Project Number Date
test_Tails_ISO_devel 3458 12 Jul 2024, 00:37

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 12:34.748 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.
27.110
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 9.312
And I prepare Tails for memory erasure tests 0.504
When I start a process allocating 128 MiB of memory with a known pattern 2.365
Then patterns cover at least 128 MiB in the guest's memory 6.953

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

When I kill the allocating process 1.935
Then I find very few patterns in the guest's memory 6.038

Pattern coverage: 0.000% (0 MiB out of 879 MiB reference memory)

After features/support/hooks.rb:326 0.936
After features/support/hooks.rb:100 0.000
32.505
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 9.936
And I prepare Tails for memory erasure tests 0.679
And I find very few patterns in the guest's memory 5.940

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 3.154
Then patterns cover at least 99% of the test FS size in the guest's memory 6.988

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

When I umount "/mnt" 0.961
Then I find very few patterns in the guest's memory 4.844

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

After features/support/hooks.rb:326 0.836
After features/support/hooks.rb:100 0.000
53.258
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.801
And I prepare Tails for memory erasure tests 0.430
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.083
Then I find very few patterns in the guest's memory 4.935

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

# write cache
When I fill the USB drive with a known pattern 3.970
Then patterns cover at least 86% of the test FS size in the guest's memory 4.626

Pattern coverage: 89.674% (114 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.609
Then I find very few patterns in the guest's memory 4.799

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

# read cache
When I mount the USB drive again 0.320
And I read the content of the test FS 2.440
Then patterns cover at least 99% of the test FS size in the guest's memory 5.466

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

When I umount the USB drive 0.830
Then I find very few patterns in the guest's memory 4.944

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

After features/support/hooks.rb:326 0.972
After features/support/hooks.rb:100 0.000
1:21.076
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.935
And I prepare Tails for memory erasure tests 0.506
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 36.398
Then I find very few patterns in the guest's memory 4.100

Pattern coverage: 0.000% (0 MiB out of 882 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.337
Then patterns cover at least 99% of the test FS size in the guest's memory 3.655

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

When I umount the USB drive 1.294
Then I find very few patterns in the guest's memory 3.989

Pattern coverage: 0.000% (0 MiB out of 882 MiB reference memory)

# read cache
When I mount the USB drive again 10.593
And I read the content of the test FS 0.487
Then patterns cover at least 99% of the test FS size in the guest's memory 3.751

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

When I umount the USB drive 1.046
Then I find very few patterns in the guest's memory 3.981

Pattern coverage: 0.000% (0 MiB out of 882 MiB reference memory)

After features/support/hooks.rb:326 0.907
After features/support/hooks.rb:100 0.000
54.230
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.340
And I prepare Tails for memory erasure tests 0.569
When I fill a 128 MiB file with a known pattern on the root filesystem 17.408
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.512
Then patterns cover at least 128 MiB in the guest's memory 3.339

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

When I trigger shutdown 0.012
And I wait 20 seconds 20.008

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.038

Pattern coverage: 0.000% (0 MiB out of 878 MiB reference memory)

After features/support/hooks.rb:326 3.557
After features/support/hooks.rb:100 0.000
8:26.566
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 7:41.779
And I prepare Tails for memory erasure tests 0.457
When I fill a 128 MiB file with a known pattern on the persistent filesystem 22.014
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 2.280

Pattern coverage: 0.000% (0 MiB out of 870 MiB reference memory)

After features/support/hooks.rb:326 3.598
After features/support/hooks.rb:100 0.015