Project Number Date
test_Tails_ISO_20898-tinyrpc-drop 12 24 Apr 2025, 00:53

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 11:21.258 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.
24.968
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 8.484
And I prepare Tails for memory erasure tests 0.401
When I start a process allocating 128 MiB of memory with a known pattern 1.200
Then patterns cover at least 128 MiB in the guest's memory 5.900

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

When I kill the allocating process 0.405
Then I find very few patterns in the guest's memory after 5 seconds 8.576

Pattern coverage: 0.000% (0 MiB out of 877 MiB reference memory)

After features/support/hooks.rb:330 0.864
After features/support/hooks.rb:100 0.000
25.710
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 8.910
And I prepare Tails for memory erasure tests 0.460
And I find very few patterns in the guest's memory 3.336

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 2.125
Then patterns cover at least 99% of the test FS size in the guest's memory 3.692

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

When I umount "/mnt" 0.466
Then I find very few patterns in the guest's memory after 3 seconds 6.718

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

After features/support/hooks.rb:330 1.383
After features/support/hooks.rb:100 0.000
48.217
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 8.345
And I prepare Tails for memory erasure tests 0.503
When I plug and mount a 128 MiB USB drive with a vfat filesystem 9.501
Then I find very few patterns in the guest's memory 3.450

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

# write cache
When I fill the USB drive with a known pattern 2.916
Then patterns cover at least 75% of the test FS size in the guest's memory 3.627

Pattern coverage: 88.545% (112 MiB out of 127 MiB reference memory)

When I umount the USB drive 0.938
Then I find very few patterns in the guest's memory after 3 seconds 6.425

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

# read cache
When I mount the USB drive again 0.245
And I read the content of the test FS 0.672
Then patterns cover at least 99% of the test FS size in the guest's memory 4.317

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

When I umount the USB drive 0.580
Then I find very few patterns in the guest's memory after 3 seconds 6.691

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

After features/support/hooks.rb:330 1.041
After features/support/hooks.rb:100 0.000
1:20.928
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 8.949
And I prepare Tails for memory erasure tests 0.678
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 36.176
Then I find very few patterns in the guest's memory 3.263

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

# write cache
When I fill the USB drive with a known pattern 1.672
Then patterns cover at least 99% of the test FS size in the guest's memory 3.539

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

When I umount the USB drive 3.170
Then I find very few patterns in the guest's memory after 3 seconds 6.259

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

# read cache
When I mount the USB drive again 5.803
And I read the content of the test FS 0.421
Then patterns cover at least 99% of the test FS size in the guest's memory 3.401

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

When I umount the USB drive 0.880
Then I find very few patterns in the guest's memory after 3 seconds 6.712

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

After features/support/hooks.rb:330 1.185
After features/support/hooks.rb:100 0.003
48.678
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.008
Given I have started Tails from DVD without network and logged in 8.666
And I prepare Tails for memory erasure tests 0.411
When I fill a 128 MiB file with a known pattern on the root filesystem 13.348
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.178
Then patterns cover at least 128 MiB in the guest's memory 3.126

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

When I trigger shutdown 0.022
Then I find very few patterns in the guest's memory after 20 seconds 20.924

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

After features/support/hooks.rb:330 3.536
After features/support/hooks.rb:100 0.000
7:32.755
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 6:48.710
And I prepare Tails for memory erasure tests 0.399
When I fill a 128 MiB file with a known pattern on the persistent filesystem 22.394
When I trigger shutdown 0.013
Then I find very few patterns in the guest's memory after 20 seconds 21.237

Pattern coverage: 0.000% (0 MiB out of 896 MiB reference memory)

After features/support/hooks.rb:330 3.530
After features/support/hooks.rb:100 0.012