Project Number Date
test_Tails_ISO_devel 3345 01 Apr 2024, 12:23

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 10:36.904 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.
23.746
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 9.527
And I prepare Tails for memory erasure tests 0.444
When I start a process allocating 128 MiB of memory with a known pattern 1.223
Then patterns cover at least 128 MiB in the guest's memory 4.634

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

When I kill the allocating process 0.436
Then I find very few patterns in the guest's memory 7.480

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

After features/support/hooks.rb:291 1.733
After features/support/hooks.rb:75 0.000
28.909
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 9.817
And I prepare Tails for memory erasure tests 0.429
And I find very few patterns in the guest's memory 5.131

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.568
Then patterns cover at least 99% of the test FS size in the guest's memory 4.036

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

When I umount "/mnt" 0.704
Then I find very few patterns in the guest's memory 6.222

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

After features/support/hooks.rb:291 1.143
After features/support/hooks.rb:75 0.000
45.192
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.512
And I prepare Tails for memory erasure tests 0.428
When I plug and mount a 128 MiB USB drive with a vfat filesystem 8.146
Then I find very few patterns in the guest's memory 5.038

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

# write cache
When I fill the USB drive with a known pattern 2.430
Then patterns cover at least 86% of the test FS size in the guest's memory 4.506

Pattern coverage: 86.766% (110 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.256
Then I find very few patterns in the guest's memory 4.729

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

# read cache
When I mount the USB drive again 0.316
And I read the content of the test FS 0.752
Then patterns cover at least 99% of the test FS size in the guest's memory 4.168

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

When I umount the USB drive 0.585
Then I find very few patterns in the guest's memory 4.320

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

After features/support/hooks.rb:291 1.746
After features/support/hooks.rb:75 0.000
1:17.939
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 8.301
And I prepare Tails for memory erasure tests 0.401
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.755
Then I find very few patterns in the guest's memory 5.726

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

# write cache
When I fill the USB drive with a known pattern 1.711
Then patterns cover at least 99% of the test FS size in the guest's memory 3.460

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

When I umount the USB drive 0.590
Then I find very few patterns in the guest's memory 4.044

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

# read cache
When I mount the USB drive again 13.670
And I read the content of the test FS 0.379
Then patterns cover at least 99% of the test FS size in the guest's memory 4.286

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

When I umount the USB drive 1.379
Then I find very few patterns in the guest's memory 4.232

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

After features/support/hooks.rb:291 0.837
After features/support/hooks.rb:75 0.000
55.337
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 9.013
And I prepare Tails for memory erasure tests 0.479
When I fill a 128 MiB file with a known pattern on the root filesystem 19.090
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.509
Then patterns cover at least 128 MiB in the guest's memory 3.305

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

When I trigger shutdown 0.012
And I wait 20 seconds 20.009

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.916

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

After features/support/hooks.rb:291 3.548
After features/support/hooks.rb:75 0.000
6:45.778
Before features/support/hooks.rb:245 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:1.775
And I prepare Tails for memory erasure tests 0.473
When I fill a 128 MiB file with a known pattern on the persistent filesystem 21.035
When I trigger shutdown 0.010
And I wait 20 seconds 20.018

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.463

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

After features/support/hooks.rb:291 3.596
After features/support/hooks.rb:75 0.014