From: Dave Chinner <david@fromorbit.com> To: Dan Williams <dan.j.williams@intel.com> Cc: Mike Snitzer <snitzer@redhat.com>, linux-nvdimm <linux-nvdimm@lists.01.org>, "Darrick J. Wong" <darrick.wong@oracle.com>, Linux Kernel Mailing List <linux-kernel@vger.kernel.org>, linux-xfs <linux-xfs@vger.kernel.org>, device-mapper development <dm-devel@redhat.com>, linux-fsdevel <linux-fsdevel@vger.kernel.org> Subject: Re: [PATCH v2 2/7] dax: change bdev_dax_supported() to support boolean returns Date: Mon, 4 Jun 2018 08:20:38 +1000 [thread overview] Message-ID: <20180603222038.GS10363@dastard> (raw) In-Reply-To: <CAPcyv4iXTsxmQgjoLs2E_8QrLHrFOV_58T7UYf0zPJuB2744qQ@mail.gmail.com> On Thu, May 31, 2018 at 09:02:52PM -0700, Dan Williams wrote: > On Thu, May 31, 2018 at 7:24 PM, Dave Chinner <david@fromorbit.com> wrote: > > On Thu, May 31, 2018 at 06:57:33PM -0700, Dan Williams wrote: > >> > FWIW, XFS+DAX used to just work on this setup (I hadn't even > >> > installed ndctl until this morning!) but after changing the kernel > >> > it no longer works. That would make it a regression, yes? [....] > >> I suspect your kernel does not have CONFIG_ZONE_DEVICE enabled which > >> has the following dependencies: > >> > >> depends on MEMORY_HOTPLUG > >> depends on MEMORY_HOTREMOVE > >> depends on SPARSEMEM_VMEMMAP > > > > Filesystem DAX now has a dependency on memory hotplug? [....] > > OK, works now I've found the magic config incantantions to turn > > everything I now need on. By enabling these options, my test VM now has a ~30s pause in the boot very soon after the nvdimm subsystem is initialised. [ 1.523718] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 1.550353] 00:05: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A [ 1.552175] Non-volatile memory driver v1.3 [ 2.332045] tsc: Refined TSC clocksource calibration: 2199.909 MHz [ 2.333280] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x1fb5dcd4620, max_idle_ns: 440795264143 ns [ 37.217453] brd: module loaded [ 37.225423] loop: module loaded [ 37.228441] virtio_blk virtio2: [vda] 10485760 512-byte logical blocks (5.37 GB/5.00 GiB) [ 37.245418] virtio_blk virtio3: [vdb] 146800640 512-byte logical blocks (75.2 GB/70.0 GiB) [ 37.255794] virtio_blk virtio4: [vdc] 1073741824000 512-byte logical blocks (550 TB/500 TiB) [ 37.265403] nd_pmem namespace1.0: unable to guarantee persistence of writes [ 37.265618] nd_pmem namespace0.0: unable to guarantee persistence of writes The system does not appear to be consuming CPU, but it is blocking NMIs so I can't get a CPU trace. For a VM that I rely on booting in a few seconds because I reboot it tens of times a day, this is a problem.... Cheers, Dave. -- Dave Chinner david@fromorbit.com _______________________________________________ Linux-nvdimm mailing list Linux-nvdimm@lists.01.org https://lists.01.org/mailman/listinfo/linux-nvdimm
WARNING: multiple messages have this Message-ID (diff)
From: Dave Chinner <david@fromorbit.com> To: Dan Williams <dan.j.williams@intel.com> Cc: "Darrick J. Wong" <darrick.wong@oracle.com>, Mike Snitzer <snitzer@redhat.com>, linux-nvdimm <linux-nvdimm@lists.01.org>, Linux Kernel Mailing List <linux-kernel@vger.kernel.org>, linux-xfs <linux-xfs@vger.kernel.org>, device-mapper development <dm-devel@redhat.com>, linux-fsdevel <linux-fsdevel@vger.kernel.org> Subject: Re: [PATCH v2 2/7] dax: change bdev_dax_supported() to support boolean returns Date: Mon, 4 Jun 2018 08:20:38 +1000 [thread overview] Message-ID: <20180603222038.GS10363@dastard> (raw) In-Reply-To: <CAPcyv4iXTsxmQgjoLs2E_8QrLHrFOV_58T7UYf0zPJuB2744qQ@mail.gmail.com> On Thu, May 31, 2018 at 09:02:52PM -0700, Dan Williams wrote: > On Thu, May 31, 2018 at 7:24 PM, Dave Chinner <david@fromorbit.com> wrote: > > On Thu, May 31, 2018 at 06:57:33PM -0700, Dan Williams wrote: > >> > FWIW, XFS+DAX used to just work on this setup (I hadn't even > >> > installed ndctl until this morning!) but after changing the kernel > >> > it no longer works. That would make it a regression, yes? [....] > >> I suspect your kernel does not have CONFIG_ZONE_DEVICE enabled which > >> has the following dependencies: > >> > >> depends on MEMORY_HOTPLUG > >> depends on MEMORY_HOTREMOVE > >> depends on SPARSEMEM_VMEMMAP > > > > Filesystem DAX now has a dependency on memory hotplug? [....] > > OK, works now I've found the magic config incantantions to turn > > everything I now need on. By enabling these options, my test VM now has a ~30s pause in the boot very soon after the nvdimm subsystem is initialised. [ 1.523718] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 1.550353] 00:05: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A [ 1.552175] Non-volatile memory driver v1.3 [ 2.332045] tsc: Refined TSC clocksource calibration: 2199.909 MHz [ 2.333280] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x1fb5dcd4620, max_idle_ns: 440795264143 ns [ 37.217453] brd: module loaded [ 37.225423] loop: module loaded [ 37.228441] virtio_blk virtio2: [vda] 10485760 512-byte logical blocks (5.37 GB/5.00 GiB) [ 37.245418] virtio_blk virtio3: [vdb] 146800640 512-byte logical blocks (75.2 GB/70.0 GiB) [ 37.255794] virtio_blk virtio4: [vdc] 1073741824000 512-byte logical blocks (550 TB/500 TiB) [ 37.265403] nd_pmem namespace1.0: unable to guarantee persistence of writes [ 37.265618] nd_pmem namespace0.0: unable to guarantee persistence of writes The system does not appear to be consuming CPU, but it is blocking NMIs so I can't get a CPU trace. For a VM that I rely on booting in a few seconds because I reboot it tens of times a day, this is a problem.... Cheers, Dave. -- Dave Chinner david@fromorbit.com
next prev parent reply other threads:[~2018-06-03 22:20 UTC|newest] Thread overview: 119+ messages / expand[flat|nested] mbox.gz Atom feed top 2018-05-29 19:50 [PATCH v2 0/7] Fix DM DAX handling Ross Zwisler 2018-05-29 19:50 ` Ross Zwisler 2018-05-29 19:50 ` Ross Zwisler 2018-05-29 19:51 ` [PATCH v2 1/7] fs: allow per-device dax status checking for filesystems Ross Zwisler 2018-05-29 19:51 ` Ross Zwisler 2018-05-29 19:51 ` Ross Zwisler 2018-05-29 19:51 ` [PATCH v2 2/7] dax: change bdev_dax_supported() to support boolean returns Ross Zwisler 2018-05-29 19:51 ` Ross Zwisler 2018-05-29 19:51 ` Ross Zwisler 2018-05-29 21:25 ` Darrick J. Wong 2018-05-29 21:25 ` Darrick J. Wong 2018-05-29 21:25 ` Darrick J. Wong 2018-05-29 22:01 ` Ross Zwisler 2018-05-29 22:01 ` Ross Zwisler 2018-05-31 19:13 ` Darrick J. Wong 2018-05-31 19:13 ` Darrick J. Wong 2018-05-31 19:13 ` Darrick J. Wong 2018-05-31 20:34 ` Ross Zwisler 2018-05-31 20:34 ` Ross Zwisler 2018-05-31 20:34 ` Ross Zwisler 2018-05-31 20:35 ` Dan Williams 2018-05-31 20:35 ` Dan Williams 2018-05-31 20:35 ` Dan Williams 2018-05-31 20:41 ` Ross Zwisler 2018-05-31 20:41 ` Ross Zwisler 2018-05-31 20:41 ` Ross Zwisler 2018-05-31 20:52 ` Mike Snitzer 2018-05-31 20:52 ` Mike Snitzer 2018-05-31 20:52 ` Mike Snitzer 2018-05-31 22:26 ` [dm-devel] " Darrick J. Wong 2018-05-31 22:26 ` Darrick J. Wong 2018-05-31 22:26 ` Darrick J. Wong 2018-06-01 20:59 ` Ross Zwisler 2018-06-01 20:59 ` Ross Zwisler 2018-06-01 20:59 ` Ross Zwisler 2018-06-01 1:26 ` Dave Chinner 2018-06-01 1:26 ` Dave Chinner 2018-06-01 1:57 ` Dan Williams 2018-06-01 1:57 ` Dan Williams 2018-06-01 2:24 ` Dave Chinner 2018-06-01 2:24 ` Dave Chinner 2018-06-01 2:24 ` Dave Chinner 2018-06-01 4:02 ` Dan Williams 2018-06-01 4:02 ` Dan Williams 2018-06-01 4:02 ` Dan Williams 2018-06-03 22:20 ` Dave Chinner [this message] 2018-06-03 22:20 ` Dave Chinner 2018-06-04 0:25 ` Dave Chinner 2018-06-04 0:25 ` Dave Chinner 2018-06-04 0:25 ` Dave Chinner 2018-06-04 1:48 ` Dan Williams 2018-06-04 1:48 ` Dan Williams 2018-06-04 1:48 ` Dan Williams 2018-06-04 23:40 ` Dan Williams 2018-06-04 23:40 ` Dan Williams 2018-06-04 23:40 ` Dan Williams 2018-06-05 0:33 ` Mike Snitzer 2018-06-05 0:33 ` Mike Snitzer 2018-06-05 0:33 ` Mike Snitzer 2018-06-05 5:55 ` Dave Chinner 2018-06-05 5:55 ` Dave Chinner 2018-06-05 5:55 ` Dave Chinner 2018-06-05 3:32 ` Dan Williams 2018-06-05 3:32 ` Dan Williams 2018-05-29 19:51 ` [PATCH v2 3/7] dm: fix test for DAX device support Ross Zwisler 2018-05-29 19:51 ` Ross Zwisler 2018-05-29 19:51 ` Ross Zwisler 2018-06-01 20:19 ` Mike Snitzer 2018-06-01 20:19 ` Mike Snitzer 2018-06-01 20:19 ` Mike Snitzer 2018-06-01 20:46 ` Mike Snitzer 2018-06-01 20:46 ` Mike Snitzer 2018-06-01 20:46 ` Mike Snitzer 2018-06-01 21:11 ` Ross Zwisler 2018-06-01 21:11 ` Ross Zwisler 2018-06-01 21:11 ` Ross Zwisler 2018-06-01 21:16 ` Dan Williams 2018-06-01 21:16 ` Dan Williams 2018-06-01 21:16 ` Dan Williams 2018-05-29 19:51 ` [PATCH v2 4/7] dm: prevent DAX mounts if not supported Ross Zwisler 2018-05-29 19:51 ` Ross Zwisler 2018-05-29 19:51 ` Ross Zwisler 2018-06-01 21:55 ` Mike Snitzer 2018-06-01 21:55 ` Mike Snitzer 2018-06-01 21:55 ` Mike Snitzer 2018-06-04 23:15 ` Ross Zwisler 2018-06-04 23:15 ` Ross Zwisler 2018-06-04 23:15 ` Ross Zwisler 2018-06-20 15:17 ` Mike Snitzer 2018-06-20 15:17 ` Mike Snitzer 2018-06-25 19:20 ` Ross Zwisler 2018-06-25 19:20 ` Ross Zwisler 2018-05-29 19:51 ` [PATCH v2 5/7] dm: remove DM_TYPE_DAX_BIO_BASED dm_queue_mode Ross Zwisler 2018-05-29 19:51 ` Ross Zwisler 2018-05-29 19:51 ` Ross Zwisler 2018-06-01 22:04 ` Mike Snitzer 2018-06-01 22:04 ` Mike Snitzer 2018-06-01 22:04 ` Mike Snitzer 2018-06-04 23:24 ` Ross Zwisler 2018-06-04 23:24 ` Ross Zwisler 2018-06-04 23:24 ` Ross Zwisler 2018-06-04 23:49 ` Kani, Toshi 2018-06-04 23:49 ` Kani, Toshi 2018-06-04 23:49 ` Kani, Toshi 2018-06-05 0:46 ` Mike Snitzer 2018-06-05 0:46 ` Mike Snitzer 2018-06-05 0:46 ` Mike Snitzer 2018-06-06 17:24 ` Ross Zwisler 2018-06-06 17:24 ` Ross Zwisler 2018-06-06 17:24 ` Ross Zwisler 2018-06-06 22:29 ` Mike Snitzer 2018-06-06 22:29 ` Mike Snitzer 2018-06-06 22:29 ` Mike Snitzer 2018-05-29 19:51 ` [PATCH v2 6/7] dm-snap: remove unnecessary direct_access() stub Ross Zwisler 2018-05-29 19:51 ` Ross Zwisler 2018-05-29 19:51 ` Ross Zwisler 2018-05-29 19:51 ` [PATCH v2 7/7] dm-error: " Ross Zwisler 2018-05-29 19:51 ` Ross Zwisler 2018-05-29 19:51 ` Ross Zwisler
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