From: Sasha Levin <sashal@kernel.org>
To: David Lomas <david.s.lomas@gmail.com>, gregkh@linuxfoundation.org
Cc: Sasha Levin <sashal@kernel.org>,
stable@vger.kernel.org, rafael.j.wysocki@intel.com,
matthew.leach@collabora.com, superm1@kernel.org,
linux-pm@vger.kernel.org, regressions@lists.linux.dev
Subject: Re: [PATCH 6.18 0167/1250] PM: hibernate: call preallocate_image() after freeze prepare
Date: Sun, 20 Sep 2026 20:13:01 -0400 [thread overview]
Message-ID: <20260920200637.10dc42c1bb6a@kernel.org> (raw)
In-Reply-To: <CALjEBWQo0-Sdimo+aRNKUQvgDGw=jBFCcfwCXaqVdtoPrHLAQA@mail.gmail.com>
On Sat, Sep 19, 2026 at 02:47:25PM +0100, David Lomas wrote:
> Upstream commit 783c8109844503bd1c35dab41b6d5fd074a9f131 deadlocks
> hibernation entry on my machine (7.2.4, Dell XPS 13 9360, 8 GB, zswap
> on) whenever the system has been in use for some hours: the hibernate
> call never returns and the laptop sits warm with no image written,
Thank you for the report!
> Captured with SysRq (w) after ~8 minutes hung. The hibernating task is
> in the direct-reclaim throttle waiting for kswapd, which was frozen 27
> ms earlier by freeze_kernel_threads(), which this commit moved ahead
> of hibernate_preallocate_memory():
I've dropped the patch from the 6.18 queue. 783c8109 has not appeared in
a released 6.18.y yet (v6.18.52 is the latest), so dropping it from the
queue is enough to keep 6.18.y clear of this.
--
Thanks,
Sasha
next prev parent reply other threads:[~2026-09-21 0:13 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-19 13:47 [PATCH 6.18 0167/1250] PM: hibernate: call preallocate_image() after freeze prepare David Lomas
2026-09-20 17:50 ` Sasha Levin
2026-09-21 8:08 ` Thorsten Leemhuis
2026-09-21 10:22 ` David Lomas
2026-09-21 0:13 ` Sasha Levin [this message]
-- strict thread matches above, loose matches on Subject: below --
2026-09-19 20:52 David Lomas
2026-09-21 21:18 ` Hic Haec Hoc
2026-09-17 14:56 [PATCH 6.18 0000/1250] 6.18.53-rc1 review Greg Kroah-Hartman
2026-09-17 14:59 ` [PATCH 6.18 0167/1250] PM: hibernate: call preallocate_image() after freeze prepare Greg Kroah-Hartman
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