Project Number Date
test_Tails_ISO_stable 5071 04 Sep 2024, 20:42

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 11:11.449 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.
21.502
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.208
And I prepare Tails for memory erasure tests 0.373
When I start a process allocating 128 MiB of memory with a known pattern 1.272
Then patterns cover at least 128 MiB in the guest's memory 4.423

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

When I kill the allocating process 0.795
Then I find very few patterns in the guest's memory after 3 seconds 6.429

Pattern coverage: 0.000% (0 MiB out of 865 MiB reference memory)

After features/support/hooks.rb:326 0.791
After features/support/hooks.rb:100 0.000
24.291
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.235
And I prepare Tails for memory erasure tests 0.417
And I find very few patterns in the guest's memory 3.713

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.618
Then patterns cover at least 99% of the test FS size in the guest's memory 3.655

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

When I umount "/mnt" 0.442
Then I find very few patterns in the guest's memory after 3 seconds 6.209

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

After features/support/hooks.rb:326 0.808
After features/support/hooks.rb:100 0.000
46.264
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.205
And I prepare Tails for memory erasure tests 0.430
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.021
Then I find very few patterns in the guest's memory 3.097

Pattern coverage: 0.000% (0 MiB out of 862 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.359
Then patterns cover at least 75% of the test FS size in the guest's memory 3.437

Pattern coverage: 86.518% (110 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.163
Then I find very few patterns in the guest's memory after 3 seconds 6.389

Pattern coverage: 0.000% (0 MiB out of 862 MiB reference memory)

# read cache
When I mount the USB drive again 0.304
And I read the content of the test FS 0.614
Then patterns cover at least 99% of the test FS size in the guest's memory 3.660

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

When I umount the USB drive 0.575
Then I find very few patterns in the guest's memory after 3 seconds 6.002

Pattern coverage: 0.000% (0 MiB out of 862 MiB reference memory)

After features/support/hooks.rb:326 0.823
After features/support/hooks.rb:100 0.000
1:12.185
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.270
And I prepare Tails for memory erasure tests 0.464
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 33.453
Then I find very few patterns in the guest's memory 2.617

Pattern coverage: 0.000% (0 MiB out of 893 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.980
Then patterns cover at least 99% of the test FS size in the guest's memory 3.348

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

When I umount the USB drive 0.997
Then I find very few patterns in the guest's memory after 3 seconds 5.663

Pattern coverage: 0.000% (0 MiB out of 893 MiB reference memory)

# read cache
When I mount the USB drive again 5.188
And I read the content of the test FS 0.555
Then patterns cover at least 99% of the test FS size in the guest's memory 3.119

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

When I umount the USB drive 0.853
Then I find very few patterns in the guest's memory after 3 seconds 5.672

Pattern coverage: 0.000% (0 MiB out of 893 MiB reference memory)

After features/support/hooks.rb:326 0.906
After features/support/hooks.rb:100 0.000
56.135
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.207
And I prepare Tails for memory erasure tests 0.418
When I fill a 128 MiB file with a known pattern on the root filesystem 21.955
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.808
Then patterns cover at least 128 MiB in the guest's memory 2.940

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

When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 20.792

Pattern coverage: 0.000% (0 MiB out of 865 MiB reference memory)

After features/support/hooks.rb:326 3.540
After features/support/hooks.rb:100 0.000
7:31.069
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 6:48.096
And I prepare Tails for memory erasure tests 0.386
When I fill a 128 MiB file with a known pattern on the persistent filesystem 21.394
When I trigger shutdown 0.011
Then I find very few patterns in the guest's memory after 20 seconds 21.179

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

After features/support/hooks.rb:326 3.530
After features/support/hooks.rb:100 0.010