Messages in this thread | | | Date | Fri, 23 Dec 2016 09:33:36 +1100 | From | Dave Chinner <> | Subject | Re: [4.10, panic, regression] iscsi: null pointer deref at iscsi_tcp_segment_done+0x20d/0x2e0 |
| |
On Fri, Dec 23, 2016 at 09:15:00AM +1100, Dave Chinner wrote: > On Thu, Dec 22, 2016 at 01:10:19PM -0800, Linus Torvalds wrote: > > Ok, so the numa issue was a red herring. With that fixed: > > > > On Thu, Dec 22, 2016 at 1:06 PM, Dave Chinner <david@fromorbit.com> wrote: > > > > > > Better, but still bad. average files/s is not up to 200k files/s, > > > so still a good 10-15% off where it should be. xfs_repair is back > > > down to 10-15% off where it should be, too. bulkstat still fires off > > > a bad page reference count warning, iscsi still panics immediately. > > > > Do you have CONFIG_BLK_WBT enabled, perhaps? > > Ok, yes, that's enabled. Let me go turn it off and see what happens.
Numbers are still all over the place.
FSUse% Count Size Files/sec App Overhead ..... 0 28800000 0 228175.5 21928812 0 30400000 0 167880.5 39628229 0 32000000 0 124289.5 41420925 0 33600000 0 150577.9 35382318 0 35200000 0 216535.4 16072628 0 36800000 0 233414.4 11846654 0 38400000 0 213812.0 13356633 0 40000000 0 175905.7 53012015 0 41600000 0 157028.7 34700794 0 43200000 0 138829.1 50282461
And the average is now back down to 185k files/s. repair runtime is unchanged and still 10-15% off...
I've got to run away for a few hours right now, but I'll retest the 4.9 + xfs for-next branch when I get back to see if the problem is my curent config or whether there really is a perf problem lurking somewhere....
Cheers,
Dave. -- Dave Chinner david@fromorbit.com
| |