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Message-ID: <20191209103432.GC3306@willie-the-truck>
Date: Mon, 9 Dec 2019 10:34:32 +0000
From: Will Deacon <will@...nel.org>
To: Jeffrin Jose <jeffrin@...agiritech.edu.in>
Cc: peterz@...radead.org, mingo@...hat.com,
linux-kernel@...r.kernel.org, linux-integrity@...r.kernel.org,
peterhuewe@....de, jarkko.sakkinen@...ux.intel.com, jgg@...pe.ca
Subject: Re: [PROBLEM]: WARNING: lock held when returning to user space!
(5.4.1 #16 Tainted: G )
Hi,
[expanding cc list]
On Sat, Dec 07, 2019 at 11:04:20PM +0530, Jeffrin Jose wrote:
> i got the following output related from typical dmesg output from 5.4.1 kernel
Was this during boot or during some other operation?
> ================================================
> WARNING: lock held when returning to user space!
> 5.4.1 #16 Tainted: G E
> ------------------------------------------------
> tpm2-abrmd/691 is leaving the kernel with locks still held!
> 2 locks held by tpm2-abrmd/691:
> #0: ffff8881ee784ba8 (&chip->ops_sem){.+.+}, at: tpm_try_get_ops+0x2b/0xc0 [tpm]
> #1: ffff8881ee784d88 (&chip->tpm_mutex){+.+.}, at: tpm_try_get_ops+0x57/0xc0 [tpm]
Can you reproduce this failure on v5.5-rc1?
Thanks,
Will
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