Project Number Date
test_Tails_ISO_devel 4264 04 Mar 2026, 09:15

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 13:31.195 Passed
Tags: @product @slow @not_release_blocker
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.
Tags: @product @slow @not_release_blocker
47.898
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 8.603
And I prepare Tails for memory erasure tests 0.474
When I start a process allocating 128 MiB of memory with a known pattern 2.290
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 15.634 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 1.344
Then I find very few patterns in the guest's memory after 5 seconds 19.550 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
After features/support/hooks.rb:331 0.987
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:0.534
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 8.276
And I prepare Tails for memory erasure tests 0.442
And I find very few patterns in the guest's memory 14.820 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.883
Then patterns cover at least 99% of the test FS size in the guest's memory 15.386 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 1.293
Then I find very few patterns in the guest's memory after 3 seconds 17.432 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
After features/support/hooks.rb:331 1.253
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:54.197
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 8.235
And I prepare Tails for memory erasure tests 0.458
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.348
Then I find very few patterns in the guest's memory 14.328 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 3.652
Then patterns cover at least 75% of the test FS size in the guest's memory 24.617 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.541
Then I find very few patterns in the guest's memory after 3 seconds 18.743 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
# read cache
When I mount the USB drive again 0.184
And I read the content of the test FS 0.653
Then patterns cover at least 99% of the test FS size in the guest's memory 15.380 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.422
Then I find very few patterns in the guest's memory after 3 seconds 19.630 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
After features/support/hooks.rb:331 0.997
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:3.695
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 8.080
And I prepare Tails for memory erasure tests 0.663
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 32.910
Then I find very few patterns in the guest's memory 13.345 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.776
Then patterns cover at least 99% of the test FS size in the guest's memory 14.782 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.614
Then I find very few patterns in the guest's memory after 3 seconds 15.881 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
# read cache
When I mount the USB drive again 4.571
And I read the content of the test FS 0.576
Then patterns cover at least 99% of the test FS size in the guest's memory 13.699 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.454
Then I find very few patterns in the guest's memory after 3 seconds 16.338 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
After features/support/hooks.rb:331 0.923
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:0.564
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 8.972
And I prepare Tails for memory erasure tests 0.673
When I fill a 128 MiB file with a known pattern on the root filesystem 11.743
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.354
Then patterns cover at least 128 MiB in the guest's memory 10.955 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 25.851 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:331 3.888
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
6:44.305
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 6:10.764
And I prepare Tails for memory erasure tests 0.368
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.209
When I trigger shutdown 0.024
Then I find very few patterns in the guest's memory after 20 seconds 23.939 
Pattern coverage: 0.000% (0 MiB out of 1525 MiB reference memory)
After features/support/hooks.rb:331 3.507
After features/support/hooks.rb:100 0.015