Project Number Date
test_Tails_ISO_stable 4798 18 Apr 2024, 21:18

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 10:26.715 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.
18.460
Before features/support/hooks.rb:259 0.002
Given I have started Tails from DVD without network and logged in 8.238
And I prepare Tails for memory erasure tests 0.455
When I start a process allocating 128 MiB of memory with a known pattern 1.333
Then patterns cover at least 128 MiB in the guest's memory 3.711

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

When I kill the allocating process 0.672
Then I find very few patterns in the guest's memory 4.049

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

After features/support/hooks.rb:305 0.836
After features/support/hooks.rb:89 0.000
24.633
Before features/support/hooks.rb:259 0.003
Given I have started Tails from DVD without network and logged in 8.357
And I prepare Tails for memory erasure tests 0.426
And I find very few patterns in the guest's memory 4.232

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.745
Then patterns cover at least 99% of the test FS size in the guest's memory 4.256

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

When I umount "/mnt" 0.443
Then I find very few patterns in the guest's memory 5.170

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

After features/support/hooks.rb:305 1.322
After features/support/hooks.rb:89 0.000
43.815
Before features/support/hooks.rb:259 0.003
Given I have started Tails from DVD without network and logged in 8.840
And I prepare Tails for memory erasure tests 0.433
When I plug and mount a 128 MiB USB drive with a vfat filesystem 8.929
Then I find very few patterns in the guest's memory 4.531

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

# write cache
When I fill the USB drive with a known pattern 2.132
Then patterns cover at least 86% of the test FS size in the guest's memory 4.376

Pattern coverage: 89.187% (113 MiB out of 127 MiB reference memory)

When I umount the USB drive 0.918
Then I find very few patterns in the guest's memory 4.206

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

# read cache
When I mount the USB drive again 0.263
And I read the content of the test FS 0.394
Then patterns cover at least 99% of the test FS size in the guest's memory 4.044

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

When I umount the USB drive 0.298
Then I find very few patterns in the guest's memory 4.447

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

After features/support/hooks.rb:305 2.101
After features/support/hooks.rb:89 0.000
1:3.623
Before features/support/hooks.rb:259 0.002
Given I have started Tails from DVD without network and logged in 8.083
And I prepare Tails for memory erasure tests 0.400
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 31.252
Then I find very few patterns in the guest's memory 3.638

Pattern coverage: 0.000% (0 MiB out of 882 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.610
Then patterns cover at least 99% of the test FS size in the guest's memory 2.923

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

When I umount the USB drive 0.611
Then I find very few patterns in the guest's memory 3.420

Pattern coverage: 0.000% (0 MiB out of 882 MiB reference memory)

# read cache
When I mount the USB drive again 3.512
And I read the content of the test FS 0.365
Then patterns cover at least 99% of the test FS size in the guest's memory 3.327

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

When I umount the USB drive 0.511
Then I find very few patterns in the guest's memory 3.966

Pattern coverage: 0.000% (0 MiB out of 882 MiB reference memory)

After features/support/hooks.rb:305 0.753
After features/support/hooks.rb:89 0.000
52.780
Before features/support/hooks.rb:259 0.002
Given I have started Tails from DVD without network and logged in 8.016
And I prepare Tails for memory erasure tests 0.391
When I fill a 128 MiB file with a known pattern on the root filesystem 16.135
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 3.710
Then patterns cover at least 128 MiB in the guest's memory 2.768

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

When I trigger shutdown 0.013
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.725

Pattern coverage: 0.000% (0 MiB out of 900 MiB reference memory)

After features/support/hooks.rb:305 3.560
After features/support/hooks.rb:89 0.000
7:3.401
Before features/support/hooks.rb:259 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:17.831
And I prepare Tails for memory erasure tests 0.433
When I fill a 128 MiB file with a known pattern on the persistent filesystem 22.959
When I trigger shutdown 0.010
And I wait 20 seconds 20.016

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.150

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

After features/support/hooks.rb:305 3.528
After features/support/hooks.rb:89 0.009