Project Number Date
test_Tails_ISO_20898-tinyrpc-drop 11 22 Apr 2025, 21:20

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 10:52.668 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.
24.340
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 8.425
And I prepare Tails for memory erasure tests 0.423
When I start a process allocating 128 MiB of memory with a known pattern 2.315
Then patterns cover at least 128 MiB in the guest's memory 3.797

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

When I kill the allocating process 0.902
Then I find very few patterns in the guest's memory after 5 seconds 8.476

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

After features/support/hooks.rb:330 0.682
After features/support/hooks.rb:100 0.000
24.858
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 7.954
And I prepare Tails for memory erasure tests 0.429
And I find very few patterns in the guest's memory 3.349

Pattern coverage: 0.000% (0 MiB out of 907 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.318
Then patterns cover at least 99% of the test FS size in the guest's memory 3.564

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

When I umount "/mnt" 0.755
Then I find very few patterns in the guest's memory after 3 seconds 6.486

Pattern coverage: 0.000% (0 MiB out of 907 MiB reference memory)

After features/support/hooks.rb:330 0.699
After features/support/hooks.rb:100 0.000
48.225
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 8.274
And I prepare Tails for memory erasure tests 0.471
When I plug and mount a 128 MiB USB drive with a vfat filesystem 9.903
Then I find very few patterns in the guest's memory 2.891

Pattern coverage: 0.000% (0 MiB out of 906 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.676
Then patterns cover at least 75% of the test FS size in the guest's memory 4.308

Pattern coverage: 88.906% (113 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.937
Then I find very few patterns in the guest's memory after 3 seconds 6.384

Pattern coverage: 0.000% (0 MiB out of 906 MiB reference memory)

# read cache
When I mount the USB drive again 0.206
And I read the content of the test FS 0.557
Then patterns cover at least 99% of the test FS size in the guest's memory 3.898

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

When I umount the USB drive 0.492
Then I find very few patterns in the guest's memory after 3 seconds 6.222

Pattern coverage: 0.000% (0 MiB out of 906 MiB reference memory)

After features/support/hooks.rb:330 1.007
After features/support/hooks.rb:100 0.000
1:15.616
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 8.162
And I prepare Tails for memory erasure tests 0.458
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 37.377
Then I find very few patterns in the guest's memory 3.003

Pattern coverage: 0.000% (0 MiB out of 908 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.705
Then patterns cover at least 99% of the test FS size in the guest's memory 3.049

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

When I umount the USB drive 0.638
Then I find very few patterns in the guest's memory after 3 seconds 6.011

Pattern coverage: 0.000% (0 MiB out of 908 MiB reference memory)

# read cache
When I mount the USB drive again 4.658
And I read the content of the test FS 0.489
Then patterns cover at least 99% of the test FS size in the guest's memory 3.419

Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)

When I umount the USB drive 0.775
Then I find very few patterns in the guest's memory after 3 seconds 5.866

Pattern coverage: 0.000% (0 MiB out of 908 MiB reference memory)

After features/support/hooks.rb:330 1.012
After features/support/hooks.rb:100 0.000
51.622
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 8.834
And I prepare Tails for memory erasure tests 0.585
When I fill a 128 MiB file with a known pattern on the root filesystem 16.441
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.706
Then patterns cover at least 128 MiB in the guest's memory 3.094

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 20.945

Pattern coverage: 0.000% (0 MiB out of 904 MiB reference memory)

After features/support/hooks.rb:330 3.504
After features/support/hooks.rb:100 0.000
7:8.003
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:25.678
And I prepare Tails for memory erasure tests 0.487
When I fill a 128 MiB file with a known pattern on the persistent filesystem 20.544
When I trigger shutdown 0.018
Then I find very few patterns in the guest's memory after 20 seconds 21.273

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

After features/support/hooks.rb:330 3.527
After features/support/hooks.rb:100 0.012