Project Number Date
test_Tails_ISO_flatpak-whisperback 1 11 May 2026, 18:29

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 7:47.474 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.
17.846
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 6.813
And I prepare Tails for memory erasure tests 0.397
When I start a process allocating 128 MiB of memory with a known pattern 1.180
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.131

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

When I kill the allocating process 0.213
Then I find very few patterns in the guest's memory after 5 seconds 7.110

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

After features/support/hooks.rb:331 1.203
After features/support/hooks.rb:100 0.000
18.160
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 6.955
And I prepare Tails for memory erasure tests 0.377
And I find very few patterns in the guest's memory 1.726

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.662
Then patterns cover at least 99% of the test FS size in the guest's memory 2.124

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

When I umount "/mnt" 0.323
Then I find very few patterns in the guest's memory after 3 seconds 4.989

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

After features/support/hooks.rb:331 0.629
After features/support/hooks.rb:100 0.000
33.266
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 6.812
And I prepare Tails for memory erasure tests 0.388
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.323
Then I find very few patterns in the guest's memory 1.907

Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.937
Then patterns cover at least 75% of the test FS size in the guest's memory 2.361

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

When I umount the USB drive 0.720
Then I find very few patterns in the guest's memory after 3 seconds 4.944

Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)

# read cache
When I mount the USB drive again 0.180
And I read the content of the test FS 0.441
Then patterns cover at least 99% of the test FS size in the guest's memory 1.944

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

When I umount the USB drive 0.363
Then I find very few patterns in the guest's memory after 3 seconds 4.940

Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)

After features/support/hooks.rb:331 1.035
After features/support/hooks.rb:100 0.000
59.156
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 7.174
And I prepare Tails for memory erasure tests 0.350
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.433
Then I find very few patterns in the guest's memory 1.903

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

# write cache
When I fill the USB drive with a known pattern 1.414
Then patterns cover at least 99% of the test FS size in the guest's memory 2.154

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

When I umount the USB drive 0.752
Then I find very few patterns in the guest's memory after 3 seconds 4.788

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

# read cache
When I mount the USB drive again 3.770
And I read the content of the test FS 0.277
Then patterns cover at least 99% of the test FS size in the guest's memory 1.891

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

When I umount the USB drive 0.429
Then I find very few patterns in the guest's memory after 3 seconds 4.815

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

After features/support/hooks.rb:331 0.668
After features/support/hooks.rb:100 0.000
59.190
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 7.095
And I prepare Tails for memory erasure tests 0.380
When I fill a 128 MiB file with a known pattern on the root filesystem 27.107
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.035
Then patterns cover at least 128 MiB in the guest's memory 1.975

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 20.590

Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)

After features/support/hooks.rb:331 3.401
After features/support/hooks.rb:100 0.000
4:39.855
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:1.633
And I prepare Tails for memory erasure tests 0.345
When I fill a 128 MiB file with a known pattern on the persistent filesystem 16.481
When I trigger shutdown 0.019
Then I find very few patterns in the guest's memory after 20 seconds 21.375

Pattern coverage: 0.000% (0 MiB out of 1526 MiB reference memory)

After features/support/hooks.rb:331 3.949
After features/support/hooks.rb:100 0.011