Project Number Date
test_Tails_ISO_21195-dont-include-unused-firmware 2 25 Jul 2026, 02:35

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 7:28.259 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.
18.675
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.667
And I prepare Tails for memory erasure tests 0.308
When I start a process allocating 128 MiB of memory with a known pattern 2.209
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.772

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

When I kill the allocating process 0.882
Then I find very few patterns in the guest's memory after 5 seconds 6.835

Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)

After features/support/hooks.rb:339 1.069
After features/support/hooks.rb:108 0.000
17.088
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.662
And I prepare Tails for memory erasure tests 0.315
And I find very few patterns in the guest's memory 1.703

Pattern coverage: 0.000% (0 MiB out of 1467 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.498
Then patterns cover at least 99% of the test FS size in the guest's memory 1.845

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

When I umount "/mnt" 0.352
Then I find very few patterns in the guest's memory after 3 seconds 4.710

Pattern coverage: 0.000% (0 MiB out of 1467 MiB reference memory)

After features/support/hooks.rb:339 0.815
After features/support/hooks.rb:108 0.000
30.901
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.010
Given I have started Tails from DVD without network and logged in 6.543
And I prepare Tails for memory erasure tests 0.314
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.084
Then I find very few patterns in the guest's memory 1.699

Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.498
Then patterns cover at least 75% of the test FS size in the guest's memory 1.981

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

When I umount the USB drive 0.733
Then I find very few patterns in the guest's memory after 3 seconds 4.732

Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)

# read cache
When I mount the USB drive again 0.143
And I read the content of the test FS 0.380
Then patterns cover at least 99% of the test FS size in the guest's memory 1.823

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

When I umount the USB drive 0.371
Then I find very few patterns in the guest's memory after 3 seconds 4.595

Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)

After features/support/hooks.rb:339 0.869
After features/support/hooks.rb:108 0.000
58.142
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.471
And I prepare Tails for memory erasure tests 0.332
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.981
Then I find very few patterns in the guest's memory 1.607

Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.178
Then patterns cover at least 99% of the test FS size in the guest's memory 1.748

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

When I umount the USB drive 0.521
Then I find very few patterns in the guest's memory after 3 seconds 4.703

Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)

# read cache
When I mount the USB drive again 4.532
And I read the content of the test FS 0.246
Then patterns cover at least 99% of the test FS size in the guest's memory 1.838

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

When I umount the USB drive 0.364
Then I find very few patterns in the guest's memory after 3 seconds 4.618

Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)

After features/support/hooks.rb:339 0.600
After features/support/hooks.rb:108 0.000
1:0.098
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.443
And I prepare Tails for memory erasure tests 0.349
When I fill a 128 MiB file with a known pattern on the root filesystem 29.703
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.618
Then patterns cover at least 128 MiB in the guest's memory 1.485

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

When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.490

Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)

After features/support/hooks.rb:339 3.483
After features/support/hooks.rb:108 0.000
4:23.353
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:35.892
And I prepare Tails for memory erasure tests 0.346
When I fill a 128 MiB file with a known pattern on the persistent filesystem 26.191
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.919

Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)

After features/support/hooks.rb:339 3.892
After features/support/hooks.rb:108 0.010