Project Number Date
test_Tails_ISO_stable 4721 16 Mar 2024, 12:26

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 9:50.869 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.
19.245
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.867
And I prepare Tails for memory erasure tests 0.427
When I start a process allocating 128 MiB of memory with a known pattern 1.192
Then patterns cover at least 128 MiB in the guest's memory 3.881

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

When I kill the allocating process 0.994
Then I find very few patterns in the guest's memory 3.881

Pattern coverage: 0.000% (0 MiB out of 913 MiB reference memory)

After features/support/hooks.rb:291 1.168
After features/support/hooks.rb:75 0.000
23.055
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.120
And I prepare Tails for memory erasure tests 0.464
And I find very few patterns in the guest's memory 3.879

Pattern coverage: 0.000% (0 MiB out of 905 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.522
Then patterns cover at least 99% of the test FS size in the guest's memory 3.990

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

When I umount "/mnt" 0.380
Then I find very few patterns in the guest's memory 4.698

Pattern coverage: 0.000% (0 MiB out of 905 MiB reference memory)

After features/support/hooks.rb:291 1.599
After features/support/hooks.rb:75 0.000
43.417
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.021
And I prepare Tails for memory erasure tests 0.440
When I plug and mount a 128 MiB USB drive with a vfat filesystem 8.024
Then I find very few patterns in the guest's memory 4.547

Pattern coverage: 0.000% (0 MiB out of 905 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.197
Then patterns cover at least 86% of the test FS size in the guest's memory 4.678

Pattern coverage: 91.618% (116 MiB out of 127 MiB reference memory)

When I umount the USB drive 0.940
Then I find very few patterns in the guest's memory 4.576

Pattern coverage: 0.000% (0 MiB out of 905 MiB reference memory)

# read cache
When I mount the USB drive again 0.199
And I read the content of the test FS 0.580
Then patterns cover at least 99% of the test FS size in the guest's memory 4.319

Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)

When I umount the USB drive 0.534
Then I find very few patterns in the guest's memory 4.355

Pattern coverage: 0.000% (0 MiB out of 905 MiB reference memory)

After features/support/hooks.rb:291 1.522
After features/support/hooks.rb:75 0.000
59.263
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 8.042
And I prepare Tails for memory erasure tests 0.529
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 26.453
Then I find very few patterns in the guest's memory 3.630

Pattern coverage: 0.000% (0 MiB out of 910 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.837
Then patterns cover at least 99% of the test FS size in the guest's memory 2.678

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

When I umount the USB drive 0.649
Then I find very few patterns in the guest's memory 3.502

Pattern coverage: 0.000% (0 MiB out of 910 MiB reference memory)

# read cache
When I mount the USB drive again 3.524
And I read the content of the test FS 0.543
Then patterns cover at least 99% of the test FS size in the guest's memory 3.279

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

When I umount the USB drive 0.612
Then I find very few patterns in the guest's memory 3.980

Pattern coverage: 0.000% (0 MiB out of 910 MiB reference memory)

After features/support/hooks.rb:291 3.702
After features/support/hooks.rb:75 0.000
49.960
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.990
And I prepare Tails for memory erasure tests 0.467
When I fill a 128 MiB file with a known pattern on the root filesystem 14.997
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 0.978
Then patterns cover at least 128 MiB in the guest's memory 3.571

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 1.921

Pattern coverage: 0.000% (0 MiB out of 907 MiB reference memory)

After features/support/hooks.rb:291 3.526
After features/support/hooks.rb:75 0.000
6:35.925
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 5:46.821
And I prepare Tails for memory erasure tests 0.414
When I fill a 128 MiB file with a known pattern on the persistent filesystem 26.480
When I trigger shutdown 0.012
And I wait 20 seconds 20.018

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.178

Pattern coverage: 0.000% (0 MiB out of 933 MiB reference memory)

After features/support/hooks.rb:291 3.525
After features/support/hooks.rb:75 0.011