Project Number Date
test_Tails_ISO_20816-block-paths-bwrap 4 07 Mar 2025, 07:07

Feature Report

Steps Scenarios Features
Feature Passed Failed Skipped Pending Undefined Total Passed Failed Total Duration Status
System memory erasure on shutdown 51 0 0 0 0 51 6 0 6 10:35.897 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.
24.659
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 8.057
And I prepare Tails for memory erasure tests 0.510
When I start a process allocating 128 MiB of memory with a known pattern 2.531
Then patterns cover at least 128 MiB in the guest's memory 4.219

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

When I kill the allocating process 1.033
Then I find very few patterns in the guest's memory after 5 seconds 8.306

Pattern coverage: 0.000% (0 MiB out of 898 MiB reference memory)

After features/support/hooks.rb:330 1.751
After features/support/hooks.rb:100 0.000
24.269
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 8.018
And I prepare Tails for memory erasure tests 0.402
And I find very few patterns in the guest's memory 3.039

Pattern coverage: 0.000% (0 MiB out of 909 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.416
Then patterns cover at least 99% of the test FS size in the guest's memory 3.575

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

When I umount "/mnt" 0.596
Then I find very few patterns in the guest's memory after 3 seconds 6.220

Pattern coverage: 0.000% (0 MiB out of 909 MiB reference memory)

After features/support/hooks.rb:330 0.806
After features/support/hooks.rb:100 0.000
47.243
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 7.994
And I prepare Tails for memory erasure tests 0.423
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.112
Then I find very few patterns in the guest's memory 3.639

Pattern coverage: 0.000% (0 MiB out of 913 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.650
Then patterns cover at least 75% of the test FS size in the guest's memory 3.651

Pattern coverage: 88.131% (112 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.325
Then I find very few patterns in the guest's memory after 3 seconds 6.225

Pattern coverage: 0.000% (0 MiB out of 913 MiB reference memory)

# read cache
When I mount the USB drive again 0.452
And I read the content of the test FS 0.461
Then patterns cover at least 99% of the test FS size in the guest's memory 3.520

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

When I umount the USB drive 0.515
Then I find very few patterns in the guest's memory after 3 seconds 6.270

Pattern coverage: 0.000% (0 MiB out of 913 MiB reference memory)

After features/support/hooks.rb:330 0.813
After features/support/hooks.rb:100 0.000
1:10.606
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 7.965
And I prepare Tails for memory erasure tests 0.391
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 32.775
Then I find very few patterns in the guest's memory 3.046

Pattern coverage: 0.000% (0 MiB out of 912 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.183
Then patterns cover at least 99% of the test FS size in the guest's memory 3.203

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

When I umount the USB drive 1.169
Then I find very few patterns in the guest's memory after 3 seconds 5.759

Pattern coverage: 0.000% (0 MiB out of 912 MiB reference memory)

# read cache
When I mount the USB drive again 4.492
And I read the content of the test FS 0.501
Then patterns cover at least 99% of the test FS size in the guest's memory 2.863

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

When I umount the USB drive 0.734
Then I find very few patterns in the guest's memory after 3 seconds 5.519

Pattern coverage: 0.000% (0 MiB out of 912 MiB reference memory)

After features/support/hooks.rb:330 1.397
After features/support/hooks.rb:100 0.000
49.651
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 8.120
And I prepare Tails for memory erasure tests 0.429
When I fill a 128 MiB file with a known pattern on the root filesystem 15.584
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.053
Then patterns cover at least 128 MiB in the guest's memory 2.702

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

When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 20.747

Pattern coverage: 0.000% (0 MiB out of 914 MiB reference memory)

After features/support/hooks.rb:330 3.512
After features/support/hooks.rb:100 0.000
6:59.467
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:17.709
And I prepare Tails for memory erasure tests 0.389
When I fill a 128 MiB file with a known pattern on the persistent filesystem 20.166
When I trigger shutdown 0.013
Then I find very few patterns in the guest's memory after 20 seconds 21.188

Pattern coverage: 0.000% (0 MiB out of 908 MiB reference memory)

After features/support/hooks.rb:330 3.526
After features/support/hooks.rb:100 0.014