Project Number Date
test_Tails_ISO_stable 4602 05 Jan 2024, 12:15

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 13:53.651 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.
18.482
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 8.166
And I prepare Tails for memory erasure tests 0.577
When I start a process allocating 128 MiB of memory with a known pattern 2.340
Then patterns cover at least 128 MiB in the guest's memory 3.134

Pattern coverage: 100.100% (128 MiB out of 128 MiB reference memory)

When I kill the allocating process 0.253
Then I find very few patterns in the guest's memory 4.010

Pattern coverage: 0.000% (0 MiB out of 1198 MiB reference memory)

After features/support/hooks.rb:291 0.782
After features/support/hooks.rb:75 0.000
58.794
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 8.772
And I prepare Tails for memory erasure tests 0.504
And I find very few patterns in the guest's memory 3.790

Pattern coverage: 0.000% (0 MiB out of 1185 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 38.730
Then patterns cover at least 99% of the test FS size in the guest's memory 2.870

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

When I umount "/mnt" 0.336
Then I find very few patterns in the guest's memory 3.790

Pattern coverage: 0.000% (0 MiB out of 1185 MiB reference memory)

After features/support/hooks.rb:291 0.914
After features/support/hooks.rb:75 0.000
3:6.812
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.092
And I prepare Tails for memory erasure tests 0.581
When I plug and mount a 128 MiB USB drive with a vfat filesystem 7.897
Then I find very few patterns in the guest's memory 3.792

Pattern coverage: 0.000% (0 MiB out of 1192 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2:29.502
Then patterns cover at least 86% of the test FS size in the guest's memory 3.124

Pattern coverage: 102.400% (127 MiB out of 124 MiB reference memory)

When I umount the USB drive 0.818
Then I find very few patterns in the guest's memory 4.012

Pattern coverage: 0.000% (0 MiB out of 1192 MiB reference memory)

# read cache
When I mount the USB drive again 0.272
And I read the content of the test FS 0.714
Then patterns cover at least 99% of the test FS size in the guest's memory 3.054

Pattern coverage: 102.400% (127 MiB out of 124 MiB reference memory)

When I umount the USB drive 1.259
Then I find very few patterns in the guest's memory 3.690

Pattern coverage: 0.000% (0 MiB out of 1192 MiB reference memory)

After features/support/hooks.rb:291 1.010
After features/support/hooks.rb:75 0.000
2:22.895
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.884
And I prepare Tails for memory erasure tests 0.506
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 22.210
Then I find very few patterns in the guest's memory 3.052

Pattern coverage: 0.000% (0 MiB out of 1214 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1:27.293
Then patterns cover at least 99% of the test FS size in the guest's memory 3.729

Pattern coverage: 108.660% (97 MiB out of 89 MiB reference memory)

When I umount the USB drive 1.072
Then I find very few patterns in the guest's memory 4.448

Pattern coverage: 0.000% (0 MiB out of 1214 MiB reference memory)

# read cache
When I mount the USB drive again 3.933
And I read the content of the test FS 1.102
Then patterns cover at least 99% of the test FS size in the guest's memory 2.780

Pattern coverage: 108.662% (97 MiB out of 89 MiB reference memory)

When I umount the USB drive 0.495
Then I find very few patterns in the guest's memory 3.384

Pattern coverage: 0.000% (0 MiB out of 1214 MiB reference memory)

After features/support/hooks.rb:291 0.792
After features/support/hooks.rb:75 0.000
47.390
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 8.379
And I prepare Tails for memory erasure tests 0.506
When I fill a 128 MiB file with a known pattern on the root filesystem 12.210
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.188
Then patterns cover at least 128 MiB in the guest's memory 2.643

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

When I trigger shutdown 0.586
And I wait 20 seconds 20.016

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.859

Pattern coverage: 0.000% (0 MiB out of 1179 MiB reference memory)

After features/support/hooks.rb:291 3.480
After features/support/hooks.rb:75 0.000
6:19.275
Before features/support/hooks.rb:245 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 5:33.114
And I prepare Tails for memory erasure tests 0.512
When I fill a 128 MiB file with a known pattern on the persistent filesystem 23.022
When I trigger shutdown 0.471
And I wait 20 seconds 20.009

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.145

Pattern coverage: 0.000% (0 MiB out of 1165 MiB reference memory)

After features/support/hooks.rb:291 3.523
After features/support/hooks.rb:75 0.013