pattern on the root filesystem 14.897
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.777
Then patterns cover at least 128 MiB in the guest's memory 3.131

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

When I trigger shutdown 0.669
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.770

Pattern coverage: 0.000% (0 MiB out of 1219 MiB reference memory)

After features/support/hooks.rb:291 3.471
After features/support/hooks.rb:75 0.000
6:9.121
Before features/support/hooks.rb:245 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 5:26.410
And I prepare Tails for memory erasure tests 0.605
When I fill a 128 MiB file with a known pattern on the persistent filesystem 19.491
When I trigger shutdown 0.435
And I wait 20 seconds 20.008

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.171

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

After features/support/hooks.rb:291 3.473
After features/support/hooks.rb:75 0.014