Project Number Date
test_Tails_ISO_feature-arti 95 22 Jun 2025, 17:30

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 12:26.693 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.
28.851
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 10.355
And I prepare Tails for memory erasure tests 0.522
When I start a process allocating 128 MiB of memory with a known pattern 2.544
Then patterns cover at least 128 MiB in the guest's memory 4.245

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

When I kill the allocating process 1.180
Then I find very few patterns in the guest's memory after 5 seconds 10.003

Pattern coverage: 0.000% (0 MiB out of 867 MiB reference memory)

After features/support/hooks.rb:330 1.140
After features/support/hooks.rb:100 0.000
28.696
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.005
Given I have started Tails from DVD without network and logged in 10.654
And I prepare Tails for memory erasure tests 0.564
And I find very few patterns in the guest's memory 2.997

Pattern coverage: 0.000% (0 MiB out of 871 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 3.905
Then patterns cover at least 99% of the test FS size in the guest's memory 4.248

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

When I umount "/mnt" 0.642
Then I find very few patterns in the guest's memory after 3 seconds 5.684

Pattern coverage: 0.000% (0 MiB out of 871 MiB reference memory)

After features/support/hooks.rb:330 0.965
After features/support/hooks.rb:100 0.000
51.441
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 10.258
And I prepare Tails for memory erasure tests 0.535
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.210
Then I find very few patterns in the guest's memory 3.130

Pattern coverage: 0.000% (0 MiB out of 869 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 4.013
Then patterns cover at least 75% of the test FS size in the guest's memory 4.204

Pattern coverage: 88.440% (112 MiB out of 127 MiB reference memory)

When I umount the USB drive 2.254
Then I find very few patterns in the guest's memory after 3 seconds 5.803

Pattern coverage: 0.000% (0 MiB out of 869 MiB reference memory)

# read cache
When I mount the USB drive again 0.375
And I read the content of the test FS 0.559
Then patterns cover at least 99% of the test FS size in the guest's memory 3.395

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

When I umount the USB drive 0.454
Then I find very few patterns in the guest's memory after 3 seconds 6.245

Pattern coverage: 0.001% (0 MiB out of 869 MiB reference memory)

After features/support/hooks.rb:330 1.659
After features/support/hooks.rb:100 0.000
1:28.137
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.004
Given I have started Tails from DVD without network and logged in 9.050
And I prepare Tails for memory erasure tests 0.483
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 48.702
Then I find very few patterns in the guest's memory 3.332

Pattern coverage: 0.000% (0 MiB out of 871 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.729
Then patterns cover at least 99% of the test FS size in the guest's memory 2.466

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

When I umount the USB drive 0.704
Then I find very few patterns in the guest's memory after 3 seconds 5.880

Pattern coverage: 0.000% (0 MiB out of 871 MiB reference memory)

# read cache
When I mount the USB drive again 5.394
And I read the content of the test FS 0.712
Then patterns cover at least 99% of the test FS size in the guest's memory 3.359

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

When I umount the USB drive 0.889
Then I find very few patterns in the guest's memory after 3 seconds 5.432

Pattern coverage: 0.000% (0 MiB out of 871 MiB reference memory)

After features/support/hooks.rb:330 1.245
After features/support/hooks.rb:100 0.000
54.784
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 10.491
And I prepare Tails for memory erasure tests 0.506
When I fill a 128 MiB file with a known pattern on the root filesystem 17.772
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.111
Then patterns cover at least 128 MiB in the guest's memory 3.142

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

When I trigger shutdown 0.013
Then I find very few patterns in the guest's memory after 20 seconds 20.747

Pattern coverage: 0.000% (0 MiB out of 874 MiB reference memory)

After features/support/hooks.rb:330 3.540
After features/support/hooks.rb:100 0.000
8:14.781
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 7:30.146
And I prepare Tails for memory erasure tests 0.415
When I fill a 128 MiB file with a known pattern on the persistent filesystem 22.650
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 21.556

Pattern coverage: 0.000% (0 MiB out of 905 MiB reference memory)

After features/support/hooks.rb:330 3.528
After features/support/hooks.rb:100 0.014