Project Number Date
test_Tails_ISO_21565-flatpak-safe 88 14 Oct 2026, 03:25

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 7:25.691 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.
22.544
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 6.311
And I prepare Tails for memory erasure tests 0.257
When I start a process allocating 128 MiB of memory with a known pattern 2.208
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 3.741

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

When I kill the allocating process 0.191
Then I find very few patterns in the guest's memory after 5 seconds 9.834

Pattern coverage: 0.000% (0 MiB out of 1418 MiB reference memory)

After features/support/hooks.rb:339 0.664
After features/support/hooks.rb:108 0.000
25.367
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 6.244
And I prepare Tails for memory erasure tests 0.278
And I find very few patterns in the guest's memory 4.991

Pattern coverage: 0.000% (0 MiB out of 1417 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.487
Then patterns cover at least 99% of the test FS size in the guest's memory 5.213

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

When I umount "/mnt" 0.450
Then I find very few patterns in the guest's memory after 3 seconds 6.700

Pattern coverage: 0.000% (0 MiB out of 1417 MiB reference memory)

After features/support/hooks.rb:339 0.773
After features/support/hooks.rb:108 0.000
36.962
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 6.198
And I prepare Tails for memory erasure tests 0.268
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.388
Then I find very few patterns in the guest's memory 3.007

Pattern coverage: 0.000% (0 MiB out of 1407 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.541
Then patterns cover at least 75% of the test FS size in the guest's memory 3.316

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

When I umount the USB drive 0.718
Then I find very few patterns in the guest's memory after 3 seconds 5.810

Pattern coverage: 0.000% (0 MiB out of 1407 MiB reference memory)

# read cache
When I mount the USB drive again 0.154
And I read the content of the test FS 0.625
Then patterns cover at least 99% of the test FS size in the guest's memory 2.847

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

When I umount the USB drive 0.408
Then I find very few patterns in the guest's memory after 3 seconds 5.676

Pattern coverage: 0.000% (0 MiB out of 1407 MiB reference memory)

After features/support/hooks.rb:339 0.738
After features/support/hooks.rb:108 0.000
1:0.212
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 6.149
And I prepare Tails for memory erasure tests 0.263
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.452
Then I find very few patterns in the guest's memory 2.557

Pattern coverage: 0.000% (0 MiB out of 1408 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.126
Then patterns cover at least 99% of the test FS size in the guest's memory 2.638

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

When I umount the USB drive 0.480
Then I find very few patterns in the guest's memory after 3 seconds 5.546

Pattern coverage: 0.000% (0 MiB out of 1408 MiB reference memory)

# read cache
When I mount the USB drive again 4.028
And I read the content of the test FS 0.357
Then patterns cover at least 99% of the test FS size in the guest's memory 2.709

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

When I umount the USB drive 0.417
Then I find very few patterns in the guest's memory after 3 seconds 5.484

Pattern coverage: 0.000% (0 MiB out of 1408 MiB reference memory)

After features/support/hooks.rb:339 1.012
After features/support/hooks.rb:108 0.000
43.791
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 6.124
And I prepare Tails for memory erasure tests 0.252
When I fill a 128 MiB file with a known pattern on the root filesystem 12.903
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.621
Then patterns cover at least 128 MiB in the guest's memory 2.131

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 20.753

Pattern coverage: 0.000% (0 MiB out of 1415 MiB reference memory)

After features/support/hooks.rb:339 3.758
After features/support/hooks.rb:108 0.000
4:16.812
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 3:46.102
And I prepare Tails for memory erasure tests 0.298
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.414
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.991

Pattern coverage: 0.000% (0 MiB out of 1445 MiB reference memory)

After features/support/hooks.rb:339 3.382
After features/support/hooks.rb:108 0.008