Project Number Date
test_Tails_ISO_stable 4718 14 Mar 2024, 12:19

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 10:19.756 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.
18.062
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.517
And I prepare Tails for memory erasure tests 0.531
When I start a process allocating 128 MiB of memory with a known pattern 1.198
Then patterns cover at least 128 MiB in the guest's memory 3.407

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

When I kill the allocating process 0.209
Then I find very few patterns in the guest's memory 4.198

Pattern coverage: 0.000% (0 MiB out of 938 MiB reference memory)

After features/support/hooks.rb:291 0.971
After features/support/hooks.rb:75 0.000
22.296
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.226
And I prepare Tails for memory erasure tests 0.399
And I find very few patterns in the guest's memory 3.763

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 1.679
Then patterns cover at least 99% of the test FS size in the guest's memory 3.324

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

When I umount "/mnt" 0.449
Then I find very few patterns in the guest's memory 4.452

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

After features/support/hooks.rb:291 1.037
After features/support/hooks.rb:75 0.000
43.975
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.074
And I prepare Tails for memory erasure tests 0.437
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.837
Then I find very few patterns in the guest's memory 4.085

Pattern coverage: 0.000% (0 MiB out of 943 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.343
Then patterns cover at least 86% of the test FS size in the guest's memory 5.212

Pattern coverage: 93.326% (119 MiB out of 127 MiB reference memory)

When I umount the USB drive 2.512
Then I find very few patterns in the guest's memory 4.252

Pattern coverage: 0.000% (0 MiB out of 943 MiB reference memory)

# read cache
When I mount the USB drive again 0.402
And I read the content of the test FS 0.701
Then patterns cover at least 99% of the test FS size in the guest's memory 3.287

Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.954
Then I find very few patterns in the guest's memory 3.875

Pattern coverage: 0.000% (0 MiB out of 943 MiB reference memory)

After features/support/hooks.rb:291 1.341
After features/support/hooks.rb:75 0.000
1:15.115
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 8.055
And I prepare Tails for memory erasure tests 0.371
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 31.557
Then I find very few patterns in the guest's memory 3.164

Pattern coverage: 0.000% (0 MiB out of 917 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.620
Then patterns cover at least 99% of the test FS size in the guest's memory 3.559

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

When I umount the USB drive 0.898
Then I find very few patterns in the guest's memory 4.656

Pattern coverage: 0.000% (0 MiB out of 917 MiB reference memory)

# read cache
When I mount the USB drive again 12.967
And I read the content of the test FS 0.431
Then patterns cover at least 99% of the test FS size in the guest's memory 3.417

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

When I umount the USB drive 0.965
Then I find very few patterns in the guest's memory 3.449

Pattern coverage: 0.000% (0 MiB out of 917 MiB reference memory)

After features/support/hooks.rb:291 3.800
After features/support/hooks.rb:75 0.000
50.308
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 9.866
And I prepare Tails for memory erasure tests 0.560
When I fill a 128 MiB file with a known pattern on the root filesystem 12.279
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.950
Then patterns cover at least 128 MiB in the guest's memory 2.617

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 1.999

Pattern coverage: 0.000% (0 MiB out of 935 MiB reference memory)

After features/support/hooks.rb:291 3.515
After features/support/hooks.rb:75 0.000
6:49.997
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 6:2.093
And I prepare Tails for memory erasure tests 0.408
When I fill a 128 MiB file with a known pattern on the persistent filesystem 25.150
When I trigger shutdown 0.036
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.288

Pattern coverage: 0.000% (0 MiB out of 951 MiB reference memory)

After features/support/hooks.rb:291 3.550
After features/support/hooks.rb:75 0.011