On Tue, 2018-01-09 at 11:13 -0500, Steven Rostedt wrote: > On Mon, 08 Jan 2018 17:25:15 -0800 > Todd Brandt <todd.e.bra...@linux.intel.com> wrote: > > > Can you reproduce the issue there? I just want to be sure it's not > > something local to our machines here, as long as you have CONFIG_PM > > enabled it should work the same hopefully. > > Just to let you know, I'm currently traveling, so my testing ability > is > limited at the time being.
ok, it's not an emergency, we're using a patched version of the kernel with those two commits removed in the interim. I tried running kgdb over serial console, but unfortunately it doesn't work over a USB-to- Serial dongle (even Greg K-H says it won't work, :P). This is the best output I could get, considering: # run the test script here [ 545.733458] PM: suspend entry (deep) [ 545.734535] PM: Syncing filesystems ... done. [ 546.580551] Freezing user space processes ... (elapsed 0.013 seconds) done. [ 546.594846] OOM killer disabled. [ 546.595002] Freezing remaining freezable tasks ... (elapsed 0.005 seconds) done. [ 557.808719] NMI watchdog: Watchdog detected hard LOCKUP on cpu 0 So it's definitely a hard lockup, I just can't get the stack trace without a system with a built in serial console. > > -- Steve