Project Number Date
test_Tails_ISO_stable 4920 08 Jul 2024, 15:59

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 11:17.980 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.
20.632
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.528
And I prepare Tails for memory erasure tests 0.437
When I start a process allocating 128 MiB of memory with a known pattern 2.441
Then patterns cover at least 128 MiB in the guest's memory 3.825

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

When I kill the allocating process 1.571
Then I find very few patterns in the guest's memory 3.827

Pattern coverage: 0.000% (0 MiB out of 897 MiB reference memory)

After features/support/hooks.rb:326 0.807
After features/support/hooks.rb:100 0.000
24.636
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.613
And I prepare Tails for memory erasure tests 0.488
And I find very few patterns in the guest's memory 3.601

Pattern coverage: 0.000% (0 MiB out of 890 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.079
Then patterns cover at least 99% of the test FS size in the guest's memory 3.788

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

When I umount "/mnt" 0.919
Then I find very few patterns in the guest's memory 5.144

Pattern coverage: 0.000% (0 MiB out of 890 MiB reference memory)

After features/support/hooks.rb:326 1.117
After features/support/hooks.rb:100 0.000
45.968
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.789
And I prepare Tails for memory erasure tests 0.446
When I plug and mount a 128 MiB USB drive with a vfat filesystem 11.120
Then I find very few patterns in the guest's memory 4.314

Pattern coverage: 0.000% (0 MiB out of 889 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.616
Then patterns cover at least 86% of the test FS size in the guest's memory 3.429

Pattern coverage: 89.270% (113 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.560
Then I find very few patterns in the guest's memory 3.818

Pattern coverage: 0.000% (0 MiB out of 889 MiB reference memory)

# read cache
When I mount the USB drive again 0.245
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 4.277

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

When I umount the USB drive 0.587
Then I find very few patterns in the guest's memory 4.203

Pattern coverage: 0.000% (0 MiB out of 889 MiB reference memory)

After features/support/hooks.rb:326 2.289
After features/support/hooks.rb:100 0.000
1:23.364
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 9.243
And I prepare Tails for memory erasure tests 0.441
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 35.196
Then I find very few patterns in the guest's memory 3.880

Pattern coverage: 0.000% (0 MiB out of 880 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 3.894
Then patterns cover at least 99% of the test FS size in the guest's memory 3.635

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

When I umount the USB drive 0.979
Then I find very few patterns in the guest's memory 4.288

Pattern coverage: 0.000% (0 MiB out of 880 MiB reference memory)

# read cache
When I mount the USB drive again 12.174
And I read the content of the test FS 0.891
Then patterns cover at least 99% of the test FS size in the guest's memory 3.586

Pattern coverage: 106.117% (97 MiB out of 91 MiB reference memory)

When I umount the USB drive 1.087
Then I find very few patterns in the guest's memory 4.063

Pattern coverage: 0.000% (0 MiB out of 880 MiB reference memory)

After features/support/hooks.rb:326 0.954
After features/support/hooks.rb:100 0.000
53.547
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 9.482
And I prepare Tails for memory erasure tests 0.562
When I fill a 128 MiB file with a known pattern on the root filesystem 17.174
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.018
Then patterns cover at least 128 MiB in the guest's memory 2.466

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 1.812

Pattern coverage: 0.000% (0 MiB out of 886 MiB reference memory)

After features/support/hooks.rb:326 3.546
After features/support/hooks.rb:100 0.000
7:29.830
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 6:45.456
And I prepare Tails for memory erasure tests 0.439
When I fill a 128 MiB file with a known pattern on the persistent filesystem 21.740
When I trigger shutdown 0.010
And I wait 20 seconds 20.006

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.177

Pattern coverage: 0.000% (0 MiB out of 902 MiB reference memory)

After features/support/hooks.rb:326 3.545
After features/support/hooks.rb:100 0.011