Project Number Date
test_Tails_ISO_stable 5052 28 Aug 2024, 08:53

Feature Report

Steps Scenarios Features
Feature Passed Failed Skipped Pending Undefined Total Passed Failed Total Duration Status
System memory erasure on shutdown 51 0 0 0 0 51 6 0 6 11:49.324 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.
27.132
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 10.792
And I prepare Tails for memory erasure tests 0.701
When I start a process allocating 128 MiB of memory with a known pattern 2.372
Then patterns cover at least 128 MiB in the guest's memory 4.685

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

When I kill the allocating process 1.872
Then I find very few patterns in the guest's memory after 3 seconds 6.706

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

After features/support/hooks.rb:326 1.086
After features/support/hooks.rb:100 0.000
26.084
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.796
And I prepare Tails for memory erasure tests 0.687
And I find very few patterns in the guest's memory 3.107

Pattern coverage: 0.000% (0 MiB out of 912 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.941
Then patterns cover at least 99% of the test FS size in the guest's memory 3.507

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

When I umount "/mnt" 0.976
Then I find very few patterns in the guest's memory after 3 seconds 7.068

Pattern coverage: 0.000% (0 MiB out of 912 MiB reference memory)

After features/support/hooks.rb:326 2.985
After features/support/hooks.rb:100 0.000
54.438
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.548
And I prepare Tails for memory erasure tests 0.545
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.261
Then I find very few patterns in the guest's memory 3.772

Pattern coverage: 0.000% (0 MiB out of 913 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 5.278
Then patterns cover at least 75% of the test FS size in the guest's memory 4.662

Pattern coverage: 91.058% (116 MiB out of 127 MiB reference memory)

When I umount the USB drive 3.006
Then I find very few patterns in the guest's memory after 3 seconds 5.817

Pattern coverage: 0.000% (0 MiB out of 913 MiB reference memory)

# read cache
When I mount the USB drive again 0.305
And I read the content of the test FS 0.911
Then patterns cover at least 99% of the test FS size in the guest's memory 3.565

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

When I umount the USB drive 0.922
Then I find very few patterns in the guest's memory after 3 seconds 6.840

Pattern coverage: 0.000% (0 MiB out of 913 MiB reference memory)

After features/support/hooks.rb:326 0.924
After features/support/hooks.rb:100 0.000
1:23.138
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.463
And I prepare Tails for memory erasure tests 0.524
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 38.513
Then I find very few patterns in the guest's memory 3.191

Pattern coverage: 0.000% (0 MiB out of 909 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.539
Then patterns cover at least 99% of the test FS size in the guest's memory 4.013

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

When I umount the USB drive 1.980
Then I find very few patterns in the guest's memory after 3 seconds 6.025

Pattern coverage: 0.000% (0 MiB out of 909 MiB reference memory)

# read cache
When I mount the USB drive again 6.658
And I read the content of the test FS 0.622
Then patterns cover at least 99% of the test FS size in the guest's memory 3.535

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

When I umount the USB drive 0.859
Then I find very few patterns in the guest's memory after 3 seconds 6.209

Pattern coverage: 0.000% (0 MiB out of 909 MiB reference memory)

After features/support/hooks.rb:326 1.143
After features/support/hooks.rb:100 0.000
52.181
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 9.820
And I prepare Tails for memory erasure tests 0.626
When I fill a 128 MiB file with a known pattern on the root filesystem 14.978
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.439
Then patterns cover at least 128 MiB in the guest's memory 3.472

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

When I trigger shutdown 0.014
Then I find very few patterns in the guest's memory after 20 seconds 20.828

Pattern coverage: 0.000% (0 MiB out of 901 MiB reference memory)

After features/support/hooks.rb:326 3.529
After features/support/hooks.rb:100 0.000
7:46.349
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 7:0.637
And I prepare Tails for memory erasure tests 0.424
When I fill a 128 MiB file with a known pattern on the persistent filesystem 23.926
When I trigger shutdown 0.015
Then I find very few patterns in the guest's memory after 20 seconds 21.345

Pattern coverage: 0.000% (0 MiB out of 891 MiB reference memory)

After features/support/hooks.rb:326 3.532
After features/support/hooks.rb:100 0.012