Project Number Date
test_Tails_ISO_remove-boum.org 3 10 Sep 2026, 00:00

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 7:26.042 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.
20.334
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 6.523
And I prepare Tails for memory erasure tests 0.395
When I start a process allocating 128 MiB of memory with a known pattern 2.197
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 3.236

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

When I kill the allocating process 0.242
Then I find very few patterns in the guest's memory after 5 seconds 7.738

Pattern coverage: 0.000% (0 MiB out of 1395 MiB reference memory)

After features/support/hooks.rb:339 0.862
After features/support/hooks.rb:108 0.000
31.577
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 18.059
And I prepare Tails for memory erasure tests 0.344
And I find very few patterns in the guest's memory 2.716

Pattern coverage: 0.000% (0 MiB out of 1392 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.433
Then patterns cover at least 99% of the test FS size in the guest's memory 2.778

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

When I umount "/mnt" 0.376
Then I find very few patterns in the guest's memory after 3 seconds 5.868

Pattern coverage: 0.000% (0 MiB out of 1392 MiB reference memory)

After features/support/hooks.rb:339 0.609
After features/support/hooks.rb:108 0.000
37.003
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 6.572
And I prepare Tails for memory erasure tests 0.353
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.258
Then I find very few patterns in the guest's memory 2.844

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

# write cache
When I fill the USB drive with a known pattern 2.623
Then patterns cover at least 75% of the test FS size in the guest's memory 3.091

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

When I umount the USB drive 0.663
Then I find very few patterns in the guest's memory after 3 seconds 5.728

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

# read cache
When I mount the USB drive again 0.191
And I read the content of the test FS 0.721
Then patterns cover at least 99% of the test FS size in the guest's memory 2.876

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

When I umount the USB drive 0.395
Then I find very few patterns in the guest's memory after 3 seconds 5.683

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

After features/support/hooks.rb:339 0.753
After features/support/hooks.rb:108 0.000
1:0.468
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 6.494
And I prepare Tails for memory erasure tests 0.396
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.258
Then I find very few patterns in the guest's memory 2.502

Pattern coverage: 0.000% (0 MiB out of 1405 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.159
Then patterns cover at least 99% of the test FS size in the guest's memory 2.654

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

When I umount the USB drive 0.473
Then I find very few patterns in the guest's memory after 3 seconds 5.749

Pattern coverage: 0.000% (0 MiB out of 1405 MiB reference memory)

# read cache
When I mount the USB drive again 3.733
And I read the content of the test FS 0.360
Then patterns cover at least 99% of the test FS size in the guest's memory 2.713

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

When I umount the USB drive 0.428
Then I find very few patterns in the guest's memory after 3 seconds 5.544

Pattern coverage: 0.000% (0 MiB out of 1405 MiB reference memory)

After features/support/hooks.rb:339 0.808
After features/support/hooks.rb:108 0.000
44.419
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 6.435
And I prepare Tails for memory erasure tests 0.426
When I fill a 128 MiB file with a known pattern on the root filesystem 13.034
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.487
Then patterns cover at least 128 MiB in the guest's memory 2.217

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 20.812

Pattern coverage: 0.000% (0 MiB out of 1405 MiB reference memory)

After features/support/hooks.rb:339 3.651
After features/support/hooks.rb:108 0.000
4:12.238
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 3:41.386
And I prepare Tails for memory erasure tests 0.308
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.363
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.175

Pattern coverage: 0.000% (0 MiB out of 1459 MiB reference memory)

After features/support/hooks.rb:339 3.465
After features/support/hooks.rb:108 0.009