Project Number Date
test_Tails_ISO_20898-tinyrpc-drop 14 25 Apr 2025, 23:18

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 11:8.361 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.
23.500
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 8.036
And I prepare Tails for memory erasure tests 0.581
When I start a process allocating 128 MiB of memory with a known pattern 1.377
Then patterns cover at least 128 MiB in the guest's memory 4.767

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

When I kill the allocating process 0.229
Then I find very few patterns in the guest's memory after 5 seconds 8.508

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

After features/support/hooks.rb:330 0.682
After features/support/hooks.rb:100 0.000
24.924
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 8.091
And I prepare Tails for memory erasure tests 0.597
And I find very few patterns in the guest's memory 3.667

Pattern coverage: 0.000% (0 MiB out of 884 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.358
Then patterns cover at least 99% of the test FS size in the guest's memory 4.115

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

When I umount "/mnt" 0.288
Then I find very few patterns in the guest's memory after 3 seconds 6.806

Pattern coverage: 0.000% (0 MiB out of 884 MiB reference memory)

After features/support/hooks.rb:330 0.758
After features/support/hooks.rb:100 0.000
45.937
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 8.252
And I prepare Tails for memory erasure tests 0.594
When I plug and mount a 128 MiB USB drive with a vfat filesystem 9.091
Then I find very few patterns in the guest's memory 3.265

Pattern coverage: 0.000% (0 MiB out of 884 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.260
Then patterns cover at least 75% of the test FS size in the guest's memory 4.031

Pattern coverage: 87.023% (111 MiB out of 127 MiB reference memory)

When I umount the USB drive 0.516
Then I find very few patterns in the guest's memory after 3 seconds 6.341

Pattern coverage: 0.000% (0 MiB out of 884 MiB reference memory)

# read cache
When I mount the USB drive again 0.221
And I read the content of the test FS 0.525
Then patterns cover at least 99% of the test FS size in the guest's memory 3.893

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

When I umount the USB drive 0.414
Then I find very few patterns in the guest's memory after 3 seconds 6.527

Pattern coverage: 0.000% (0 MiB out of 884 MiB reference memory)

After features/support/hooks.rb:330 0.794
After features/support/hooks.rb:100 0.000
1:10.493
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 7.990
And I prepare Tails for memory erasure tests 0.639
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 32.115
Then I find very few patterns in the guest's memory 2.964

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

# write cache
When I fill the USB drive with a known pattern 1.635
Then patterns cover at least 99% of the test FS size in the guest's memory 3.467

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

When I umount the USB drive 0.629
Then I find very few patterns in the guest's memory after 3 seconds 5.942

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

# read cache
When I mount the USB drive again 3.980
And I read the content of the test FS 0.402
Then patterns cover at least 99% of the test FS size in the guest's memory 3.402

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

When I umount the USB drive 1.265
Then I find very few patterns in the guest's memory after 3 seconds 6.058

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

After features/support/hooks.rb:330 1.370
After features/support/hooks.rb:100 0.000
53.908
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 8.573
And I prepare Tails for memory erasure tests 0.592
When I fill a 128 MiB file with a known pattern on the root filesystem 18.024
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.699
Then patterns cover at least 128 MiB in the guest's memory 3.033

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 20.970

Pattern coverage: 0.000% (0 MiB out of 885 MiB reference memory)

After features/support/hooks.rb:330 3.477
After features/support/hooks.rb:100 0.000
7:29.597
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 6:43.526
And I prepare Tails for memory erasure tests 0.432
When I fill a 128 MiB file with a known pattern on the persistent filesystem 24.388
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 21.239

Pattern coverage: 0.000% (0 MiB out of 898 MiB reference memory)

After features/support/hooks.rb:330 3.497
After features/support/hooks.rb:100 0.011