Project Number Date
test_Tails_ISO_stable 4949 16 Jul 2024, 21:07

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 11:15.831 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.
20.531
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.192
And I prepare Tails for memory erasure tests 0.452
When I start a process allocating 128 MiB of memory with a known pattern 2.504
Then patterns cover at least 128 MiB in the guest's memory 4.067

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

When I kill the allocating process 1.127
Then I find very few patterns in the guest's memory 4.186

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

After features/support/hooks.rb:326 1.809
After features/support/hooks.rb:100 0.000
25.575
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.183
And I prepare Tails for memory erasure tests 0.425
And I find very few patterns in the guest's memory 5.288

Pattern coverage: 0.000% (0 MiB out of 894 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.309
Then patterns cover at least 99% of the test FS size in the guest's memory 4.162

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

When I umount "/mnt" 0.996
Then I find very few patterns in the guest's memory 4.209

Pattern coverage: 0.000% (0 MiB out of 894 MiB reference memory)

After features/support/hooks.rb:326 1.138
After features/support/hooks.rb:100 0.000
53.442
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 9.365
And I prepare Tails for memory erasure tests 0.641
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.267
Then I find very few patterns in the guest's memory 4.648

Pattern coverage: 0.000% (0 MiB out of 873 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 7.935
Then patterns cover at least 86% of the test FS size in the guest's memory 4.124

Pattern coverage: 90.666% (115 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.495
Then I find very few patterns in the guest's memory 4.349

Pattern coverage: 0.000% (0 MiB out of 873 MiB reference memory)

# read cache
When I mount the USB drive again 0.307
And I read the content of the test FS 0.589
Then patterns cover at least 99% of the test FS size in the guest's memory 3.726

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

When I umount the USB drive 1.720
Then I find very few patterns in the guest's memory 4.269

Pattern coverage: 0.000% (0 MiB out of 873 MiB reference memory)

After features/support/hooks.rb:326 1.132
After features/support/hooks.rb:100 0.000
1:16.913
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.144
And I prepare Tails for memory erasure tests 0.480
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 37.951
Then I find very few patterns in the guest's memory 3.551

Pattern coverage: 0.000% (0 MiB out of 883 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 3.690
Then patterns cover at least 99% of the test FS size in the guest's memory 3.167

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

When I umount the USB drive 1.050
Then I find very few patterns in the guest's memory 3.567

Pattern coverage: 0.000% (0 MiB out of 883 MiB reference memory)

# read cache
When I mount the USB drive again 6.122
And I read the content of the test FS 0.479
Then patterns cover at least 99% of the test FS size in the guest's memory 3.778

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

When I umount the USB drive 1.370
Then I find very few patterns in the guest's memory 3.559

Pattern coverage: 0.000% (0 MiB out of 883 MiB reference memory)

After features/support/hooks.rb:326 1.030
After features/support/hooks.rb:100 0.000
53.799
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.229
And I prepare Tails for memory erasure tests 0.464
When I fill a 128 MiB file with a known pattern on the root filesystem 17.933
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.129
Then patterns cover at least 128 MiB in the guest's memory 3.167

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

When I trigger shutdown 0.016
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.839

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

After features/support/hooks.rb:326 3.533
After features/support/hooks.rb:100 0.000
7:25.568
Before features/support/hooks.rb:269 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:41.526
And I prepare Tails for memory erasure tests 0.393
When I fill a 128 MiB file with a known pattern on the persistent filesystem 21.403
When I trigger shutdown 0.014
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.212

Pattern coverage: 0.000% (0 MiB out of 899 MiB reference memory)

After features/support/hooks.rb:326 3.511
After features/support/hooks.rb:100 0.014