Project Number Date
test_Tails_ISO_stable 4869 03 Jun 2024, 22:22

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 11:27.321 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.
21.967
Before features/support/hooks.rb:265 0.003
Given I have started Tails from DVD without network and logged in 8.161
And I prepare Tails for memory erasure tests 0.400
When I start a process allocating 128 MiB of memory with a known pattern 4.247
Then patterns cover at least 128 MiB in the guest's memory 3.951

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

When I kill the allocating process 0.962
Then I find very few patterns in the guest's memory 4.243

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

After features/support/hooks.rb:311 1.101
After features/support/hooks.rb:100 0.000
24.751
Before features/support/hooks.rb:265 0.002
Given I have started Tails from DVD without network and logged in 8.168
And I prepare Tails for memory erasure tests 0.466
And I find very few patterns in the guest's memory 4.993

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.696
Then patterns cover at least 99% of the test FS size in the guest's memory 3.990

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

When I umount "/mnt" 1.345
Then I find very few patterns in the guest's memory 4.091

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

After features/support/hooks.rb:311 1.452
After features/support/hooks.rb:100 0.000
45.608
Before features/support/hooks.rb:265 0.003
Given I have started Tails from DVD without network and logged in 8.559
And I prepare Tails for memory erasure tests 0.611
When I plug and mount a 128 MiB USB drive with a vfat filesystem 9.097
Then I find very few patterns in the guest's memory 4.374

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

# write cache
When I fill the USB drive with a known pattern 2.718
Then patterns cover at least 86% of the test FS size in the guest's memory 4.632

Pattern coverage: 90.063% (114 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.244
Then I find very few patterns in the guest's memory 4.631

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

# read cache
When I mount the USB drive again 0.326
And I read the content of the test FS 0.494
Then patterns cover at least 99% of the test FS size in the guest's memory 3.777

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

When I umount the USB drive 0.659
Then I find very few patterns in the guest's memory 4.479

Pattern coverage: 0.001% (0 MiB out of 882 MiB reference memory)

After features/support/hooks.rb:311 1.429
After features/support/hooks.rb:100 0.000
1:13.092
Before features/support/hooks.rb:265 0.002
Given I have started Tails from DVD without network and logged in 8.252
And I prepare Tails for memory erasure tests 0.484
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 36.843
Then I find very few patterns in the guest's memory 3.919

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

# write cache
When I fill the USB drive with a known pattern 2.862
Then patterns cover at least 99% of the test FS size in the guest's memory 3.126

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

When I umount the USB drive 1.049
Then I find very few patterns in the guest's memory 3.774

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

# read cache
When I mount the USB drive again 4.882
And I read the content of the test FS 0.472
Then patterns cover at least 99% of the test FS size in the guest's memory 3.156

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

When I umount the USB drive 0.679
Then I find very few patterns in the guest's memory 3.587

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

After features/support/hooks.rb:311 0.859
After features/support/hooks.rb:100 0.000
54.259
Before features/support/hooks.rb:265 0.002
Given I have started Tails from DVD without network and logged in 9.309
And I prepare Tails for memory erasure tests 0.443
When I fill a 128 MiB file with a known pattern on the root filesystem 17.721
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.140
Then patterns cover at least 128 MiB in the guest's memory 2.759

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

When I trigger shutdown 0.015
And I wait 20 seconds 20.015

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.853

Pattern coverage: 0.000% (0 MiB out of 876 MiB reference memory)

After features/support/hooks.rb:311 3.552
After features/support/hooks.rb:100 0.000
7:47.641
Before features/support/hooks.rb:265 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 7:2.752
And I prepare Tails for memory erasure tests 0.406
When I fill a 128 MiB file with a known pattern on the persistent filesystem 22.282
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 2.178

Pattern coverage: 0.000% (0 MiB out of 888 MiB reference memory)

After features/support/hooks.rb:311 3.478
After features/support/hooks.rb:100 0.013