Project Number Date
test_Tails_ISO_fix-tca-wrapper-gettext 3 10 Jun 2026, 22:55

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 7:42.291 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.
18.520
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails from DVD without network and logged in 6.527
And I prepare Tails for memory erasure tests 0.298
When I start a process allocating 128 MiB of memory with a known pattern 2.258
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.030

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

When I kill the allocating process 0.693
Then I find very few patterns in the guest's memory after 5 seconds 6.711

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

After features/support/hooks.rb:335 0.753
After features/support/hooks.rb:104 0.000
17.534
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails from DVD without network and logged in 6.647
And I prepare Tails for memory erasure tests 0.379
And I find very few patterns in the guest's memory 1.816

Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.546
Then patterns cover at least 99% of the test FS size in the guest's memory 2.003

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

When I umount "/mnt" 0.397
Then I find very few patterns in the guest's memory after 3 seconds 4.744

Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)

After features/support/hooks.rb:335 0.680
After features/support/hooks.rb:104 0.000
31.707
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.537
And I prepare Tails for memory erasure tests 0.290
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.105
Then I find very few patterns in the guest's memory 1.951

Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.551
Then patterns cover at least 75% of the test FS size in the guest's memory 2.092

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

When I umount the USB drive 0.781
Then I find very few patterns in the guest's memory after 3 seconds 4.772

Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)

# read cache
When I mount the USB drive again 0.152
And I read the content of the test FS 0.435
Then patterns cover at least 99% of the test FS size in the guest's memory 1.872

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

When I umount the USB drive 0.347
Then I find very few patterns in the guest's memory after 3 seconds 4.817

Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)

After features/support/hooks.rb:335 1.047
After features/support/hooks.rb:104 0.000
56.787
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails from DVD without network and logged in 6.842
And I prepare Tails for memory erasure tests 0.336
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.362
Then I find very few patterns in the guest's memory 1.675

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

# write cache
When I fill the USB drive with a known pattern 1.374
Then patterns cover at least 99% of the test FS size in the guest's memory 1.684

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

When I umount the USB drive 0.729
Then I find very few patterns in the guest's memory after 3 seconds 4.618

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

# read cache
When I mount the USB drive again 4.122
And I read the content of the test FS 0.287
Then patterns cover at least 99% of the test FS size in the guest's memory 1.746

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 4.580

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

After features/support/hooks.rb:335 1.047
After features/support/hooks.rb:104 0.000
58.681
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.592
And I prepare Tails for memory erasure tests 0.370
When I fill a 128 MiB file with a known pattern on the root filesystem 27.656
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.856
Then patterns cover at least 128 MiB in the guest's memory 1.547

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 20.652

Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)

After features/support/hooks.rb:335 3.372
After features/support/hooks.rb:104 0.000
4:39.060
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:0.038
And I prepare Tails for memory erasure tests 0.309
When I fill a 128 MiB file with a known pattern on the persistent filesystem 17.710
When I trigger shutdown 0.007
Then I find very few patterns in the guest's memory after 20 seconds 20.994

Pattern coverage: 0.000% (0 MiB out of 1506 MiB reference memory)

After features/support/hooks.rb:335 3.673
After features/support/hooks.rb:104 0.009