From: Keerthy <j-keerthy@ti.com>
To: <swboyd@chromium.org>, Tony Lindgren <tony@atomide.com>,
<herbert@gondor.apana.org.au>
Cc: Linux-OMAP <linux-omap@vger.kernel.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
"Kristo, Tero" <t-kristo@ti.com>, Dave Gerlach <d-gerlach@ti.com>
Subject: Suspend/Resume Broken on AM43/AM33 Platforms
Date: Mon, 19 Aug 2019 09:54:58 +0530 [thread overview]
Message-ID: <49fc7c64-88c0-74d0-2cb3-07986490941d@ti.com> (raw)
Hi Stephen,
commit 03a3bb7ae63150230c5de645dc95e673ebf17e1a
Author: Stephen Boyd <swboyd@chromium.org>
Date: Mon Aug 5 16:32:41 2019 -0700
hwrng: core - Freeze khwrng thread during suspend
Commit seems to be breaking suspend/resume on TI AM43/AM33 platforms.
rtcwake: wakeup from "mem" using /dev/rtc0 at Sun Nov 18 02:12:12 2018
[ 54.033833] PM: suspend entry (deep)
[ 54.037741] Filesystems sync: 0.000 seconds
[ 54.062730] Freezing user space processes ... (elapsed 0.001 seconds)
done.
[ 54.071313] OOM killer disabled.
[ 54.074572] Freezing remaining freezable tasks ...
[ 74.083121] Freezing of tasks failed after 20.003 seconds (1 tasks
refusing to freeze, wq_busy=0):
[ 74.092257] hwrng R running task 0 289 2
0x00000020
[ 74.099511] [<c08c64c4>] (__schedule) from [<c08c6a10>]
(schedule+0x3c/0xc0)
[ 74.106720] [<c08c6a10>] (schedule) from [<c05dbd8c>]
(add_hwgenerator_randomness+0xb0/0x100)
[ 74.115358] [<c05dbd8c>] (add_hwgenerator_randomness) from
[<bf1803c8>] (hwrng_fillfn+0xc0/0x14c [rng_core])
[ 74.125356] [<bf1803c8>] (hwrng_fillfn [rng_core]) from [<c015abec>]
(kthread+0x134/0x148)
[ 74.133764] [<c015abec>] (kthread) from [<c01010e8>]
(ret_from_fork+0x14/0x2c)
[ 74.141093] Exception stack(0xec611fb0 to 0xec611ff8)
[ 74.146239] 1fa0: 00000000
00000000 00000000 00000000
[ 74.154478] 1fc0: 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000
[ 74.162764] 1fe0: 00000000 00000000 00000000 00000000 00000013 00000000
[ 74.169499] Restarting kernel threads ... done.
[ 74.175628] OOM killer enabled.
[ 74.178796] Restarting tasks ... done.
[ 74.226769] PM: suspend exit
rtcwake: write error
1
One task refusing to freeze is the final error i am seeing.
- Keerthy
next reply other threads:[~2019-08-19 4:24 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-19 4:24 Keerthy [this message]
2019-08-19 6:27 ` Stephen Boyd
2019-08-19 7:27 ` Keerthy
2019-08-19 15:00 ` Stephen Boyd
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