Ubuntu
linux package

  1. Bug #1776887
  2. Comment #6

Comment 6 for bug 1776887

Revision history for this message
Alan Jenkins (aj504) wrote :

Awesome. Thanks.

I can't test suspend in a VM, and I don't have a physical Ubuntu install.

The block developers arranged a more convenient test for the underlying issue in https://github.com/osandov/blktests/

Before (i.e. linux-image-4.15.0-23-generic):

$ sudo ./check block/016
block/016 (send a signal to a process waiting on a frozen queue)
block/016 (send a signal to a process waiting on a frozen queue) [failed]
    runtime ... 8.112s
    --- tests/block/016.out 2018-06-15 10:05:09.080764871 +0100
    +++ results/nodev/block/016.out.bad 2018-06-15 10:05:27.236769759 +0100
    @@ -1,2 +1,3 @@
     Running block/016
    +dd: error reading '/dev/nullb0': Input/output error
     Test complete

After (i.e. 4.15.0-23.26~lp1776887):

$ sudo ./check block/016
block/016 (send a signal to a process waiting on a frozen queue) [passed]
    runtime 8.112s ... 10.086s
$

I don't see any problem with the patched VM, though obviously it would be nice to have someone test both normal suspend and the pm_test reproducer on a physical install.