Project Number Date
test_Tails_ISO_7929-celluloid-flatpak 13 07 May 2026, 20:07

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 7:32.544 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.
18.711
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 6.590
And I prepare Tails for memory erasure tests 0.445
When I start a process allocating 128 MiB of memory with a known pattern 2.173
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.884

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

When I kill the allocating process 0.928
Then I find very few patterns in the guest's memory after 5 seconds 6.689

Pattern coverage: 0.000% (0 MiB out of 1469 MiB reference memory)

After features/support/hooks.rb:331 1.195
After features/support/hooks.rb:100 0.000
17.132
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 0.476
And I find very few patterns in the guest's memory 1.628

Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.658
Then patterns cover at least 99% of the test FS size in the guest's memory 1.819

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

When I umount "/mnt" 0.365
Then I find very few patterns in the guest's memory after 3 seconds 4.723

Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)

After features/support/hooks.rb:331 0.696
After features/support/hooks.rb:100 0.000
31.208
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 6.507
And I prepare Tails for memory erasure tests 0.454
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.011
Then I find very few patterns in the guest's memory 1.629

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

# write cache
When I fill the USB drive with a known pattern 2.666
Then patterns cover at least 75% of the test FS size in the guest's memory 1.877

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

When I umount the USB drive 0.761
Then I find very few patterns in the guest's memory after 3 seconds 4.645

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

# read cache
When I mount the USB drive again 0.171
And I read the content of the test FS 0.407
Then patterns cover at least 99% of the test FS size in the guest's memory 2.008

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

When I umount the USB drive 0.413
Then I find very few patterns in the guest's memory after 3 seconds 4.652

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

After features/support/hooks.rb:331 0.532
After features/support/hooks.rb:100 0.000
58.200
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 6.386
And I prepare Tails for memory erasure tests 0.499
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.539
Then I find very few patterns in the guest's memory 1.636

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

# write cache
When I fill the USB drive with a known pattern 1.451
Then patterns cover at least 99% of the test FS size in the guest's memory 1.768

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

When I umount the USB drive 0.548
Then I find very few patterns in the guest's memory after 3 seconds 4.585

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

# read cache
When I mount the USB drive again 4.715
And I read the content of the test FS 0.339
Then patterns cover at least 99% of the test FS size in the guest's memory 1.732

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

When I umount the USB drive 0.451
Then I find very few patterns in the guest's memory after 3 seconds 4.545

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

After features/support/hooks.rb:331 1.092
After features/support/hooks.rb:100 0.000
1:2.002
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 6.346
And I prepare Tails for memory erasure tests 0.365
When I fill a 128 MiB file with a known pattern on the root filesystem 31.705
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.630
Then patterns cover at least 128 MiB in the guest's memory 1.465

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

When I trigger shutdown 0.009
Then I find very few patterns in the guest's memory after 20 seconds 20.479

Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)

After features/support/hooks.rb:331 3.594
After features/support/hooks.rb:100 0.000
4:25.289
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:45.956
And I prepare Tails for memory erasure tests 0.279
When I fill a 128 MiB file with a known pattern on the persistent filesystem 18.123
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.923

Pattern coverage: 0.000% (0 MiB out of 1458 MiB reference memory)

After features/support/hooks.rb:331 3.541
After features/support/hooks.rb:100 0.008