Project Number Date
test_Tails_ISO_stable 4919 08 Jul 2024, 15:46

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 11:8.745 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.
26.222
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 9.544
And I prepare Tails for memory erasure tests 0.605
When I start a process allocating 128 MiB of memory with a known pattern 5.127
Then patterns cover at least 128 MiB in the guest's memory 5.262

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

When I kill the allocating process 1.431
Then I find very few patterns in the guest's memory 4.251

Pattern coverage: 0.000% (0 MiB out of 860 MiB reference memory)

After features/support/hooks.rb:326 0.701
After features/support/hooks.rb:100 0.000
23.858
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.127
And I prepare Tails for memory erasure tests 0.401
And I find very few patterns in the guest's memory 4.390

Pattern coverage: 0.000% (0 MiB out of 876 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.010
Then patterns cover at least 99% of the test FS size in the guest's memory 3.748

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

When I umount "/mnt" 0.817
Then I find very few patterns in the guest's memory 4.361

Pattern coverage: 0.000% (0 MiB out of 876 MiB reference memory)

After features/support/hooks.rb:326 0.727
After features/support/hooks.rb:100 0.000
48.158
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.349
And I prepare Tails for memory erasure tests 0.392
When I plug and mount a 128 MiB USB drive with a vfat filesystem 9.331
Then I find very few patterns in the guest's memory 5.519

Pattern coverage: 0.000% (0 MiB out of 873 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 3.364
Then patterns cover at least 86% of the test FS size in the guest's memory 3.990

Pattern coverage: 90.899% (115 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.857
Then I find very few patterns in the guest's memory 4.107

Pattern coverage: 0.000% (0 MiB out of 873 MiB reference memory)

# read cache
When I mount the USB drive again 0.237
And I read the content of the test FS 0.815
Then patterns cover at least 99% of the test FS size in the guest's memory 4.959

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

When I umount the USB drive 0.783
Then I find very few patterns in the guest's memory 4.451

Pattern coverage: 0.000% (0 MiB out of 873 MiB reference memory)

After features/support/hooks.rb:326 1.139
After features/support/hooks.rb:100 0.000
1:12.051
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.243
And I prepare Tails for memory erasure tests 0.368
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 34.279
Then I find very few patterns in the guest's memory 3.556

Pattern coverage: 0.000% (0 MiB out of 876 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.292
Then patterns cover at least 99% of the test FS size in the guest's memory 3.416

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

When I umount the USB drive 0.950
Then I find very few patterns in the guest's memory 3.842

Pattern coverage: 0.000% (0 MiB out of 876 MiB reference memory)

# read cache
When I mount the USB drive again 5.924
And I read the content of the test FS 0.495
Then patterns cover at least 99% of the test FS size in the guest's memory 3.076

Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)

When I umount the USB drive 0.647
Then I find very few patterns in the guest's memory 4.957

Pattern coverage: 0.000% (0 MiB out of 876 MiB reference memory)

After features/support/hooks.rb:326 0.823
After features/support/hooks.rb:100 0.000
55.090
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.069
And I prepare Tails for memory erasure tests 0.403
When I fill a 128 MiB file with a known pattern on the root filesystem 18.637
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.645
Then patterns cover at least 128 MiB in the guest's memory 3.478

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

When I trigger shutdown 0.014
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.821

Pattern coverage: 0.000% (0 MiB out of 873 MiB reference memory)

After features/support/hooks.rb:326 3.506
After features/support/hooks.rb:100 0.000
7:23.362
Before features/support/hooks.rb:269 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:39.623
And I prepare Tails for memory erasure tests 0.388
When I fill a 128 MiB file with a known pattern on the persistent filesystem 21.057
When I trigger shutdown 0.011
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.262

Pattern coverage: 0.000% (0 MiB out of 884 MiB reference memory)

After features/support/hooks.rb:326 3.529
After features/support/hooks.rb:100 0.009