Re: regression 4.15-rc: kernel oops in dm-multipath

I will give that commit a try. Thanks. On 12/22/2017 05:00 PM, Bart Van Assche wrote: > On Fri, 2017-12-22 at 10:53 +0100, Christian Borntraeger wrote: >> any quick ideas? > > Hello Christian, > > Was commit afc567a4977b ("dm table: fix regression from improper > dm_dev_internal.count >

Re: [for-4.16 PATCH 0/5] block, nvme, dm: allow DM multipath to use NVMe's error handler

On Tue, Dec 19 2017 at 4:05pm -0500, Mike Snitzer wrote: > These patches enable DM multipath to work well on NVMe over Fabrics > devices. Currently that implies CONFIG_NVME_MULTIPATH is _not_ set. > > But follow-on work will be to make it so that native NVMe multipath >

Re: regression 4.15-rc: kernel oops in dm-multipath

On Fri, Dec 22 2017 at 11:00am -0500, Bart Van Assche wrote: > On Fri, 2017-12-22 at 10:53 +0100, Christian Borntraeger wrote: > > any quick ideas? > > Hello Christian, > > Was commit afc567a4977b ("dm table: fix regression from improper > dm_dev_internal.count >

Re: regression 4.15-rc: kernel oops in dm-multipath

On Fri, 2017-12-22 at 10:53 +0100, Christian Borntraeger wrote: > any quick ideas? Hello Christian, Was commit afc567a4977b ("dm table: fix regression from improper dm_dev_internal.count refcount_t conversion") included in your test kernel? Bart.

Re: [PATCH 3/3] block: Polling completion performance optimization

On 12/21/17 4:10 PM, Keith Busch wrote: > On Thu, Dec 21, 2017 at 03:17:41PM -0700, Jens Axboe wrote: >> On 12/21/17 2:34 PM, Keith Busch wrote: >>> It would be nice, but the driver doesn't know a request's completion >>> is going to be a polled. >> >> That's trivially solvable though, since the

Re: Regression with a0747a859ef6 ("bdi: add error handle for bdi_debug_register")

On Fri, Dec 22, 2017 at 21:20:10 +0800, weiping zhang wrote: 2017-12-22 12:53 GMT+08:00 Bruno Wolff III : On Thu, Dec 21, 2017 at 17:16:03 -0600, Bruno Wolff III wrote: Enforcing mode alone isn't enough as I tested that one one machine

Re: Regression with a0747a859ef6 ("bdi: add error handle for bdi_debug_register")

2017-12-22 12:53 GMT+08:00 Bruno Wolff III : > On Thu, Dec 21, 2017 at 17:16:03 -0600, > Bruno Wolff III wrote: >> >> >> Enforcing mode alone isn't enough as I tested that one one machine at home >> and it didn't trigger the problem. I'll try another machine late

regression 4.15-rc: kernel oops in dm-multipath

Since 4.15-rc1 I get the following during boot relatively often (but not 100% reproducable) Seems to be 2 oopses... "[5.851954] device-mapper: multipath service-time: version 0.3.0 loaded "[5.902244] Unable to handle kernel pointer dereference in virtual kernel address space "[