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From: Jerry Snitselaar <jsnitsel@redhat.com>
To: James Bottomley <James.Bottomley@hansenpartnership.com>
Cc: Alex Guzman <alex@guzman.io>, linux-integrity@vger.kernel.org
Subject: Re: Debugging errors with Dell XPS 9560 TPM
Date: Fri, 14 Feb 2020 14:02:03 -0700
Message-ID: <20200214210203.dgzhkrvagiozezfi@cantor> (raw)
In-Reply-To: <1581712162.16860.8.camel@HansenPartnership.com>

On Fri Feb 14 20, James Bottomley wrote:
>On Fri, 2020-02-14 at 10:32 -0800, Alex Guzman wrote:
>> Looks like someone had a look on the bug tracker
>> (https://bugzilla.kernel.org/show_bug.cgi?id=206275#c6)
>> and they figure it's definitely a regression in the kernel and should
>> be reverted or rectified. They advised me to come ping here once
>> more.
>
>Reading the bugzilla, I don't get *what* needs to be reverted.  The
>commit 4d6ebc4c4950595414722dfadd0b361f5a05d37e isn't present in
>upstream, so what kernel is it present in, or what is the full commit
>message so we can find the upstream commit?
>
>James
>
>
>> - Alex
>>
>> On Sat, Feb 1, 2020 at 4:19 PM Alex Guzman <alex@guzman.io> wrote:
>> >
>> > Hey there! I reported a bug on the bug tracker a bit ago but
>> > haven't
>> > seen any movement, so I figured I'd drop in here. My XPS 9560 has
>> > been
>> > having issues with its TPM, and all commands will fail with error 1
>> > when operating on the TPM device. I managed to bisect it back to
>> > commit 4d6ebc4c4950595414722dfadd0b361f5a05d37e (tpm: fix invalid
>> > locking in NONBLOCKING mode) though it began failing with error 14
>> > (bad address) at that point.
>> >
>> > I reported the bug at
>> > https://bugzilla.kernel.org/show_bug.cgi?id=206275 and attached
>> > some
>> > dmesg logs from boot there. Does anyone have any suggestions for
>> > additional debugging or such to figure out what's happening here?
>> >
>> > - Alex
>>
>>
>

d23d12484307 | 2019-12-17 | tpm: fix invalid locking in NONBLOCKING mode (Tadeusz Struk)

There is a commit that is a fix to this commit:

a430e67d9a2c | 2020-01-08 | tpm: Handle negative priv->response_len in tpm_common_read() (Tadeusz Struk)


  reply index

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-02  0:19 Alex Guzman
2020-02-14 18:32 ` Alex Guzman
2020-02-14 20:29   ` James Bottomley
2020-02-14 21:02     ` Jerry Snitselaar [this message]
2020-02-14 21:04       ` James Bottomley
2020-02-15  1:47         ` Alex Guzman
2020-02-18 17:52           ` Tadeusz Struk
2020-02-19 20:32             ` Alex Guzman
2020-02-18 17:52           ` Tadeusz Struk

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