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Date: Tue, 26 May 2020 15:34:56 -0700 From: Alex Guzman <alex@...man.io> To: Tadeusz Struk <tstruk@...il.com>, James Bottomley <James.Bottomley@...senPartnership.com>, Mario Limonciello <mario.limonciello@...l.com>, Peter Huewe <peterhuewe@....de>, Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>, Jason Gunthorpe <jgg@...pe.ca> Cc: Arnd Bergmann <arnd@...db.de>, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, linux-integrity@...r.kernel.org, linux-kernel@...r.kernel.org, Jeffrin Jose T <jeffrin@...agiritech.edu.in> Subject: Re: [PATCH] tpm: Revert "tpm: fix invalid locking in NONBLOCKING mode" On Tue, 2020-05-26 at 14:33 -0700, Tadeusz Struk wrote: > On 5/26/20 1:00 PM, James Bottomley wrote: > > I don't think there is a root cause other than a TIS TPM is getting > > annoyed by us cycling localities too rapidly because we don't do an > > actual TPM operation between request and relinquish. Since the > > first > > request/relinquish seems unnecessary for the async case, moving the > > ops > > get eliminates the problem. > > Could be, so maybe we could try both patches. > More debug info on the error path won't hurt. > Thanks, > Tadeusz With your logging patch, I consistently see this message in dmesg when tpm2_getcap fails: tpm tpm0: request_locality: failed to request locality 0 after 750 ms
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