Project Number Date
test_Tails_ISO_21529-test-suite-vs-secure-boot-key-expiry 9 05 May 2026, 23:11

Feature Report

Steps Scenarios Features
Feature Passed Failed Skipped Pending Undefined Total Passed Failed Total Duration Status
System memory erasure on shutdown 51 0 0 0 0 51 6 0 6 7:22.184 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.
17.223
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 6.775
And I prepare Tails for memory erasure tests 0.337
When I start a process allocating 128 MiB of memory with a known pattern 1.213
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.018

Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)

When I kill the allocating process 0.176
Then I find very few patterns in the guest's memory after 5 seconds 6.700

Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)

After features/support/hooks.rb:331 1.004
After features/support/hooks.rb:100 0.000
17.622
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.583
And I prepare Tails for memory erasure tests 0.347
And I find very few patterns in the guest's memory 1.788

Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.822
Then patterns cover at least 99% of the test FS size in the guest's memory 1.948

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

When I umount "/mnt" 0.341
Then I find very few patterns in the guest's memory after 3 seconds 4.790

Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)

After features/support/hooks.rb:331 0.673
After features/support/hooks.rb:100 0.000
32.450
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 6.650
And I prepare Tails for memory erasure tests 0.364
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.356
Then I find very few patterns in the guest's memory 1.840

Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.649
Then patterns cover at least 75% of the test FS size in the guest's memory 2.016

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

When I umount the USB drive 0.801
Then I find very few patterns in the guest's memory after 3 seconds 4.891

Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)

# read cache
When I mount the USB drive again 0.170
And I read the content of the test FS 0.375
Then patterns cover at least 99% of the test FS size in the guest's memory 2.122

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

When I umount the USB drive 0.398
Then I find very few patterns in the guest's memory after 3 seconds 4.814

Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)

After features/support/hooks.rb:331 0.920
After features/support/hooks.rb:100 0.000
55.522
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.459
And I prepare Tails for memory erasure tests 0.366
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.034
Then I find very few patterns in the guest's memory 1.651

Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.388
Then patterns cover at least 99% of the test FS size in the guest's memory 1.773

Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)

When I umount the USB drive 0.555
Then I find very few patterns in the guest's memory after 3 seconds 4.541

Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)

# read cache
When I mount the USB drive again 3.582
And I read the content of the test FS 0.256
Then patterns cover at least 99% of the test FS size in the guest's memory 1.783

Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)

When I umount the USB drive 0.492
Then I find very few patterns in the guest's memory after 3 seconds 4.636

Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)

After features/support/hooks.rb:331 0.772
After features/support/hooks.rb:100 0.000
55.742
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.488
And I prepare Tails for memory erasure tests 0.329
When I fill a 128 MiB file with a known pattern on the root filesystem 24.516
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.148
Then patterns cover at least 128 MiB in the guest's memory 1.665

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

When I trigger shutdown 0.008
Then I find very few patterns in the guest's memory after 20 seconds 20.584

Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)

After features/support/hooks.rb:331 3.826
After features/support/hooks.rb:100 0.000
4:23.622
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:42.323
And I prepare Tails for memory erasure tests 0.333
When I fill a 128 MiB file with a known pattern on the persistent filesystem 19.966
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.993

Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)

After features/support/hooks.rb:331 3.573
After features/support/hooks.rb:100 0.010