Project Number Date
test_Tails_ISO_stable 4637 25 Jan 2024, 17:29

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 14:18.558 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.
16.590
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.516
And I prepare Tails for memory erasure tests 0.476
When I start a process allocating 128 MiB of memory with a known pattern 1.279
Then patterns cover at least 128 MiB in the guest's memory 3.463

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

When I kill the allocating process 0.244
Then I find very few patterns in the guest's memory 3.609

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

After features/support/hooks.rb:291 0.656
After features/support/hooks.rb:75 0.000
58.207
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 7.718
And I prepare Tails for memory erasure tests 0.466
And I find very few patterns in the guest's memory 3.853

Pattern coverage: 0.000% (0 MiB out of 1200 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 39.113
Then patterns cover at least 99% of the test FS size in the guest's memory 3.128

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

When I umount "/mnt" 0.254
Then I find very few patterns in the guest's memory 3.671

Pattern coverage: 0.000% (0 MiB out of 1200 MiB reference memory)

After features/support/hooks.rb:291 0.716
After features/support/hooks.rb:75 0.000
3:21.813
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.444
And I prepare Tails for memory erasure tests 0.508
When I plug and mount a 128 MiB USB drive with a vfat filesystem 7.998
Then I find very few patterns in the guest's memory 3.415

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

# write cache
When I fill the USB drive with a known pattern 2:42.543
Then patterns cover at least 86% of the test FS size in the guest's memory 3.846

Pattern coverage: 98.444% (122 MiB out of 124 MiB reference memory)

When I umount the USB drive 0.494
Then I find very few patterns in the guest's memory 4.370

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

# read cache
When I mount the USB drive again 0.359
And I read the content of the test FS 0.669
Then patterns cover at least 99% of the test FS size in the guest's memory 4.032

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

When I umount the USB drive 0.750
Then I find very few patterns in the guest's memory 4.378

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

After features/support/hooks.rb:291 0.731
After features/support/hooks.rb:75 0.000
2:51.530
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.614
And I prepare Tails for memory erasure tests 0.520
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 26.436
Then I find very few patterns in the guest's memory 3.762

Pattern coverage: 0.000% (0 MiB out of 1194 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1:53.721
Then patterns cover at least 99% of the test FS size in the guest's memory 3.127

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

When I umount the USB drive 0.620
Then I find very few patterns in the guest's memory 3.218

Pattern coverage: 0.000% (0 MiB out of 1194 MiB reference memory)

# read cache
When I mount the USB drive again 5.018
And I read the content of the test FS 0.385
Then patterns cover at least 99% of the test FS size in the guest's memory 2.730

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

When I umount the USB drive 0.462
Then I find very few patterns in the guest's memory 3.912

Pattern coverage: 0.000% (0 MiB out of 1194 MiB reference memory)

After features/support/hooks.rb:291 1.484
After features/support/hooks.rb:75 0.000
48.881
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.987
And I prepare Tails for memory erasure tests 0.534
When I fill a 128 MiB file with a known pattern on the root filesystem 13.992
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.408
Then patterns cover at least 128 MiB in the guest's memory 2.643

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

When I trigger shutdown 0.556
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.738

Pattern coverage: 0.000% (0 MiB out of 1208 MiB reference memory)

After features/support/hooks.rb:291 3.454
After features/support/hooks.rb:75 0.000
6:1.534
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 5:16.591
And I prepare Tails for memory erasure tests 0.489
When I fill a 128 MiB file with a known pattern on the persistent filesystem 21.923
When I trigger shutdown 0.407
And I wait 20 seconds 20.019

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.101

Pattern coverage: 0.000% (0 MiB out of 1172 MiB reference memory)

After features/support/hooks.rb:291 3.480
After features/support/hooks.rb:75 0.012