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From: "Theodore Ts'o" <tytso@mit.edu>
To: Linus Torvalds <torvalds@linux-foundation.org>,
	Rajiv Andrade <srajiv@linux.vnet.ibm.com>,
	James Morris <jmorris@namei.org>
Cc: linux-kernel@vger.kernel.org
Subject: [REGRESSION] tpm_tis on Lenovo T410 broken in 2.6.38-rc6
Date: Tue, 01 Mar 2011 10:25:28 -0500	[thread overview]
Message-ID: <E1PuRS4-0001rO-DS@tytso-glaptop> (raw)


TPM is working for me so I can log into employer's network in 2.6.37.
It broke when I tried 2.6.38-rc6, with the following relevant lines from
my dmesg:

[   11.081627] tpm_tis 00:0b: 1.2 TPM (device-id 0x0, rev-id 78)
[   25.734114] tpm_tis 00:0b: Operation Timed out
[   78.040949] tpm_tis 00:0b: Operation Timed out

This caused me to get suspicious, especially since the _other_ TPM
commit in 2.6.38 had already been reverted, so I tried reverting commit
c4ff4b829e: "TPM: Long default timeout fix".   With this commit
reverted, my TPM on my Lenovo T410 is once again working.

Given how late we are in the 2.6.38-rc cycle, maybe we should revert
this commit in Linus's tree?

                                                - Ted

             reply	other threads:[~2011-03-01 15:25 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-03-01 15:25 Theodore Ts'o [this message]
     [not found] <E1PuKHL-0000lw-RM@tytso-glaptop>
     [not found] ` <4D6CFA80.3020505@linux.vnet.ibm.com>
2011-03-01 15:38   ` Theodore Tso
     [not found]     ` <4D6D65C4.5000602@linux.vnet.ibm.com>
2011-03-01 21:47       ` Ted Ts'o
     [not found]   ` <AANLkTi=BtfXYV+1_JZh0SRZhJz=Ys3wCF-t5rBR2iz8O@mail.gmail.com>
     [not found]     ` <4D6D61B1.7000302@linux.vnet.ibm.com>
2011-03-01 21:37       ` Ted Ts'o
2011-03-04 14:44         ` Rajiv Andrade
2011-03-05 16:48           ` Ted Ts'o
2011-03-08  2:55             ` Rajiv Andrade
2011-03-09 19:02               ` Ted Ts'o

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