From: "Scargall, Steve" <steve.scargall@intel.com>
To: Adam Borowski <kilobyte@angband.pl>,
"nvdimm@lists.linux.dev" <nvdimm@lists.linux.dev>,
"Williams, Dan J" <dan.j.williams@intel.com>,
"Verma, Vishal L" <vishal.l.verma@intel.com>
Subject: RE: ndctl hangs with big memmap=! fakepmem
Date: Wed, 20 Oct 2021 15:01:15 +0000 [thread overview]
Message-ID: <BY5PR11MB3989976BB2AE9F2B31E55B1695BE9@BY5PR11MB3989.namprd11.prod.outlook.com> (raw)
In-Reply-To: <YXAhzF9qQsTPDfWU@angband.pl>
Hi Adam,
This is likely related to an issue that was reported to the Linux NVDIMM email list (https://lore.kernel.org/linux-block/CAHj4cs87BapQJcV0a=M6=dc9PrsGH6qzqJEt9fbjLK1aShnMPg@mail.gmail.com/)
So the bisecting shows it was introduced with below commit:
commit 8e141f9eb803e209714a80aa6ec073893f94c526
Author: Christoph Hellwig <hch@lst.de>
Date: Wed Sep 29 09:12:40 2021 +0200
block: drain file system I/O on del_gendisk
/Steve
-----Original Message-----
From: Adam Borowski <kilobyte@angband.pl>
Sent: Wednesday, October 20, 2021 8:04 AM
To: nvdimm@lists.linux.dev; Williams, Dan J <dan.j.williams@intel.com>; Verma, Vishal L <vishal.l.verma@intel.com>
Subject: Re: ndctl hangs with big memmap=! fakepmem
On Wed, Oct 20, 2021 at 03:23:08PM +0200, Adam Borowski wrote:
> Hi!
> After bumping fakepmem sizes from 4G!20G 4G!36G to 32G!20G 32G!192G,
> ndctl hangs. Eg, at boot:
>
> [ 725.642546] INFO: task ndctl:2486 blocked for more than 604 seconds.
> [ 725.649586] Not tainted 5.15.0-rc6-vanilla-00020-gd9abdee5fd5a #1
> [ 725.677539] ? __schedule+0x30b/0x14e0 [ 725.681975] ?
> kernfs_put.part.0+0xd4/0x1a0 [ 725.686841] ?
> kmem_cache_free+0x28b/0x2b0 [ 725.691622] ? schedule+0x44/0xb0 [
> 725.695622] ? blk_mq_freeze_queue_wait+0x62/0x90
> [ 725.701009] ? do_wait_intr_irq+0xc0/0xc0 [ 725.705703] ?
> del_gendisk+0xcf/0x220 [ 725.710050] ? release_nodes+0x38/0xa0
On 5.14.14 all is fine. Should I bisect?
Meow!
--
⢀⣴⠾⠻⢶⣦⠀
⣾⠁⢠⠒⠀⣿⡁ Remember, the S in "IoT" stands for Security, while P stands ⢿⡄⠘⠷⠚⠋⠀ for Privacy.
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next prev parent reply other threads:[~2021-10-20 15:01 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-20 13:23 ndctl hangs with big memmap=! fakepmem Adam Borowski
2021-10-20 14:03 ` Adam Borowski
2021-10-20 15:01 ` Scargall, Steve [this message]
2021-10-21 1:38 ` Yi Zhang
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