Project Number Date
test_Tails_ISO_feature-arti 68 24 May 2025, 16:47

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 11:55.313 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.
27.048
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.007
Given I have started Tails from DVD without network and logged in 8.476
And I prepare Tails for memory erasure tests 0.632
When I start a process allocating 128 MiB of memory with a known pattern 2.391
Then patterns cover at least 128 MiB in the guest's memory 4.515

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

When I kill the allocating process 0.936
Then I find very few patterns in the guest's memory after 5 seconds 10.096

Pattern coverage: 0.000% (0 MiB out of 887 MiB reference memory)

After features/support/hooks.rb:330 1.045
After features/support/hooks.rb:100 0.000
26.263
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 8.433
And I prepare Tails for memory erasure tests 0.491
And I find very few patterns in the guest's memory 3.632

Pattern coverage: 0.000% (0 MiB out of 874 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.970
Then patterns cover at least 99% of the test FS size in the guest's memory 4.501

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

When I umount "/mnt" 0.594
Then I find very few patterns in the guest's memory after 3 seconds 6.639

Pattern coverage: 0.000% (0 MiB out of 874 MiB reference memory)

After features/support/hooks.rb:330 0.993
After features/support/hooks.rb:100 0.000
56.112
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 8.440
And I prepare Tails for memory erasure tests 0.587
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.331
Then I find very few patterns in the guest's memory 3.974

Pattern coverage: 0.000% (0 MiB out of 883 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 3.055
Then patterns cover at least 75% of the test FS size in the guest's memory 4.382

Pattern coverage: 90.014% (114 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.117
Then I find very few patterns in the guest's memory after 3 seconds 6.920

Pattern coverage: 0.000% (0 MiB out of 883 MiB reference memory)

# read cache
When I mount the USB drive again 0.218
And I read the content of the test FS 5.553
Then patterns cover at least 99% of the test FS size in the guest's memory 4.311

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

When I umount the USB drive 0.424
Then I find very few patterns in the guest's memory after 3 seconds 6.795

Pattern coverage: 0.000% (0 MiB out of 883 MiB reference memory)

After features/support/hooks.rb:330 1.351
After features/support/hooks.rb:100 0.000
1:15.069
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 8.272
And I prepare Tails for memory erasure tests 0.609
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 34.295
Then I find very few patterns in the guest's memory 2.819

Pattern coverage: 0.000% (0 MiB out of 867 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.898
Then patterns cover at least 99% of the test FS size in the guest's memory 4.023

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

When I umount the USB drive 0.935
Then I find very few patterns in the guest's memory after 3 seconds 6.181

Pattern coverage: 0.000% (0 MiB out of 867 MiB reference memory)

# read cache
When I mount the USB drive again 4.796
And I read the content of the test FS 0.454
Then patterns cover at least 99% of the test FS size in the guest's memory 3.717

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

When I umount the USB drive 0.701
Then I find very few patterns in the guest's memory after 3 seconds 6.361

Pattern coverage: 0.000% (0 MiB out of 867 MiB reference memory)

After features/support/hooks.rb:330 2.932
After features/support/hooks.rb:100 0.000
51.299
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 8.458
And I prepare Tails for memory erasure tests 0.722
When I fill a 128 MiB file with a known pattern on the root filesystem 15.845
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.111
Then patterns cover at least 128 MiB in the guest's memory 3.208

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

When I trigger shutdown 0.024
Then I find very few patterns in the guest's memory after 20 seconds 20.929

Pattern coverage: 0.000% (0 MiB out of 867 MiB reference memory)

After features/support/hooks.rb:330 3.731
After features/support/hooks.rb:100 0.000
7:59.519
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 7:12.666
And I prepare Tails for memory erasure tests 0.496
When I fill a 128 MiB file with a known pattern on the persistent filesystem 24.930
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 21.412

Pattern coverage: 0.000% (0 MiB out of 914 MiB reference memory)

After features/support/hooks.rb:330 3.618
After features/support/hooks.rb:100 0.022