Project Number Date
test_Tails_ISO_stable 4614 11 Jan 2024, 12:31

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 14:4.032 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.
18.613
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 8.154
And I prepare Tails for memory erasure tests 0.583
When I start a process allocating 128 MiB of memory with a known pattern 1.256
Then patterns cover at least 128 MiB in the guest's memory 4.148

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

When I kill the allocating process 0.314
Then I find very few patterns in the guest's memory 4.155

Pattern coverage: 0.000% (0 MiB out of 1196 MiB reference memory)

After features/support/hooks.rb:291 0.685
After features/support/hooks.rb:75 0.000
1:1.292
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 8.504
And I prepare Tails for memory erasure tests 0.587
And I find very few patterns in the guest's memory 4.287

Pattern coverage: 0.000% (0 MiB out of 1193 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 40.243
Then patterns cover at least 99% of the test FS size in the guest's memory 3.702

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

When I umount "/mnt" 0.213
Then I find very few patterns in the guest's memory 3.753

Pattern coverage: 0.000% (0 MiB out of 1193 MiB reference memory)

After features/support/hooks.rb:291 0.822
After features/support/hooks.rb:75 0.000
2:47.001
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.369
And I prepare Tails for memory erasure tests 0.494
When I plug and mount a 128 MiB USB drive with a vfat filesystem 7.976
Then I find very few patterns in the guest's memory 3.686

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

# write cache
When I fill the USB drive with a known pattern 2:7.562
Then patterns cover at least 86% of the test FS size in the guest's memory 3.545

Pattern coverage: 96.030% (119 MiB out of 124 MiB reference memory)

When I umount the USB drive 0.767
Then I find very few patterns in the guest's memory 3.702

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

# read cache
When I mount the USB drive again 0.286
And I read the content of the test FS 2.518
Then patterns cover at least 99% of the test FS size in the guest's memory 3.398

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

When I umount the USB drive 0.416
Then I find very few patterns in the guest's memory 4.275

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

After features/support/hooks.rb:291 0.881
After features/support/hooks.rb:75 0.000
2:56.941
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 8.333
And I prepare Tails for memory erasure tests 0.505
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 25.881
Then I find very few patterns in the guest's memory 3.677

Pattern coverage: 0.000% (0 MiB out of 1207 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1:49.629
Then patterns cover at least 99% of the test FS size in the guest's memory 3.317

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

When I umount the USB drive 0.857
Then I find very few patterns in the guest's memory 4.076

Pattern coverage: 0.000% (0 MiB out of 1207 MiB reference memory)

# read cache
When I mount the USB drive again 10.077
And I read the content of the test FS 2.840
Then patterns cover at least 99% of the test FS size in the guest's memory 3.243

Pattern coverage: 108.663% (97 MiB out of 89 MiB reference memory)

When I umount the USB drive 0.488
Then I find very few patterns in the guest's memory 4.011

Pattern coverage: 0.000% (0 MiB out of 1207 MiB reference memory)

After features/support/hooks.rb:291 1.023
After features/support/hooks.rb:75 0.001
49.120
Before features/support/hooks.rb:245 0.012
Given I have started Tails from DVD without network and logged in 9.511
And I prepare Tails for memory erasure tests 0.484
When I fill a 128 MiB file with a known pattern on the root filesystem 12.292
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.200
Then patterns cover at least 128 MiB in the guest's memory 3.096

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

When I trigger shutdown 0.531
And I wait 20 seconds 20.014

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.989

Pattern coverage: 0.000% (0 MiB out of 1195 MiB reference memory)

After features/support/hooks.rb:291 3.453
After features/support/hooks.rb:75 0.000
6:11.062
Before features/support/hooks.rb:245 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 5:27.009
And I prepare Tails for memory erasure tests 0.426
When I fill a 128 MiB file with a known pattern on the persistent filesystem 20.919
When I trigger shutdown 0.397
And I wait 20 seconds 20.014

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.294

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

After features/support/hooks.rb:291 3.728
After features/support/hooks.rb:75 0.011