Project Number Date
test_Tails_ISO_devel 3450 08 Jul 2024, 12:49

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 10:36.167 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.
17.313
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 7.969
And I prepare Tails for memory erasure tests 0.444
When I start a process allocating 128 MiB of memory with a known pattern 1.307
Then patterns cover at least 128 MiB in the guest's memory 3.588

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

When I kill the allocating process 0.214
Then I find very few patterns in the guest's memory 3.788

Pattern coverage: 0.000% (0 MiB out of 870 MiB reference memory)

After features/support/hooks.rb:326 1.320
After features/support/hooks.rb:100 0.000
21.220
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 7.907
And I prepare Tails for memory erasure tests 0.379
And I find very few patterns in the guest's memory 3.862

Pattern coverage: 0.000% (0 MiB out of 870 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.578
Then patterns cover at least 99% of the test FS size in the guest's memory 3.165

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

When I umount "/mnt" 0.529
Then I find very few patterns in the guest's memory 3.798

Pattern coverage: 0.000% (0 MiB out of 870 MiB reference memory)

After features/support/hooks.rb:326 0.711
After features/support/hooks.rb:100 0.000
41.227
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 7.984
And I prepare Tails for memory erasure tests 0.408
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.040
Then I find very few patterns in the guest's memory 3.831

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

# write cache
When I fill the USB drive with a known pattern 2.395
Then patterns cover at least 86% of the test FS size in the guest's memory 3.206

Pattern coverage: 87.690% (111 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.301
Then I find very few patterns in the guest's memory 3.431

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

# read cache
When I mount the USB drive again 0.265
And I read the content of the test FS 0.464
Then patterns cover at least 99% of the test FS size in the guest's memory 3.206

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

When I umount the USB drive 0.495
Then I find very few patterns in the guest's memory 4.196

Pattern coverage: 0.001% (0 MiB out of 876 MiB reference memory)

After features/support/hooks.rb:326 0.770
After features/support/hooks.rb:100 0.000
1:8.357
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 7.984
And I prepare Tails for memory erasure tests 0.358
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 36.294
Then I find very few patterns in the guest's memory 3.353

Pattern coverage: 0.000% (0 MiB out of 866 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.906
Then patterns cover at least 99% of the test FS size in the guest's memory 2.698

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

When I umount the USB drive 0.919
Then I find very few patterns in the guest's memory 3.361

Pattern coverage: 0.000% (0 MiB out of 866 MiB reference memory)

# read cache
When I mount the USB drive again 4.548
And I read the content of the test FS 0.462
Then patterns cover at least 99% of the test FS size in the guest's memory 2.581

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

When I umount the USB drive 0.653
Then I find very few patterns in the guest's memory 3.233

Pattern coverage: 0.000% (0 MiB out of 866 MiB reference memory)

After features/support/hooks.rb:326 0.887
After features/support/hooks.rb:100 0.000
53.088
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 7.955
And I prepare Tails for memory erasure tests 0.405
When I fill a 128 MiB file with a known pattern on the root filesystem 18.336
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.998
Then patterns cover at least 128 MiB in the guest's memory 2.640

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

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 1.720

Pattern coverage: 0.000% (0 MiB out of 853 MiB reference memory)

After features/support/hooks.rb:326 3.470
After features/support/hooks.rb:100 0.000
7:14.960
Before features/support/hooks.rb:269 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:30.563
And I prepare Tails for memory erasure tests 0.412
When I fill a 128 MiB file with a known pattern on the persistent filesystem 21.857
When I trigger shutdown 0.010
And I wait 20 seconds 20.001

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.116

Pattern coverage: 0.000% (0 MiB out of 868 MiB reference memory)

After features/support/hooks.rb:326 3.503
After features/support/hooks.rb:100 0.012