linux-kernel - Regression in suspend-to-ram (TPM related) with 5.1-rc1

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Date:   Mon, 18 Mar 2019 14:39:36 -0700
From:   Paul Zimmerman <pauldzim@...il.com>
To:     Peter Huewe <peterhuewe@....de>,
        Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>
Cc:     linux-integrity@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Regression in suspend-to-ram (TPM related) with 5.1-rc1

Hello,

I'm seeing suspend-to-ram fail consistently in 5.1-rc1. Dmesg shows a
failure in the TPM subsystem. This is on an HP Elitebook 640 G1 running
Linux Mint.

[   43.110604] wlo1: deauthenticating from 58:8b:f3:44:8f:5c by local
choice (Reason: 3=DEAUTH_LEAVING)
[   53.179672] PM: suspend entry (deep)
[   53.179674] PM: Syncing filesystems ... done.
[   53.190349] Freezing user space processes ... (elapsed 0.001 seconds) done.
[   53.192107] OOM killer disabled.
[   53.192107] Freezing remaining freezable tasks ... (elapsed 0.001
seconds) done.
[   53.193147] printk: Suspending console(s) (use no_console_suspend to debug)
[   53.209184] sd 2:0:0:0: [sdb] Synchronizing SCSI cache
[   53.213137] sd 0:0:0:0: [sda] Synchronizing SCSI cache
[   53.214632] sd 0:0:0:0: [sda] Stopping disk
[   53.241598] tpm tpm0: tpm_try_transmit: send(): error -5
[   53.241600] tpm tpm0: Error (-5) sending savestate before suspend
[   53.241606] PM: __pnp_bus_suspend(): tpm_pm_suspend+0x0/0x90 returns -5
[   53.241609] PM: dpm_run_callback(): pnp_bus_suspend+0x0/0x20 returns -5
[   53.241610] PM: Device 00:06 failed to suspend: error -5

Full dmesg and config attached. Anything I can do to help debug this?
It takes about 45 minutes to do a full kernel rebuild on this machine,
so doing a full bisection would be a little painful.

-- Paul

View attachment "dmesg.txt" of type "text/plain" (71728 bytes)

View attachment "config.txt" of type "text/plain" (204366 bytes)