Re: [OpenZFS Developer] zfs zio reordering in zio_vdev_io_start causing panics

2014-05-07 Thread Steven Hartland
- Original Message - From: George Wilson george.wil...@delphix.com To: Steven Hartland kill...@multiplay.co.uk; developer@open-zfs.org Sent: Wednesday, May 07, 2014 3:07 PM Subject: Re: [OpenZFS Developer] zfs zio reordering in zio_vdev_io_start causing panics On 5/7/14, 4:44 AM,

Re: [OpenZFS Developer] zfs zio reordering in zio_vdev_io_start causing panics

2014-05-07 Thread George Wilson
On 5/7/14, 10:55 AM, Steven Hartland wrote: - Original Message - From: George Wilson george.wil...@delphix.com To: Steven Hartland kill...@multiplay.co.uk; developer@open-zfs.org Sent: Wednesday, May 07, 2014 3:07 PM Subject: Re: [OpenZFS Developer] zfs zio reordering in

Re: [OpenZFS Developer] zfs zio reordering in zio_vdev_io_start causing panics

2014-05-07 Thread Steven Hartland
- Original Message - From: George Wilson george.wil...@delphix.com There are a couple of cases where it can work but I'm going to make it such that requires you to always return back ZIO_PIPELINE_STOP. Otherwise it's makes it too easy to introduce a programming error. For example,

Re: [OpenZFS Developer] zfs zio reordering in zio_vdev_io_start causing panics

2014-05-07 Thread George Wilson
On 5/7/14, 11:46 AM, Steven Hartland wrote: - Original Message - From: George Wilson george.wil...@delphix.com There are a couple of cases where it can work but I'm going to make it such that requires you to always return back ZIO_PIPELINE_STOP. Otherwise it's makes it too easy to

Re: [OpenZFS Developer] zfs zio reordering in zio_vdev_io_start causing panics

2014-05-07 Thread Steven Hartland
- Original Message - From: George Wilson george.wil...@delphix.com On 5/7/14, 11:46 AM, Steven Hartland wrote: - Original Message - From: George Wilson george.wil...@delphix.com There are a couple of cases where it can work but I'm going to make it such that requires you

Re: [OpenZFS Developer] zfs zio reordering in zio_vdev_io_start causing panics

2014-05-07 Thread George Wilson
On 5/7/14, 12:50 PM, Steven Hartland wrote: - Original Message - From: George Wilson george.wil...@delphix.com On 5/7/14, 11:46 AM, Steven Hartland wrote: - Original Message - From: George Wilson george.wil...@delphix.com There are a couple of cases where it can work but

Re: [OpenZFS Developer] zfs zio reordering in zio_vdev_io_start causing panics

2014-05-07 Thread Steven Hartland
- Original Message - From: George Wilson george.wil...@delphix.com On 5/7/14, 11:46 AM, Steven Hartland wrote: - Original Message - From: George Wilson george.wil...@delphix.com There are a couple of cases where it can work but I'm going to make it such that requires you to