Messages in this thread | | | From | Keerthy <> | Subject | Suspend/Resume Broken on AM43/AM33 Platforms | Date | Mon, 19 Aug 2019 09:54:58 +0530 |
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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
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