Project Number Date
test_Tails_ISO_stable 4872 04 Jun 2024, 20:39

Feature Report

Steps Scenarios Features
Feature Passed Failed Skipped Pending Undefined Total Passed Failed Total Duration Status
System memory erasure on shutdown 53 0 0 0 0 53 6 0 6 11:53.812 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.
22.787
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.286
And I prepare Tails for memory erasure tests 0.534
When I start a process allocating 128 MiB of memory with a known pattern 2.400
Then patterns cover at least 128 MiB in the guest's memory 4.032

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

When I kill the allocating process 3.418
Then I find very few patterns in the guest's memory 4.114

Pattern coverage: 0.000% (0 MiB out of 888 MiB reference memory)

After features/support/hooks.rb:315 1.230
After features/support/hooks.rb:100 0.000
25.091
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.817
And I prepare Tails for memory erasure tests 0.529
And I find very few patterns in the guest's memory 5.133

Pattern coverage: 0.000% (0 MiB out of 888 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.026
Then patterns cover at least 99% of the test FS size in the guest's memory 3.503

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

When I umount "/mnt" 1.472
Then I find very few patterns in the guest's memory 3.609

Pattern coverage: 0.000% (0 MiB out of 888 MiB reference memory)

After features/support/hooks.rb:315 1.527
After features/support/hooks.rb:100 0.000
50.464
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.771
And I prepare Tails for memory erasure tests 0.563
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.440
Then I find very few patterns in the guest's memory 3.993

Pattern coverage: 0.000% (0 MiB out of 890 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.772
Then patterns cover at least 86% of the test FS size in the guest's memory 3.159

Pattern coverage: 89.790% (114 MiB out of 127 MiB reference memory)

When I umount the USB drive 6.463
Then I find very few patterns in the guest's memory 4.053

Pattern coverage: 0.000% (0 MiB out of 890 MiB reference memory)

# read cache
When I mount the USB drive again 0.281
And I read the content of the test FS 0.635
Then patterns cover at least 99% of the test FS size in the guest's memory 4.268

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

When I umount the USB drive 0.694
Then I find very few patterns in the guest's memory 4.364

Pattern coverage: 0.000% (0 MiB out of 890 MiB reference memory)

After features/support/hooks.rb:315 1.461
After features/support/hooks.rb:100 0.000
1:19.518
Before features/support/hooks.rb:269 0.004
Given I have started Tails from DVD without network and logged in 9.058
And I prepare Tails for memory erasure tests 0.694
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 38.686
Then I find very few patterns in the guest's memory 4.105

Pattern coverage: 0.000% (0 MiB out of 892 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 4.555
Then patterns cover at least 99% of the test FS size in the guest's memory 3.242

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

When I umount the USB drive 2.642
Then I find very few patterns in the guest's memory 3.761

Pattern coverage: 0.000% (0 MiB out of 892 MiB reference memory)

# read cache
When I mount the USB drive again 4.962
And I read the content of the test FS 0.435
Then patterns cover at least 99% of the test FS size in the guest's memory 2.948

Pattern coverage: 106.117% (97 MiB out of 91 MiB reference memory)

When I umount the USB drive 0.708
Then I find very few patterns in the guest's memory 3.716

Pattern coverage: 0.000% (0 MiB out of 892 MiB reference memory)

After features/support/hooks.rb:315 0.888
After features/support/hooks.rb:100 0.000
54.206
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.280
And I prepare Tails for memory erasure tests 0.493
When I fill a 128 MiB file with a known pattern on the root filesystem 18.525
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.927
Then patterns cover at least 128 MiB in the guest's memory 3.016

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

When I trigger shutdown 0.016
And I wait 20 seconds 20.013

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.932

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

After features/support/hooks.rb:315 3.561
After features/support/hooks.rb:100 0.000
8:1.743
Before features/support/hooks.rb:269 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 7:14.758
And I prepare Tails for memory erasure tests 0.404
When I fill a 128 MiB file with a known pattern on the persistent filesystem 24.084
When I trigger shutdown 0.015
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.460

Pattern coverage: 0.000% (0 MiB out of 897 MiB reference memory)

After features/support/hooks.rb:315 3.598
After features/support/hooks.rb:100 0.014