Project Number Date
test_Tails_ISO_21565-flatpak-safe 71 05 Oct 2026, 20:57

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 7:26.732 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.
19.873
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 6.216
And I prepare Tails for memory erasure tests 0.305
When I start a process allocating 128 MiB of memory with a known pattern 2.196
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.839

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

When I kill the allocating process 0.201
Then I find very few patterns in the guest's memory after 5 seconds 8.113

Pattern coverage: 0.000% (0 MiB out of 1402 MiB reference memory)

After features/support/hooks.rb:339 0.959
After features/support/hooks.rb:108 0.000
20.085
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 6.375
And I prepare Tails for memory erasure tests 0.338
And I find very few patterns in the guest's memory 2.633

Pattern coverage: 0.000% (0 MiB out of 1413 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.414
Then patterns cover at least 99% of the test FS size in the guest's memory 3.111

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

When I umount "/mnt" 0.387
Then I find very few patterns in the guest's memory after 3 seconds 5.825

Pattern coverage: 0.000% (0 MiB out of 1413 MiB reference memory)

After features/support/hooks.rb:339 0.710
After features/support/hooks.rb:108 0.000
36.754
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 6.412
And I prepare Tails for memory erasure tests 0.367
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.264
Then I find very few patterns in the guest's memory 2.593

Pattern coverage: 0.000% (0 MiB out of 1404 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.806
Then patterns cover at least 75% of the test FS size in the guest's memory 2.942

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

When I umount the USB drive 0.693
Then I find very few patterns in the guest's memory after 3 seconds 5.709

Pattern coverage: 0.000% (0 MiB out of 1404 MiB reference memory)

# read cache
When I mount the USB drive again 0.184
And I read the content of the test FS 0.531
Then patterns cover at least 99% of the test FS size in the guest's memory 2.924

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

When I umount the USB drive 0.434
Then I find very few patterns in the guest's memory after 3 seconds 5.888

Pattern coverage: 0.000% (0 MiB out of 1404 MiB reference memory)

After features/support/hooks.rb:339 0.987
After features/support/hooks.rb:108 0.000
1:2.278
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 6.624
And I prepare Tails for memory erasure tests 0.356
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.275
Then I find very few patterns in the guest's memory 3.430

Pattern coverage: 0.000% (0 MiB out of 1403 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.188
Then patterns cover at least 99% of the test FS size in the guest's memory 2.710

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

When I umount the USB drive 0.503
Then I find very few patterns in the guest's memory after 3 seconds 5.517

Pattern coverage: 0.000% (0 MiB out of 1403 MiB reference memory)

# read cache
When I mount the USB drive again 3.544
And I read the content of the test FS 0.347
Then patterns cover at least 99% of the test FS size in the guest's memory 2.626

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

When I umount the USB drive 0.426
Then I find very few patterns in the guest's memory after 3 seconds 5.725

Pattern coverage: 0.000% (0 MiB out of 1403 MiB reference memory)

After features/support/hooks.rb:339 1.098
After features/support/hooks.rb:108 0.000
44.310
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 6.402
And I prepare Tails for memory erasure tests 0.337
When I fill a 128 MiB file with a known pattern on the root filesystem 12.515
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.788
Then patterns cover at least 128 MiB in the guest's memory 2.486

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

When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.775

Pattern coverage: 0.000% (0 MiB out of 1406 MiB reference memory)

After features/support/hooks.rb:339 3.694
After features/support/hooks.rb:108 0.000
4:23.430
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:52.347
And I prepare Tails for memory erasure tests 0.257
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.595
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.225

Pattern coverage: 0.000% (0 MiB out of 1439 MiB reference memory)

After features/support/hooks.rb:339 3.789
After features/support/hooks.rb:108 0.011